OBD-II code · Network
U046E Invalid Data Received From Exhaust Gas Sensor Module B
A receiving module detected implausible data from exhaust gas sensor module B (smart wide-range O2 / lambda module). Lambda or pumping current values fail plausibility checks and are rejected.
Is it safe to drive with U046E?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Exhaust Gas Sensor Module B
Related codes
- U041BInvalid Data Received From Exhaust Gas Sensor Module A
- U046BInvalid Data Received From Global Positioning System Module
- U046CInvalid Data Received From A/C Compressor Control Module
- U046DInvalid Data Received From Fuel Pump Control Module B
- U0471Invalid Data Received From Restraints System Sensor A
- U0472Invalid Data Received From Restraints System Sensor B
- U0473Invalid Data Received From Restraints System Sensor C
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.