P1B04
Drive Motor 2 Position Sensor Circuit Loss of Tracking
P1B04 is an OBD-II diagnostic trouble code meaning: Drive Motor 2 Position Sensor Circuit Loss of Tracking. Common causes: engine position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Switching to emergency mode
- Unusual noises from the electric motor
- Problems with regenerative braking
Causes
- Engine position sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Problems with the control unit
How to Fix
- Check the resistance of the position sensor
- Inspect the sensor circuit for damage
- Check the quality of contacts in the connectors
- Scan the control unit for errors
- If necessary, replace the sensor or repair the wiring
Related codes
FAQ
What does the P1B04 code mean?
P1B04 is an OBD-II diagnostic trouble code that indicates: Drive Motor 2 Position Sensor Circuit Loss of Tracking
What causes a P1B04 error code?
The most common causes of P1B04 include: Engine position sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a P1B04 diagnostic trouble code?
To fix P1B04: Check the resistance of the position sensor. Inspect the sensor circuit for damage. Check the quality of contacts in the connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B04?
Limited driving only, diagnose soon
How much does it cost to fix P1B04?
The estimated repair cost for P1B04 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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