OBD-II code · Network
U0176 Lost Communication With Restraints System Sensor G
ECU lost CAN/dedicated-bus communication with restraints system sensor G (airbag/seatbelt sensor). 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 U0176?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor unpowered or wiring 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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Restraints Sensor G, Can Bus
Related codes
- U0174Lost Communication With Restraints System Sensor E
- U0175Lost Communication With Restraints System Sensor F
- U0178Lost Communication With Restraints System Sensor I
- U017ALost Communication With Restraints System Sensor K
- U017BLost Communication With Restraints System Sensor L
- U017CLost Communication With Restraints System Sensor M
- U017DLost Communication With Restraints System Sensor N
- U0173Communication Bus "C" Off
- U0177Lost Communication with Mirror Memory Module
- U0179Lost Communication with Power Liftgate Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.