P1A73
14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
P1A73 is an OBD-II diagnostic trouble code meaning: 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage. Common causes: malfunction of the 14v module temperature sensor, broken or damaged wires in the sensor circuit. Estimated repair cost: $28–94.
Symptoms
- Check Engine Light Is On
- Possible problems with battery charging
- Limitation of hybrid system operation
- Incorrect system voltage readings
- Reduced vehicle performance
Causes
- Malfunction of the 14V module temperature sensor
- Broken or damaged wires in the sensor circuit
- Short circuit in the sensor circuit
- Problems with the 14V power module
- ECU malfunction or connection problems
How to Fix
- Check the continuity of the temperature sensor circuit
- Measure resistance and voltage at the sensor
- Check connectors and connections for corrosion or damage
- If necessary, replace the temperature sensor
- Check the operation of the 14V power module itself
- Repair only from an authorized dealer (for hybrid systems)
Related codes
FAQ
What does the P1A73 code mean?
P1A73 is an OBD-II diagnostic trouble code that indicates: 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
What causes a P1A73 error code?
The most common causes of P1A73 include: Malfunction of the 14V module temperature sensor; Broken or damaged wires in the sensor circuit; Short circuit in the sensor circuit; Problems with the 14V power module.
How do I fix a P1A73 diagnostic trouble code?
To fix P1A73: Check the continuity of the temperature sensor circuit. Measure resistance and voltage at the sensor. Check connectors and connections for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A73?
Limited driving only, diagnose soon
How much does it cost to fix P1A73?
The estimated repair cost for P1A73 is $28–94. Actual cost depends on your vehicle, location, and labor rates.
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