P1A90
14 Volt Power Module Temperature Sensor 1 Performance
P1A90 is an OBD-II diagnostic trouble code meaning: 14 Volt Power Module Temperature Sensor 1 Performance. Common causes: temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Incorrect operation of the start-stop system
- Power module overheating
- Error messages on the dashboard
Causes
- Temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Power module fault
- Wiring Harness Problems
How to Fix
- Check the condition of the temperature sensor
- Check the integrity of the sensor circuit
- Inspect connectors for corrosion or damage
- Replace temperature sensor if necessary
- Check the operation of the power module
Related codes
FAQ
What does the P1A90 code mean?
P1A90 is an OBD-II diagnostic trouble code that indicates: 14 Volt Power Module Temperature Sensor 1 Performance
What causes a P1A90 error code?
The most common causes of P1A90 include: Temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Power module fault.
How do I fix a P1A90 diagnostic trouble code?
To fix P1A90: Check the condition of the temperature sensor. Check the integrity of the sensor circuit. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A90?
Yes, but get it checked soon
How much does it cost to fix P1A90?
The estimated repair cost for P1A90 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat