OBD-II code · Network
U0451 Invalid Data Received From Serial Data Gateway Module E
A receiving module detected implausible data from serial data gateway E. Bridged messages between sub-buses (CAN/LIN/FlexRay/Ethernet) fail plausibility checks and are rejected.
Is it safe to drive with U0451?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Gateway Module E
Related codes
- U0449Invalid Data Received From Serial Data Gateway Module C
- U044AInvalid Data Received From Serial Data Gateway Module D
- U044CInvalid Data Received From Hybrid/EV Battery Inductive Charging Module
- U044DInvalid Data Received From Generator B Control Module
- U044FInvalid Data Received From Mirror Control Module B
- U0452Invalid Data Received From Restraints Control Module
- U0453Invalid Data Received From Side Restraints Control Module — Left
- U0454Invalid Data Received From Side Restraints Control Module — Right
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.