Network
generic / SAE
U045C
Invalid Data Received From Power Steering Control Module B
A receiving module detected implausible data from power steering control module B. Steer-assist torque or motor current values fail plausibility checks and are rejected; assist may reduce or fail to a fail-safe map.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number4 / 5C
Possible causes
- Module internal fault or sensor input drift high
- Software version mismatch after replacement 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: 400–3000 €
- Estimated time: 1–5 h
- Component: power steering module b
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012