W164 many CAN codes and ESP
#1
Junior Member
Thread Starter
W164 many CAN codes and ESP
2006 ml320. V6 diesel, rhd.
Symptoms:
1. After about 300m of driving, ESP inactive, abs inactive, tire pressure mon inactive warnings on dash. This has happened about 5 times.
2. When pulling away this morning, would not accelerate. Reverse then drive and all good again. little power. Only happened once.
3. Sometimes the red warning "drive to dealership without shifting gear" comes up
4. Sometimes when driving away can feel slight pulsing like the car is testing the brakes. Just the slightest roughness.
5. Car voltage seems fine, but put charger on it and dodgy charger says 25% battery charge. Charged overnight regardless and the next day faults did not occur.
6. Steering column housing is solid, not broken.
My theories:
1. These symptoms point to wheel speed sensor(s), but there are no codes associated with those at all. Would not explain the Can codes.
2. Aftermarket trailer wiring was fitted about 12 months ago. Throws a dash error on right rear blinker occasionally . This could be affecting can bus. Disconnect and check, but odd now.
3. Low battery, and aux battery dear so ism throws faults.
4. A break in the can-bus somewhere?
5. A module is messing with the can-bus. But which one?
6. Can bus is grounded causing errors as battery drain
Codes:
C141 - CAN N73 N93
C126 - N80
C103 - A80 ISM, N15/5 ESM
C001 communication fault
1708 A80 limp home, can off
C155 AI can failure
C002 Can off
1944 N80 cannot move from position P
1919 can off
1917 can off
CDI - some of these CDI codes are old, I cannot clear CDI codes.
2211-11 no can ETC
2244-1 no can A1
2201-1 no can N73 (EIS)
2210-1 no can A80, N15/5
2243-1 no can N93
2213-1 no can N80
2511-1 y27/9 left egr
2510-1 Y77/1 boost reg
2616-2 B60 exh back pressure sensor (likely old)
2137-4 glowplug 5 open (current)
5026 no can transmission control
5318 can N93 CGU
5060 can fault
5316 can N80
903E
900D
904A coolant low - fixed
9062 aux battery - known issue for years. Ignoring happily.
9132 right turn rear short to ground - has been an issue since installing trailer wiring. Mostly disconnected now
9100 instrument cluster not transmitting. Can off
910F CGU not sending
910D ISM not sending
9103 transmission control not sending
9109 airbag not sending
910B left tensioner not sending
910C right tensioner not sending
910E SCM (MRW) not sending
SCM
9345 can fault EIS
9346 can fault instrument cluster
9354 can fault CGU
9348 can fault engine databus
Symptoms:
1. After about 300m of driving, ESP inactive, abs inactive, tire pressure mon inactive warnings on dash. This has happened about 5 times.
2. When pulling away this morning, would not accelerate. Reverse then drive and all good again. little power. Only happened once.
3. Sometimes the red warning "drive to dealership without shifting gear" comes up
4. Sometimes when driving away can feel slight pulsing like the car is testing the brakes. Just the slightest roughness.
5. Car voltage seems fine, but put charger on it and dodgy charger says 25% battery charge. Charged overnight regardless and the next day faults did not occur.
6. Steering column housing is solid, not broken.
My theories:
1. These symptoms point to wheel speed sensor(s), but there are no codes associated with those at all. Would not explain the Can codes.
2. Aftermarket trailer wiring was fitted about 12 months ago. Throws a dash error on right rear blinker occasionally . This could be affecting can bus. Disconnect and check, but odd now.
3. Low battery, and aux battery dear so ism throws faults.
4. A break in the can-bus somewhere?
5. A module is messing with the can-bus. But which one?
6. Can bus is grounded causing errors as battery drain
Codes:
C141 - CAN N73 N93
C126 - N80
C103 - A80 ISM, N15/5 ESM
C001 communication fault
1708 A80 limp home, can off
C155 AI can failure
C002 Can off
1944 N80 cannot move from position P
1919 can off
1917 can off
CDI - some of these CDI codes are old, I cannot clear CDI codes.
2211-11 no can ETC
2244-1 no can A1
2201-1 no can N73 (EIS)
2210-1 no can A80, N15/5
2243-1 no can N93
2213-1 no can N80
2511-1 y27/9 left egr
2510-1 Y77/1 boost reg
2616-2 B60 exh back pressure sensor (likely old)
2137-4 glowplug 5 open (current)
5026 no can transmission control
5318 can N93 CGU
5060 can fault
5316 can N80
903E
900D
904A coolant low - fixed
9062 aux battery - known issue for years. Ignoring happily.
9132 right turn rear short to ground - has been an issue since installing trailer wiring. Mostly disconnected now
9100 instrument cluster not transmitting. Can off
910F CGU not sending
910D ISM not sending
9103 transmission control not sending
9109 airbag not sending
910B left tensioner not sending
910C right tensioner not sending
910E SCM (MRW) not sending
SCM
9345 can fault EIS
9346 can fault instrument cluster
9354 can fault CGU
9348 can fault engine databus
#2
Super Member
With the number of codes you have, I think you may need a main battery replacement. How old is your current battery?
You may also have a faulty wheel speed sensor, but if you're not seeing a fault related to one or more, it is not likely. I would start with the battery.
I had a low battery and faulty wheel speed sensor at the same time, experienced similar symptoms (lots of unrelated codes, also had a code for the sensor).
You may also have a faulty wheel speed sensor, but if you're not seeing a fault related to one or more, it is not likely. I would start with the battery.
I had a low battery and faulty wheel speed sensor at the same time, experienced similar symptoms (lots of unrelated codes, also had a code for the sensor).
#3
Junior Member
Thread Starter
Disconnecting modules in sequence found when the ISM was disconnected all the can bus codes went away. So the the ism appears to be it.
anyone know if the ism needs to be online coded, how much that is, can I do it with a Chinese sd connect???
anyone know if the ism needs to be online coded, how much that is, can I do it with a Chinese sd connect???
#4
MBWorld Fanatic!
You probably have a Parasitic Draw on the battery which is causing all of these codes. You must slow charge the main battery overnight to 12.7 volts and then while the car is not used, monitor the voltage to see if the it steadily drops below 12.7.