P1E1C
Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 1 Low Voltage
P1E1C is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 1 Low Voltage. Common causes: hybrid battery isolation sensor malfunction, damaged or corroded wiring. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- The car goes into emergency mode
- Reduced hybrid system efficiency
- Alerts appearing on the dashboard
- Possible problems with gear shifting
Causes
- Hybrid Battery Isolation Sensor Malfunction
- Damaged or corroded wiring
- Problems with the auxiliary pump control module
- Low voltage in the electrical system
- Circuit Grounding Problems
How to Fix
- Check the condition of the wiring and connectors in the sensor circuit
- Test Hybrid Battery Isolation Sensor
- Check supply voltage and circuit grounding
- Diagnose the auxiliary pump control module
- If necessary, replace faulty components
Related codes
FAQ
What does the P1E1C code mean?
P1E1C is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 1 Low Voltage
What causes a P1E1C error code?
The most common causes of P1E1C include: Hybrid Battery Isolation Sensor Malfunction; Damaged or corroded wiring; Problems with the auxiliary pump control module; Low voltage in the electrical system.
How do I fix a P1E1C diagnostic trouble code?
To fix P1E1C: Check the condition of the wiring and connectors in the sensor circuit. Test Hybrid Battery Isolation Sensor. Check supply voltage and circuit grounding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1E1C?
Limited driving only, diagnose soon
How much does it cost to fix P1E1C?
The estimated repair cost for P1E1C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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