B142A
Ignition Voltage
B142A is an OBD-II diagnostic trouble code meaning: Ignition Voltage. Common causes: broken or damaged wiring harness, malfunction of the control unit for the passive safety system. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- Unstable engine operation
- Problems starting the engine
Causes
- Broken or damaged wiring harness
- Malfunction of the control unit for the passive safety system
- Short circuit in the circuit
- Airbag squib malfunction
How to Fix
- Check the integrity of the wiring harness
- Check the contacts in the passive restraint system connectors
- Diagnose the security control unit
- Check the voltage on the squibs
Related codes
FAQ
What does the B142A code mean?
B142A is an OBD-II diagnostic trouble code that indicates: Ignition Voltage
What causes a B142A error code?
The most common causes of B142A include: Broken or damaged wiring harness; Malfunction of the control unit for the passive safety system; Short circuit in the circuit; Airbag squib malfunction.
How do I fix a B142A diagnostic trouble code?
To fix B142A: Check the integrity of the wiring harness. Check the contacts in the passive restraint system connectors. Diagnose the security control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B142A?
Do not drive — repair immediately
How much does it cost to fix B142A?
The estimated repair cost for B142A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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