OBD-II code · Network
U008E Vehicle Communication Bus G (-) Open
Bus G low-side line open. A communication loss with this module breaks any function relying on its data — diagnostic tools may show 'no response' and dependent modules can fall into limp mode.
Is it safe to drive with U008E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWire broken
- Less likelyGateway module routing CAN messages incorrectly
- Less likelyCAN terminating resistor (120 Ω) drifted out of spec
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
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Bus G Wiring
Related codes
- U0033Vehicle Communication Bus A (-) Open
- U0051Vehicle Communication Bus C (-) Open
- U0069Vehicle Communication Bus E (-) Open
- U0097Vehicle Communication Bus H (-) Open
- U008BVehicle Communication Bus G (+) Open
- U008CVehicle Communication Bus G (+) Low
- U008DVehicle Communication Bus G (+) High
- U008FVehicle Communication Bus G (-) Low
- U0090Vehicle Communication Bus G (-) High
- U0091CAN Communication Bus "C" Off
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.