C0805
Control Module Power 2 Circuit
C0805 is an OBD-II diagnostic trouble code meaning: Control Module Power 2 Circuit. Common causes: broken or damaged wiring harness, poor contact in connectors. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Problems starting the engine
- Check Engine Light Is On
- Failure of individual vehicle systems
Causes
- Broken or damaged wiring harness
- Poor contact in connectors
- Faulty relay or fuse
- Battery or alternator problems
How to Fix
- Check the condition of the battery and generator
- Inspect the wiring harness for damage
- Check the contacts in the control module connectors
- Replace faulty relays or fuses
- Test the control module for faults
Related codes
Error C0805 by Vehicle Brand
FAQ
What does the C0805 code mean?
C0805 is an OBD-II diagnostic trouble code that indicates: Control Module Power 2 Circuit
What causes a C0805 error code?
The most common causes of C0805 include: Broken or damaged wiring harness; Poor contact in connectors; Faulty relay or fuse; Battery or alternator problems.
How do I fix a C0805 diagnostic trouble code?
To fix C0805: Check the condition of the battery and generator. Inspect the wiring harness for damage. Check the contacts in the control module connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0805?
Limited driving only, diagnose soon
How much does it cost to fix C0805?
The estimated repair cost for C0805 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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