Network
generic / SAE
U0144
Lost Communication with Personalization Module "B"
The Personalization Module "B" has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Driver-profile settings (seats, mirrors, presets) are not applied. 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 / 44
Possible causes
- Personalization module unpowered high
- CAN wiring to personalization 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: medium
- DIY: shop recommended
- Estimated cost: 60–700 €
- Estimated time: 0.5–3 h
- Component: personalization module
- Component: can bus wiring
Sources
References
sae:J2012