P1A9C
Starter/Generator Inverter Phase U Temperature Sensor Circuit Low Voltage
P1A9C is an OBD-II diagnostic trouble code meaning: Starter/Generator Inverter Phase U Temperature Sensor Circuit Low Voltage. Common causes: phase u temperature sensor fault, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Problems starting the engine
- Reduced performance of the hybrid system
- Switching to emergency mode
- Error messages on the display
Causes
- Phase U temperature sensor fault
- Open or short circuit in the sensor circuit
- Poor contact in connectors
- Problems with the starter-generator inverter
- Control unit malfunction
How to Fix
- Check the continuity of the temperature sensor circuit
- Check connections and connectors
- Test the temperature sensor
- Check the operation of the starter-generator inverter
- If necessary, replace the sensor or inverter
Related codes
FAQ
What does the P1A9C code mean?
P1A9C is an OBD-II diagnostic trouble code that indicates: Starter/Generator Inverter Phase U Temperature Sensor Circuit Low Voltage
What causes a P1A9C error code?
The most common causes of P1A9C include: Phase U temperature sensor fault; Open or short circuit in the sensor circuit; Poor contact in connectors; Problems with the starter-generator inverter.
How do I fix a P1A9C diagnostic trouble code?
To fix P1A9C: Check the continuity of the temperature sensor circuit. Check connections and connectors. Test the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A9C?
Yes, but get it checked soon
How much does it cost to fix P1A9C?
The estimated repair cost for P1A9C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat