Network
generic / SAE
U0110
Lost Communication with Drive Motor Control Module
The Drive Motor Control Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. On a hybrid or EV the electric drive can shut down or limit power. Typical causes are loss of power or ground at the module, an open or shorted CAN/LIN bus wire, a connector fault, or an internal module failure.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 10
Possible causes
- Drive motor module unpowered high
- CAN wiring to drive motor module broken medium
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–3000 €
- Estimated time: 2–10 h
- Component: drive motor control module
- Component: can bus wiring
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012