B1040
Crash Zone Sensor
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)
Symptoms
- Airbag light is on
- System does not activate airbags during testing
- Error persists after reset
Causes
- Mechanical damage to the sensor
- Open or short circuit in wiring harness
- Contact corrosion
- Incorrect programming after module replacement
How to Fix
- Visual checker and wiring harness
- Checking the sensor resistance
- Diagnosis of power supply and ground circuits
- Replace the sensor if necessary
- Resetting the error and testing the system