P2D66
Battery Charging System Negative Contactor C Control Circuit Range/Performance
P2D66 is an OBD-II diagnostic trouble code meaning: Battery Charging System Negative Contactor C Control Circuit Range/Performance. Common causes: negative contactor fault, problems in the contactor control circuit. Estimated repair cost: $33–111.
Symptoms
- Check Engine Light Is On
- Battery charging problems
- Reduced electrical system performance
- Possible problems starting the engine
Causes
- Negative contactor fault
- Problems in the contactor control circuit
- Control unit malfunction
- Poor contacts or corrosion in connectors
- Open or short circuit in wiring harness
How to Fix
- Check the condition of the negative contactor
- Check the integrity of the control circuit
- Check connectors and connections for corrosion
- Scan the control unit for additional errors
- If necessary, replace the negative contactor
Related codes
Error P2D66 by Vehicle Brand
FAQ
What does the P2D66 code mean?
P2D66 is an OBD-II diagnostic trouble code that indicates: Battery Charging System Negative Contactor C Control Circuit Range/Performance
What causes a P2D66 error code?
The most common causes of P2D66 include: Negative contactor fault; Problems in the contactor control circuit; Control unit malfunction; Poor contacts or corrosion in connectors.
How do I fix a P2D66 diagnostic trouble code?
To fix P2D66: Check the condition of the negative contactor. Check the integrity of the control circuit. Check connectors and connections for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2D66?
Yes, but get it checked soon
How much does it cost to fix P2D66?
The estimated repair cost for P2D66 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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