Network
generic / SAE
U04BD
Invalid Data Received From Park Lock/Pawl Control Module
A receiving module detected implausible data from the park lock/pawl control module (electric park-pawl actuator on shift-by-wire transmissions). Engaged/released state values fail plausibility checks and are rejected.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number4 / BD
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: 300–2500 €
- Estimated time: 1–5 h
- Component: park lock module
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012