P0886
TCM Power Relay Control Circuit Low
P0886 is an OBD-II diagnostic trouble code meaning: TCM Power Relay Control Circuit Low. Common causes: faulty tcm power relay, open or short circuit in the relay control circuit. Estimated repair cost: $17–56.
Symptoms
- Unstable gearbox operation
- Difficulty shifting gears
- Check Engine Light Is On
- The gearbox goes into emergency mode
- Loss of engine power
Causes
- Faulty TCM power relay
- Open or short circuit in the relay control circuit
- Poor contact in control circuit connectors
- Transmission control module (TCM) malfunction
- TCM power or ground problems
How to Fix
- Check TCM power relay for faults
- Check the integrity of the relay control circuit
- Inspect connectors and contacts for corrosion or damage
- Check voltage and ground at TCM
- Replace relay or TCM if necessary
Related codes
Error P0886 by Vehicle Brand
FAQ
What does the P0886 code mean?
P0886 is an OBD-II diagnostic trouble code that indicates: TCM Power Relay Control Circuit Low
What causes a P0886 error code?
The most common causes of P0886 include: Faulty TCM power relay; Open or short circuit in the relay control circuit; Poor contact in control circuit connectors; Transmission control module (TCM) malfunction.
How do I fix a P0886 diagnostic trouble code?
To fix P0886: Check TCM power relay for faults. Check the integrity of the relay control circuit. Inspect connectors and contacts for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0886?
Limited driving only, diagnose soon
How much does it cost to fix P0886?
The estimated repair cost for P0886 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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