P1765
Transmission 12V Supply Relay Control Conditions
P1765 is an OBD-II diagnostic trouble code meaning: Transmission 12V Supply Relay Control Conditions. Common causes: faulty automatic transmission power relay, open or short circuit in the relay control circuit. Estimated repair cost: $17–111.
Symptoms
- Delayed gear shifting
- The gearbox goes into emergency mode
- Check engine light comes on
- Malfunction of automatic transmission solenoids
Causes
- Faulty automatic transmission power relay
- Open or short circuit in the relay control circuit
- Poor contact in connectors
- Transmission control module (TCM) malfunction
- Power or grounding problems
How to Fix
- Check the automatic transmission power relay and replace if necessary
- Check the relay control circuit for opens and shorts
- Inspect and clean all connectors in the circuit
- Check the power supply and grounding of the control unit
- If necessary, replace the transmission control unit
Related codes
Error P1765 by Vehicle Brand
FAQ
What does the P1765 code mean?
P1765 is an OBD-II diagnostic trouble code that indicates: Transmission 12V Supply Relay Control Conditions
What causes a P1765 error code?
The most common causes of P1765 include: Faulty automatic transmission power relay; Open or short circuit in the relay control circuit; Poor contact in connectors; Transmission control module (TCM) malfunction.
How do I fix a P1765 diagnostic trouble code?
To fix P1765: Check the automatic transmission power relay and replace if necessary. Check the relay control circuit for opens and shorts. Inspect and clean all connectors in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1765?
Limited driving only, diagnose soon
How much does it cost to fix P1765?
The estimated repair cost for P1765 is $17–111. Actual cost depends on your vehicle, location, and labor rates.
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