OBD Guide

P1E1E

Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 2 Low Voltage

P1E1E is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 2 Low Voltage. Common causes: open or short circuit in the sensor circuit, insulation sensor fault. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible problems with the operation of the hybrid system
  • Reduced vehicle performance
  • Possible warnings about high voltage system failure
  • The car may go into emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Insulation sensor fault
  • Problems with the auxiliary pump control module
  • Corrosion of contacts in an electrical circuit
  • Problems with high voltage battery

How to Fix

  1. Check the integrity of wiring and connections
  2. Check the voltage in the sensor circuit
  3. Test the insulation sensor
  4. Check auxiliary pump control module
  5. Repair only from an authorized dealer

Related codes

FAQ

What does the P1E1E code mean?

P1E1E is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Control Module Hybrid Battery Voltage Isolation Sensor Circuit 2 Low Voltage

What causes a P1E1E error code?

The most common causes of P1E1E include: Open or short circuit in the sensor circuit; Insulation sensor fault; Problems with the auxiliary pump control module; Corrosion of contacts in an electrical circuit.

How do I fix a P1E1E diagnostic trouble code?

To fix P1E1E: Check the integrity of wiring and connections. Check the voltage in the sensor circuit. Test the insulation sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E1E?

Do not drive — repair immediately

How much does it cost to fix P1E1E?

The estimated repair cost for P1E1E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat