P0A42
Drive Motor A Position Sensor Circuit High
P0A42 is an OBD-II diagnostic trouble code meaning: Drive Motor A Position Sensor Circuit High. Common causes: engine position sensor a fault, open or short circuit in the sensor circuit. Estimated repair cost: $33–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- The car goes into emergency mode
- Unstable engine operation
- Problems starting the engine
Causes
- Engine position sensor A fault
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Engine control module malfunction
- Circuit Grounding Problems
How to Fix
- Check the integrity of the sensor wiring and connectors
- Measure resistance and voltage at the sensor
- Check circuit grounding
- Replace motor position sensor A if necessary
- Scan the system for other fault codes
Related codes
Error P0A42 by Vehicle Brand
FAQ
What does the P0A42 code mean?
P0A42 is an OBD-II diagnostic trouble code that indicates: Drive Motor A Position Sensor Circuit High
What causes a P0A42 error code?
The most common causes of P0A42 include: Engine position sensor A fault; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Engine control module malfunction.
How do I fix a P0A42 diagnostic trouble code?
To fix P0A42: Check the integrity of the sensor wiring and connectors. Measure resistance and voltage at the sensor. Check circuit grounding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0A42?
Do not drive — repair immediately
How much does it cost to fix P0A42?
The estimated repair cost for P0A42 is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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