P09A1
Shift Solenoid H Control Circuit/Open
P09A1 is an OBD-II diagnostic trouble code meaning: Shift Solenoid H Control Circuit/Open. Common causes: solenoid h control circuit open, short circuit in the circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect gear shifting
- Transmission of the gearbox into emergency mode
- Check Engine light comes on
- Reduced vehicle dynamics
- Increased fuel consumption
Causes
- Solenoid H control circuit open
- Short circuit in the circuit
- Solenoid H fault
- Poor contact in solenoid connector
- Transmission control module (TCM) problems
How to Fix
- Check continuity of solenoid H control circuit
- Check the resistance of solenoid H
- Inspect connectors and contacts for corrosion
- If necessary, replace solenoid H
- Check the operation of the transmission control unit
Related codes
Error P09A1 by Vehicle Brand
FAQ
What does the P09A1 code mean?
P09A1 is an OBD-II diagnostic trouble code that indicates: Shift Solenoid H Control Circuit/Open
What causes a P09A1 error code?
The most common causes of P09A1 include: Solenoid H control circuit open; Short circuit in the circuit; Solenoid H fault; Poor contact in solenoid connector.
How do I fix a P09A1 diagnostic trouble code?
To fix P09A1: Check continuity of solenoid H control circuit. Check the resistance of solenoid H. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P09A1?
Limited driving only, diagnose soon
How much does it cost to fix P09A1?
The estimated repair cost for P09A1 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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