OBD Guide

P0AEC

Hybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic

P0AEC is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic. Common causes: poor contact in the sensor connector, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Hybrid system power reduction
  • Unstable battery performance
  • Check Engine light comes on
  • Reduced charge efficiency
  • Possible problems with regenerative braking

Causes

  • Poor contact in the sensor connector
  • Open or short circuit in the sensor circuit
  • Malfunction of the temperature sensor itself
  • Wiring Harness Problems
  • Battery management module malfunction

How to Fix

  1. Check temperature sensor connections
  2. Test the sensor circuit for open circuit and short circuit
  3. Check the resistance of the temperature sensor
  4. Replace temperature sensor if necessary
  5. Update battery management module software

Related codes

Error P0AEC by Vehicle Brand

FAQ

What does the P0AEC code mean?

P0AEC is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic

What causes a P0AEC error code?

The most common causes of P0AEC include: Poor contact in the sensor connector; Open or short circuit in the sensor circuit; Malfunction of the temperature sensor itself; Wiring Harness Problems.

How do I fix a P0AEC diagnostic trouble code?

To fix P0AEC: Check temperature sensor connections. Test the sensor circuit for open circuit and short circuit. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0AEC?

Yes, but get it checked soon

How much does it cost to fix P0AEC?

The estimated repair cost for P0AEC is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat