P1A6B
Starter/Generator Control Module 5 Volt Reference Circuit
P1A6B is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module 5 Volt Reference Circuit. Common causes: open or short circuit in 5v circuit, poor contact in the control module connectors. Estimated repair cost: $33–167.
Symptoms
- Problems starting the engine
- Check Engine Light Is On
- Unstable generator operation
- Reduced voltage in the on-board network
- Errors in other systems using the same reference voltage
Causes
- Open or short circuit in 5V circuit
- Poor contact in the control module connectors
- Starter/Generator Control Module Malfunction
- Wiring harness damage
- Blown fuse
How to Fix
- Check the continuity of the 5V circuit using a multimeter
- Inspect the control module connectors and contacts for corrosion or damage.
- Check fuses associated with the system
- Test the starter/generator control module
- If necessary, replace the control module or repair the wiring
Related codes
FAQ
What does the P1A6B code mean?
P1A6B is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module 5 Volt Reference Circuit
What causes a P1A6B error code?
The most common causes of P1A6B include: Open or short circuit in 5V circuit; Poor contact in the control module connectors; Starter/Generator Control Module Malfunction; Wiring harness damage.
How do I fix a P1A6B diagnostic trouble code?
To fix P1A6B: Check the continuity of the 5V circuit using a multimeter. Inspect the control module connectors and contacts for corrosion or damage.. Check fuses associated with the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A6B?
Limited driving only, diagnose soon
How much does it cost to fix P1A6B?
The estimated repair cost for P1A6B is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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