Network
generic / SAE
U05AC
Invalid Data Received From Vehicle Thermal Management Control Module
A receiving module detected implausible data from the vehicle thermal management module. Coolant loop coordination values fail plausibility checks and are rejected; sub-modules may revert to local control.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number5 / AC
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: 200–1800 €
- Estimated time: 1–4 h
- Component: thermal management module
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012