U0170
Lost Communication With Restraints System Sensor A
Severity
HIGH
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–167 (est.)
Symptoms
- Airbag light (SRS) is on
- SRS system does not respond to diagnostics
- Security error message on display
- Belt pretensioners may not work
Causes
- Broken or damaged wires to the sensor
- Oxidation of contacts in connectors
- Security sensor malfunction
- Problems with the SRS module
- Short circuit in the circuit
How to Fix
- Check the integrity of the wiring harness to the sensor
- Clean the contacts in the sensor connectors
- Check sensor resistance according to specification
- Scan the SRS module for additional errors
- Repair only from an authorized dealer