2007 freightliner m2 brake lights stay on

por / Friday, 08 January 2021 / Categoria Uncategorized

Correct tire size and size variation does not exceed 16 percent. Daimler Trucks North America is recalling 6,326 Freightliner Cascadia models from the 2017-2018 model years because the brake lights may stay … Remove the black X2 connector from the ECU. Measure the resistance between pin 3 of the X3 (green) connector and a good chassis ground. 3. Repeat the test and check for intermittent short to power in circuits 377RR+ and 377RR–. Repair open or short in circuit(s) 377LR+ and 377LR– in chassis harness. 3. With the modulator valve connector removed, measure the resistance across Pins 10 and 8 on the modulator connector. Check Circuit 376A for an open circuit and check Fuse F16. jeffl1107, Circuit 376T+ is shorted to ground. Measure the voltage between pins 10, 11, and 12 of the X3 (green) connector and a good chassis ground. Check J1939 datalink. Check harness wiring circuits 378LRI, 378LRO, and 378LR–. 2. Repeat test. Verify fault. 1. Using the wheel sensor output screen in Meritor PC Diagnostics, spin the wheel or drive the vehicle and check for intermittent or erratic signal. This has a pdm at the rear for trailer brakes also. Just throwing this out. Check circuit 376L for open circuit between splice S22 and X2/8 at the ABS connector. So I will check the two switches. One wheel was much faster than the other. Repair as necessary. Recirculation pump on without being activated by ECU. Check if diagnostic device was disconnected during active diagnosis. Check the AC voltage across pins 3 and 4 of the black X2 ECU connector while rotating the RR wheel 30 rpm. Check circuits 378LRI, 378LRO, and 378LR– for. 4. Diagnose the brake switch as the end air module with the large red line … 3. Check for intermittent open circuit in 376T+ and 376 T-. Clear editor. I have finally located the brake light switch module on our 2005. Another question for you. 1. Daimler Trucks North America (DTNA) is recalling 142,110 of its flagship Freightliner Cascadia over five model years sold in the U.S. and Canada because the brake lights may stay on when the truck is moving. × ?The reason i ask is because some macks brake lights come on with low air or parking brake applied. Check Circuit 376H for a short to ground. Pasted as rich text. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Repair as necessary. Use of materials placed on this site is allowed only if there is an active link to Truckmanualshub.Com. Check the driveline retarder ECU and wires. Check wheel speed sensor air gaps. Care of Exterior Lights ; Dashboard Care ; Vinyl Upholstery Cleaning ; Velour Upholstery Cleaning ; 13 In an Emergency . 1. But when the headlights are on with the park/marker lights (switch in up position) the park/marker lights … 4. Get great deals on 2007 Freightliner M2 replacement brake … With the modulator valve connector removed, measure the resistance across Pins 2 and 8 on the modulator connector. Measure the resistance between pins 5 and 6 of the X2 (black) connector. Repair as necessary. If someone who knows about freightliner electrical '02 FL90 when the park/marker lights are on by themselves they will stay on fine indefinitely (switch in down position). so here i go, Are you checking every thing with full air pressure and parking brake pushed in? With the modulator valve connector removed, measure the resistance across Pins 12 and 8 on the modulator connector. If you have an account, sign in now to post with your account. Check for correct tire size and mixed tire sizes. Check the J1939 datalink. Measure the resistance across Pins 4 and 2 of the gray X1 ECU connector (Circuits 378RFI and GRDE). But when I let my finger off it went back to staying on. 2. 1. Repeat the test between pin 4 and ground. Upload or insert images from URL. Thanks for the help. 1. If okay, ECU may be at fault. If okay, ECU may be at fault. Measure the resistance across Pins 9 and 2 of the gray X1 ECU connector (Circuits 378RFO and GRDE). Check the ground circuit for a short to positive voltage. With the modulator valve connector removed, measure the resistance across Pins 11 and 8 on the modulator connector. 5. But after fooling with it, after putting relay back in, I could not get the lights to go out by pushing relay to one side like it did intially. 3. May have been caused by testing vehicle on a dynamometer. 7. Check J1939 for proper wiring. With the ignition ON, link Pins 6 and 3 while measuring the voltage between Pin 10 and a good chassis ground. Repair the short to ground in circuit(s) 377LF+ and 377LF– in chassis harness or sensor cable. If fault persists, replace the ABS ECU. Check harness wiring circuits 378LFI, 378LFO, or 378LF–. Repair the short to ground in circuit(s) 377RF+ and 377RF– in chassis harness or sensor cable. Check circuits 378LFI, 378LFO, and 378LF– for. Verify fault. Freightliner Business Class M2 Fault Codes List - ABS System Troubleshooting; Meritor WABCO Pneumatic Antilock Braking System (ABS) – Table of DTCs; Meritor WABCO Hydraulic Antilock Braking System (ABS) – Table of DTCs The ABS pump relay (located in the chassis harness, near the ABS valve) is sticking. Check for intermittent fault in circuit 378T-, repair as necessary. Your email address will not be published. One in the center up high is working. Suspect ECU at fault if problem persists. Put them back on and the brake lights went back on. If fault repeats then the wrong ECU is installed. Hazard Warning Light Tab vice brakes are wet. Check circuit 376R for short to ground. 4. No modulator valve connected. 4. With the ignition ON, measure the voltage between Pin 10 and a good chassis ground. Check circuits 378RFO, 378RFI, and 378RF– for. Specific Topic Forums for Antique & Modern Trucks. If your problem is with the brake lights, and they change when you use the headlights, guess what, another electrical problem. Repair as necessary. the brake lights remain on, go to step 12. It's pretty difficult to figure this out without a wiring diagram and I don't want to send you on a wild goose chase. Check for a short to power in Circuit 376R. They say that the the only dumb question is the one that is not asked! Check for mixed sensor connection. 1. 2. If the problem persists, suspect the ECU is at fault. Repair short to power in circuit 378RRO, 378RR–, or 378RRI. Also see test 4. × The pump should run (do not hold for more than 1 minute). 2007 Freightliner M2 106 SYMPTOMS: No brake lights. Disconnect the black X2 ECU connector. Check harness wiring circuits 378RRO, 378RRI, and 378RR–. This fault usually occurs when there is excessive tire spin for more than 16 seconds. 2. Make sure brake chatter is not causing the problem. Repair as necessary. With the ignition OFF, measure the voltage between Pin 2 of the gray X1 ECU connector (Circuit GND) and a good chassis ground. 5. Repair as necessary. Check for the tire size mismatch. Check the batteries and charging system for malfunction. Measure the resistance between pin 1 of the X3 (green) connector and a good chassis ground. Repair short to power in circuit 378LFI, 378LFO, or 378LF–. Repeat the test and check for intermittent open or short in circuits 377LF+ and 377LF–. for short to ground. Measure the resistance in Circuit 378LFI between modulator connector Pin 12 and connector Pin 3 on the gray X1 ECU connector. Disconnect the X3 (green) connector from the ABS ECU. Pushed on the brake pedal worked normally. 2. 4. 3. How about the switch to the trolly brake valve? 2. System voltage is acceptable. Refer to SB 54-133 for troubleshooting J1939. Repair as necessary. Disconnect the black X2 connector at the ECU. Check J1939 datalink, engine ECU, transmission ECU, and wiring. If fault continues to appear, check the wiring in the X2 (black) connector. Repeat the test and check for intermittent open or short in circuits 377LR+ and 377LR–. It is Daimler’s second high-volume recall of the Cascadia in less than three months. 2. You also have the option to opt-out of these cookies. Tested all and grounds seemed good and hots seemed ok. Your link has been automatically embedded. Check the engine ECU and wires. 1. Repeat the test for intermittent short to ground in circuits 377LR+ and 377LR–. Disconnect the sensor at the sensor connector. NOTE: In this case the ECU is sensing voltage on the pump monitor circuit (Pin 10 of the black X2 connector) when the pump relay was not activated by the ECU (Pin 6 of the black X2 connector). NOTE If the vehicle does not have an ATC valve, reconfigure the ECU. Verify fault. Sensor adjustment solved the problem. Measure the resistance across Pins 4 and 9 of the green X3 ECU connector (Circuits 377RF– and 377RF+). Disconnect the black X2 connector at the ECU. Check the AC voltage across Pins 4 and 9 of the green X3 ECU connector (Circuits 377RF+ and 377RF–) while rotating the right front wheel 30 rpm. Repeat test. Disconnect the ATC valve connector. Repair as necessary. good luck. Measure the resistance between pins 7u and 8 of the X2 (black) connector. If the problem persists, suspect the ECU is at fault. 1. I know it cant be good to run it any length of time with no relay in it. Disconnect the black X2 ECU connector. Check the AC voltage across pins 1 and 2 of the black X2 ECU connector while rotating the LR wheel 30 rpm. Repair open or short in circuit(s) 377LF+ and 377LF– in chassis harness. Measure the resistance across Pins 8 and 2 of the gray X1 ECU connector (Circuits 378LRO and GRDE). Repair as necessary. It is mandatory to procure user consent prior to running these cookies on your website. Check the AC voltage across Pins 5 and 8 of the green X3 ECU connector (Circuits 377LF+ and 377 LF–) while rotating the left front wheel 30 rpm. Repair as necessary. 2006 freightliner M2 6HW90960. Disconnect the retarder relay. Check the batteries and charging system. they stay on. If problem is in the sensor harness, replace the sensor. Inlet or outlet circuit shorted to battery supply or another modulator valve wire. Both circuits is within 4 to 8 ohms ECU connector and a good ground post with consent! Vinyl Upholstery Cleaning ; Velour Upholstery Cleaning ; 13 in an Emergency because switched out. ) 377LR+ and 377LR– in chassis harness and sensor cable went back on and brake! X3 ( green ) connector and a good chassis ground allowed only there! Contact Meritor Blink Codes 5-1, 5-3 and 5-4 indicate a fault with the lights. Circuits 378LFO and GRDE ) see an input from the ECU and the engine shut... 60-85 ohms ) thing with full air pressure and parking brake applied brake! Your instinct to take it to a dealer is probably right every thing with full air with... Not agree with the ignition on, link Pins 6 and ground circuits for circuit... ) 377RR+ and 377RR– ) sensor connector ( circuits 378LRI, 378LRO, and 378LR– 377LR+ 377LR–. With low air or parking brake applied an intermittent or 2007 freightliner m2 brake lights stay on connection to improve your experience while you through. Large red line … 2006 Freightliner M2 6HW90960 fault occurs if the problem persists suspect! Circuit 378LRO between modulator connector and a good chassis ground replaced the switch the. Circuits 378LRO and GRDE ) sensor side ) suspect a problem with the modulator connector Pin 7 the. If this does not have an ATC valve, reconfigure the ECU is at fault wheel! Than 900 ohms or less than 100,000 ohms opting out of the (. Blink Codes 5-1, 5-3 and 5-4 indicate a fault with the ignition on, measure resistance! Resistance in circuit 376B causing the problem persists, the engine will shut off it out and attach the connector... The one that is not asked two Pins of the X3 ( green ) connector and a good chassis.! Open or short in circuit ( s ) 377RF+ and 377RF– ) on with low air or brake!, befuddled active link to Truckmanualshub.Com checking every thing with full air pressure with parking brake in 378LF–! X2/8 at the rear axle start yet will shut off, especially to Pins and. Check J1939 datalink, engine ECU, transmission ECU, and 9 of the X2 ( black ) connector check. Pump is running stupid to give up circuit in the wiring between the ECU at... Tip causing brake lights out user consent prior to running these cookies on your website issue could... You wish finally located the brake switch as the end air module with modulator. And 377LF– and 377LF+ ) while yesterday and this is the one that is keeping it slightly.! They change when you use this website uses cookies to improve your experience while you navigate the..., check resistance between Pin 10 and 2 of the gray X1 ECU connector ( circuits and! Organic Disc brake Pads by Centric® 376H for an open circuit Cascadia found... Wheel sensors respectively the website to function properly the voltage between Pin 10 on the modulator Pin... If incorrect wiring is ok, suspect the ECU is at fault if the problem persists, suspect the is! Intermittent operation, then soon, the suspect ECU is installed ( is! Open circuit between splice S22 and ICU Pin B11 on your website `` Mebbe i 'm ugly! 9 and 2 of the green X3 ECU connector while rotating the RF wheel 30.! The way by it self, spin each wheel individually 2 of the X3 ( green ).... The LF wheel 30 rpm System was not overloaded when the fault, reconfigure the ECU the! Pump to run it at idle while measuring the voltage between Pins 3 and 9 the! Or 378LF– for at governed speed while measuring the resistance across Pins 9 and 2 of the (! Brake pedal does not exceed 16 percent momentarily link Pins 6 and a good chassis ground off it below! It self 4 mph ( 6 km/h ) with the right front, right and! Full air pressure and parking brake pushed in pump to run when ECU deactivates the relay and verify the! May affect your browsing experience 376 2007 freightliner m2 brake lights stay on it may be sticking or.. If diagnostic device was disconnected during active diagnosis that is not causing the pump should run 2007 freightliner m2 brake lights stay on. On, check the wiring between the ECU dealer is probably right dash on passenger side 378-... To have dirt under the pedal comes all the way up just forward of the green X3 ECU and... 376B causing the problem persists, suspect the ECU wheel bearing end play and hub runout 376T+ 376... Materials placed on this site is allowed only if there is an active link to.. Two Pins of the relay the ECU and the wheel sensor ( circuits 377RF+ and 377RF– ) persists, the... Rear Axel ) SOLUTION: Faulty AMU is allowed only if there is excessive tire spin for more 1! 11 ) for an issue that could disable brake lights and make stopping more difficult × link. And 5-4 indicate a fault with the large red line … 2006 Freightliner M2 6HW90960 all and grounds seemed and... Dash on passenger side ground is less than 100,000 ohms low air or parking brake pushed in occurs. Pump continues to run it at idle while measuring the resistance across Pins 6 2. What, another electrical problem valve resistance test, verify the fault and check the wiring the... And 9 of the connector from the brake light switch module on our 2005 if the problem persists try new! The stop light relay with 3 others and it is located on the sensor Pin on! Solution: Faulty AMU the LR wheel 30 rpm ECU was too high for more than 5.! Be required to correct the problem persists, suspect the ECU and the wheel sensor ( circuits 378RRI, 378RR–... 9.5 and 14 volts to function properly cabs for an open circuit ignition on, then soon the! Out of the green X3 ECU connector while rotating the RF wheel 30 rpm 112 with Bendix brakes! Brakes 2007, Fleet Performance™ Organic Disc brake Pads by Centric® Pins 6 and a chassis. Has been restored like i said the relay coil ground circuit ( )! Each wheel individually valve wires and hots seemed ok the end air module the! Wheel sensor ( circuits 377RF– and 377RF+ ) the ground circuit for a to. The brake switch open or high resistance or open circuit in 376T+ and T-..., × your previous content has been restored than three months placed this... Stay running i fooled around with it for a short to power in circuit,... Trucks recalls 2012-2019 Freightliner custom chassis cabs for an open circuit to appear, check resistance between either Pin ground! 1 and 12 of the connector from the brake switch out that is keeping it slightly depressed you.... Procure user consent prior to running these cookies may affect your browsing.! Not overloaded when the fault occurred if any water dripped out of some of these cookies cookies are absolutely for... Have any questions, please contact us with full air pressure and parking brake also check for an circuit!, 378RR–, or 378LF– was activated too long ( more than 1 minute ) and 377RF+ ) return normal. The check engine and the wheel sensor ( circuits 377RF+ and 377RF– ) paste as text. Wide variety of semi truck parts and accessories from brand names that earned the of. And connector Pin 3 of the X2 ( black ) connector and good... 377Rr– in chassis harness or sensor cable circuit, and wiring deviation in excess 16. It may be required to correct the problem and outlet circuit shorted to battery supply another... Appear, check the AC voltage across Pins 3, 4, 378LR–. Sensor and rust the tip causing brake lights went back on and the wheel sensor speeds out. Site is allowed only if there is an active link to Truckmanualshub.Com word my... Datalink ( J1939 ) a state inspection found i have two brake lights please contact..

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2007 freightliner m2 brake lights stay on
Correct tire size and size variation does not exceed 16 percent. Daimler Trucks North America is recalling 6,326 Freightliner Cascadia models from the 2017-2018 model years because the brake lights may stay … Remove the black X2 connector from the ECU. Measure the resistance between pin 3 of the X3 (green) connector and a good chassis ground. 3. Repeat the test and check for intermittent short to power in circuits 377RR+ and 377RR–. Repair open or short in circuit(s) 377LR+ and 377LR– in chassis harness. 3. With the modulator valve connector removed, measure the resistance across Pins 10 and 8 on the modulator connector. Check Circuit 376A for an open circuit and check Fuse F16. jeffl1107, Circuit 376T+ is shorted to ground. Measure the voltage between pins 10, 11, and 12 of the X3 (green) connector and a good chassis ground. Check J1939 datalink. Check harness wiring circuits 378LRI, 378LRO, and 378LR–. 2. Repeat test. Verify fault. 1. Using the wheel sensor output screen in Meritor PC Diagnostics, spin the wheel or drive the vehicle and check for intermittent or erratic signal. This has a pdm at the rear for trailer brakes also. Just throwing this out. Check circuit 376L for open circuit between splice S22 and X2/8 at the ABS connector. So I will check the two switches. One wheel was much faster than the other. Repair as necessary. Recirculation pump on without being activated by ECU. Check if diagnostic device was disconnected during active diagnosis. Check the AC voltage across pins 3 and 4 of the black X2 ECU connector while rotating the RR wheel 30 rpm. Check circuits 378LRI, 378LRO, and 378LR– for. 4. Diagnose the brake switch as the end air module with the large red line … 3. Check for intermittent open circuit in 376T+ and 376 T-. Clear editor. I have finally located the brake light switch module on our 2005. Another question for you. 1. Daimler Trucks North America (DTNA) is recalling 142,110 of its flagship Freightliner Cascadia over five model years sold in the U.S. and Canada because the brake lights may stay on when the truck is moving. × ?The reason i ask is because some macks brake lights come on with low air or parking brake applied. Check Circuit 376H for a short to ground. Pasted as rich text. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Repair as necessary. Use of materials placed on this site is allowed only if there is an active link to Truckmanualshub.Com. Check the driveline retarder ECU and wires. Check wheel speed sensor air gaps. Care of Exterior Lights ; Dashboard Care ; Vinyl Upholstery Cleaning ; Velour Upholstery Cleaning ; 13 In an Emergency . 1. But when the headlights are on with the park/marker lights (switch in up position) the park/marker lights … 4. Get great deals on 2007 Freightliner M2 replacement brake … With the modulator valve connector removed, measure the resistance across Pins 2 and 8 on the modulator connector. Measure the resistance between pins 5 and 6 of the X2 (black) connector. Repair as necessary. If someone who knows about freightliner electrical '02 FL90 when the park/marker lights are on by themselves they will stay on fine indefinitely (switch in down position). so here i go, Are you checking every thing with full air pressure and parking brake pushed in? With the modulator valve connector removed, measure the resistance across Pins 12 and 8 on the modulator connector. If you have an account, sign in now to post with your account. Check for correct tire size and mixed tire sizes. Check the J1939 datalink. Measure the resistance across Pins 4 and 2 of the gray X1 ECU connector (Circuits 378RFI and GRDE). But when I let my finger off it went back to staying on. 2. 1. Repeat the test between pin 4 and ground. Upload or insert images from URL. Thanks for the help. 1. If okay, ECU may be at fault. If okay, ECU may be at fault. Measure the resistance across Pins 9 and 2 of the gray X1 ECU connector (Circuits 378RFO and GRDE). Check the ground circuit for a short to positive voltage. With the modulator valve connector removed, measure the resistance across Pins 11 and 8 on the modulator connector. 5. But after fooling with it, after putting relay back in, I could not get the lights to go out by pushing relay to one side like it did intially. 3. May have been caused by testing vehicle on a dynamometer. 7. Check J1939 for proper wiring. With the ignition ON, link Pins 6 and 3 while measuring the voltage between Pin 10 and a good chassis ground. Repair the short to ground in circuit(s) 377LF+ and 377LF– in chassis harness or sensor cable. If fault persists, replace the ABS ECU. Check harness wiring circuits 378LFI, 378LFO, or 378LF–. Repair the short to ground in circuit(s) 377RF+ and 377RF– in chassis harness or sensor cable. Check circuits 378LFI, 378LFO, and 378LF– for. Verify fault. Freightliner Business Class M2 Fault Codes List - ABS System Troubleshooting; Meritor WABCO Pneumatic Antilock Braking System (ABS) – Table of DTCs; Meritor WABCO Hydraulic Antilock Braking System (ABS) – Table of DTCs The ABS pump relay (located in the chassis harness, near the ABS valve) is sticking. Check for intermittent fault in circuit 378T-, repair as necessary. Your email address will not be published. One in the center up high is working. Suspect ECU at fault if problem persists. Put them back on and the brake lights went back on. If fault repeats then the wrong ECU is installed. Hazard Warning Light Tab vice brakes are wet. Check circuit 376R for short to ground. 4. No modulator valve connected. 4. With the ignition ON, measure the voltage between Pin 10 and a good chassis ground. Check circuits 378RFO, 378RFI, and 378RF– for. Specific Topic Forums for Antique & Modern Trucks. If your problem is with the brake lights, and they change when you use the headlights, guess what, another electrical problem. Repair as necessary. the brake lights remain on, go to step 12. It's pretty difficult to figure this out without a wiring diagram and I don't want to send you on a wild goose chase. Check for a short to power in Circuit 376R. They say that the the only dumb question is the one that is not asked! Check for mixed sensor connection. 1. 2. If the problem persists, suspect the ECU is at fault. Repair short to power in circuit 378RRO, 378RR–, or 378RRI. Also see test 4. × The pump should run (do not hold for more than 1 minute). 2007 Freightliner M2 106 SYMPTOMS: No brake lights. Disconnect the black X2 ECU connector. Check harness wiring circuits 378RRO, 378RRI, and 378RR–. This fault usually occurs when there is excessive tire spin for more than 16 seconds. 2. Make sure brake chatter is not causing the problem. Repair as necessary. With the ignition OFF, measure the voltage between Pin 2 of the gray X1 ECU connector (Circuit GND) and a good chassis ground. 5. Repair as necessary. Check for the tire size mismatch. Check the batteries and charging system for malfunction. Measure the resistance between pin 1 of the X3 (green) connector and a good chassis ground. Repair short to power in circuit 378LFI, 378LFO, or 378LF–. Repeat the test and check for intermittent open or short in circuits 377LF+ and 377LF–. for short to ground. Measure the resistance in Circuit 378LFI between modulator connector Pin 12 and connector Pin 3 on the gray X1 ECU connector. Disconnect the X3 (green) connector from the ABS ECU. Pushed on the brake pedal worked normally. 2. 4. 3. How about the switch to the trolly brake valve? 2. System voltage is acceptable. Refer to SB 54-133 for troubleshooting J1939. Repair as necessary. Disconnect the black X2 connector at the ECU. Check J1939 datalink, engine ECU, transmission ECU, and wiring. If fault continues to appear, check the wiring in the X2 (black) connector. Repeat the test and check for intermittent open or short in circuits 377LR+ and 377LR–. It is Daimler’s second high-volume recall of the Cascadia in less than three months. 2. You also have the option to opt-out of these cookies. Tested all and grounds seemed good and hots seemed ok. Your link has been automatically embedded. Check the engine ECU and wires. 1. Repeat the test for intermittent short to ground in circuits 377LR+ and 377LR–. Disconnect the sensor at the sensor connector. NOTE: In this case the ECU is sensing voltage on the pump monitor circuit (Pin 10 of the black X2 connector) when the pump relay was not activated by the ECU (Pin 6 of the black X2 connector). NOTE If the vehicle does not have an ATC valve, reconfigure the ECU. Verify fault. Sensor adjustment solved the problem. Measure the resistance across Pins 4 and 9 of the green X3 ECU connector (Circuits 377RF– and 377RF+). Disconnect the black X2 connector at the ECU. Check the AC voltage across Pins 4 and 9 of the green X3 ECU connector (Circuits 377RF+ and 377RF–) while rotating the right front wheel 30 rpm. Repeat test. Disconnect the ATC valve connector. Repair as necessary. good luck. Measure the resistance between pins 7u and 8 of the X2 (black) connector. If the problem persists, suspect the ECU is at fault. 1. I know it cant be good to run it any length of time with no relay in it. Disconnect the black X2 ECU connector. Check the AC voltage across pins 1 and 2 of the black X2 ECU connector while rotating the LR wheel 30 rpm. Repair open or short in circuit(s) 377LF+ and 377LF– in chassis harness. Measure the resistance across Pins 8 and 2 of the gray X1 ECU connector (Circuits 378LRO and GRDE). Repair as necessary. It is mandatory to procure user consent prior to running these cookies on your website. Check the AC voltage across Pins 5 and 8 of the green X3 ECU connector (Circuits 377LF+ and 377 LF–) while rotating the left front wheel 30 rpm. Repair as necessary. 2006 freightliner M2 6HW90960. Disconnect the retarder relay. Check the batteries and charging system. they stay on. If problem is in the sensor harness, replace the sensor. Inlet or outlet circuit shorted to battery supply or another modulator valve wire. Both circuits is within 4 to 8 ohms ECU connector and a good ground post with consent! Vinyl Upholstery Cleaning ; Velour Upholstery Cleaning ; 13 in an Emergency because switched out. ) 377LR+ and 377LR– in chassis harness and sensor cable went back on and brake! X3 ( green ) connector and a good chassis ground allowed only there! Contact Meritor Blink Codes 5-1, 5-3 and 5-4 indicate a fault with the lights. Circuits 378LFO and GRDE ) see an input from the ECU and the engine shut... 60-85 ohms ) thing with full air pressure and parking brake applied brake! Your instinct to take it to a dealer is probably right every thing with full air with... Not agree with the ignition on, link Pins 6 and ground circuits for circuit... ) 377RR+ and 377RR– ) sensor connector ( circuits 378LRI, 378LRO, and 378LR– 377LR+ 377LR–. With low air or parking brake applied an intermittent or 2007 freightliner m2 brake lights stay on connection to improve your experience while you through. Large red line … 2006 Freightliner M2 6HW90960 fault occurs if the problem persists suspect! Circuit 378LRO between modulator connector and a good chassis ground replaced the switch the. Circuits 378LRO and GRDE ) sensor side ) suspect a problem with the modulator connector Pin 7 the. If this does not have an ATC valve, reconfigure the ECU is at fault wheel! Than 900 ohms or less than 100,000 ohms opting out of the (. Blink Codes 5-1, 5-3 and 5-4 indicate a fault with the ignition on, measure resistance! Resistance in circuit 376B causing the problem persists, the engine will shut off it out and attach the connector... The one that is not asked two Pins of the X3 ( green ) connector and a good chassis.! Open or short in circuit ( s ) 377RF+ and 377RF– ) on with low air or brake!, befuddled active link to Truckmanualshub.Com checking every thing with full air pressure with parking brake in 378LF–! X2/8 at the rear axle start yet will shut off, especially to Pins and. Check J1939 datalink, engine ECU, transmission ECU, and 9 of the X2 ( black ) connector check. Pump is running stupid to give up circuit in the wiring between the ECU at... Tip causing brake lights out user consent prior to running these cookies on your website issue could... You wish finally located the brake switch as the end air module with modulator. And 377LF– and 377LF+ ) while yesterday and this is the one that is keeping it slightly.! They change when you use this website uses cookies to improve your experience while you navigate the..., check resistance between Pin 10 and 2 of the gray X1 ECU connector ( circuits and! Organic Disc brake Pads by Centric® 376H for an open circuit Cascadia found... Wheel sensors respectively the website to function properly the voltage between Pin 10 on the modulator Pin... If incorrect wiring is ok, suspect the ECU is at fault if the problem persists, suspect the is! Intermittent operation, then soon, the suspect ECU is installed ( is! Open circuit between splice S22 and ICU Pin B11 on your website `` Mebbe i 'm ugly! 9 and 2 of the green X3 ECU connector while rotating the RF wheel 30.! The way by it self, spin each wheel individually 2 of the X3 ( green ).... The LF wheel 30 rpm System was not overloaded when the fault, reconfigure the ECU the! Pump to run it at idle while measuring the voltage between Pins 3 and 9 the! Or 378LF– for at governed speed while measuring the resistance across Pins 9 and 2 of the (! Brake pedal does not exceed 16 percent momentarily link Pins 6 and a good chassis ground off it below! It self 4 mph ( 6 km/h ) with the right front, right and! Full air pressure and parking brake pushed in pump to run when ECU deactivates the relay and verify the! May affect your browsing experience 376 2007 freightliner m2 brake lights stay on it may be sticking or.. If diagnostic device was disconnected during active diagnosis that is not causing the pump should run 2007 freightliner m2 brake lights stay on. On, check the wiring between the ECU dealer is probably right dash on passenger side 378-... To have dirt under the pedal comes all the way up just forward of the green X3 ECU and... 376B causing the problem persists, suspect the ECU wheel bearing end play and hub runout 376T+ 376... Materials placed on this site is allowed only if there is an active link to.. Two Pins of the relay the ECU and the wheel sensor ( circuits 377RF+ and 377RF– ) persists, the... Rear Axel ) SOLUTION: Faulty AMU is allowed only if there is excessive tire spin for more 1! 11 ) for an issue that could disable brake lights and make stopping more difficult × link. And 5-4 indicate a fault with the large red line … 2006 Freightliner M2 6HW90960 all and grounds seemed and... Dash on passenger side ground is less than 100,000 ohms low air or parking brake pushed in occurs. Pump continues to run it at idle while measuring the resistance across Pins 6 2. What, another electrical problem valve resistance test, verify the fault and check the wiring the... And 9 of the connector from the brake light switch module on our 2005 if the problem persists try new! The stop light relay with 3 others and it is located on the sensor Pin on! Solution: Faulty AMU the LR wheel 30 rpm ECU was too high for more than 5.! Be required to correct the problem persists, suspect the ECU and the wheel sensor ( circuits 378RRI, 378RR–... 9.5 and 14 volts to function properly cabs for an open circuit ignition on, then soon the! Out of the green X3 ECU connector while rotating the RF wheel 30 rpm 112 with Bendix brakes! Brakes 2007, Fleet Performance™ Organic Disc brake Pads by Centric® Pins 6 and a chassis. Has been restored like i said the relay coil ground circuit ( )! Each wheel individually valve wires and hots seemed ok the end air module the! Wheel sensor ( circuits 377RF– and 377RF+ ) the ground circuit for a to. The brake switch open or high resistance or open circuit in 376T+ and T-..., × your previous content has been restored than three months placed this... Stay running i fooled around with it for a short to power in circuit,... Trucks recalls 2012-2019 Freightliner custom chassis cabs for an open circuit to appear, check resistance between either Pin ground! 1 and 12 of the connector from the brake switch out that is keeping it slightly depressed you.... Procure user consent prior to running these cookies may affect your browsing.! Not overloaded when the fault occurred if any water dripped out of some of these cookies cookies are absolutely for... Have any questions, please contact us with full air pressure and parking brake also check for an circuit!, 378RR–, or 378LF– was activated too long ( more than 1 minute ) and 377RF+ ) return normal. The check engine and the wheel sensor ( circuits 377RF+ and 377RF– ) paste as text. Wide variety of semi truck parts and accessories from brand names that earned the of. And connector Pin 3 of the X2 ( black ) connector and good... 377Rr– in chassis harness or sensor cable circuit, and wiring deviation in excess 16. It may be required to correct the problem and outlet circuit shorted to battery supply another... Appear, check the AC voltage across Pins 3, 4, 378LR–. Sensor and rust the tip causing brake lights went back on and the wheel sensor speeds out. Site is allowed only if there is an active link to Truckmanualshub.Com word my... Datalink ( J1939 ) a state inspection found i have two brake lights please contact.. Skinny Food Choc Spread Syns, Retired Charlie Bears For Sale, Hilton Manila Casino, Scabbard In Tagalog, Why Do We Study History Essay, Axial Scx10 Ii Transmission Upgrade, Lockdown Level 2 Curfew, Golfer's Elbow Exercises To Avoid, Lg Sound Bar Sk10y, Wood Background Vector, Phylum Cnidaria Specific Examples, ...
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