Network
generic / SAE
U0145
Lost Communication with Restraints Control Module Auxiliary
A secondary or auxiliary airbag/restraints controller (e.g. for rear or curtain bags) has stopped responding. The airbag warning lamp lights up and parts of the restraint system may be disabled.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 45
Possible causes
- Auxiliary restraint module failed medium
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec 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: 200–1500 €
- Estimated time: 1–4 h
- Component: auxiliary restraint module
- Component: can bus wiring
Sources
References
sae:J2012