OBD Guide

P0ACE

Hybrid/EV Battery Temperature Sensor C Circuit Intermittent/Erratic

P0ACE is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Temperature Sensor C Circuit Intermittent/Erratic. Common causes: damage to the sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Unstable battery temperature readings
  • Hybrid system power reduction
  • Extended charging time
  • Check engine light comes on
  • Reduced performance of the hybrid system

Causes

  • Damage to the sensor wiring harness
  • Poor contact in the sensor connector
  • Temperature sensor fault C
  • Problems with the battery management module
  • Corrosion of contacts in the sensor circuit

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Clean and check contacts in connectors
  3. Test the temperature sensor with a multimeter
  4. Replace faulty temperature sensor
  5. Check the operation of the battery management module

Related codes

Error P0ACE by Vehicle Brand

FAQ

What does the P0ACE code mean?

P0ACE is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Temperature Sensor C Circuit Intermittent/Erratic

What causes a P0ACE error code?

The most common causes of P0ACE include: Damage to the sensor wiring harness; Poor contact in the sensor connector; Temperature sensor fault C; Problems with the battery management module.

How do I fix a P0ACE diagnostic trouble code?

To fix P0ACE: Check the integrity of the sensor wiring harness. Clean and check contacts in connectors. Test the temperature sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0ACE?

Limited driving only, diagnose soon

How much does it cost to fix P0ACE?

The estimated repair cost for P0ACE is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat