OBD Guide

P2AC8

Charge Air Cooler Coolant Temperature Sensor B Circuit Range/Performance

P2AC8 is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Coolant Temperature Sensor B Circuit Range/Performance. Common causes: intercooler coolant temperature sensor fault b, 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

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • The engine goes into emergency mode
  • Unstable engine operation at idle

Causes

  • Intercooler coolant temperature sensor fault B
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the connectors and contacts of the sensor
  3. Test the sensor with a multimeter
  4. Replace sensor if necessary
  5. Reset the error code and check if it returns

Related codes

Error P2AC8 by Vehicle Brand

FAQ

What does the P2AC8 code mean?

P2AC8 is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Coolant Temperature Sensor B Circuit Range/Performance

What causes a P2AC8 error code?

The most common causes of P2AC8 include: Intercooler coolant temperature sensor fault B; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P2AC8 diagnostic trouble code?

To fix P2AC8: Check the integrity of the sensor circuit. Check the connectors and contacts of the sensor. Test the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2AC8?

Yes, but get it checked soon

How much does it cost to fix P2AC8?

The estimated repair cost for P2AC8 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat