P1AC1
Starter/Generator Control Module Cooling Fan Relay Control Circuit Low Voltage
P1AC1 is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module Cooling Fan Relay Control Circuit Low Voltage. Common causes: control circuit wiring problems, faulty fan relay. Estimated repair cost: $17–56.
Symptoms
- Starter/generator module overheating
- Cooling fan malfunction
- Reduced starter/generator efficiency
- Check Engine light comes on
Causes
- Control circuit wiring problems
- Faulty fan relay
- Damaged starter/generator module
- Short circuit in the circuit
How to Fix
- Check the integrity of the control circuit wiring
- Check the operation of the fan relay
- Diagnose the starter/generator module
- Replace faulty components
Related codes
FAQ
What does the P1AC1 code mean?
P1AC1 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module Cooling Fan Relay Control Circuit Low Voltage
What causes a P1AC1 error code?
The most common causes of P1AC1 include: Control circuit wiring problems; Faulty fan relay; Damaged starter/generator module; Short circuit in the circuit.
How do I fix a P1AC1 diagnostic trouble code?
To fix P1AC1: Check the integrity of the control circuit wiring. Check the operation of the fan relay. Diagnose the starter/generator module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1AC1?
Yes, but get it checked soon
How much does it cost to fix P1AC1?
The estimated repair cost for P1AC1 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat