OBD Guide

P2AC7

Charge Air Cooler Coolant Temperature Sensor B Circuit

P2AC7 is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Coolant Temperature Sensor B Circuit. 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
  • Unstable engine operation
  • Errors in the cooling system

Causes

  • Intercooler coolant temperature sensor fault B
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Corroded contacts or damaged wiring
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the connector and contacts for damage
  3. Check sensor resistance at different temperatures
  4. Replace the coolant temperature sensor if necessary
  5. Reset the error code and check if it returns

Related codes

Error P2AC7 by Vehicle Brand

FAQ

What does the P2AC7 code mean?

P2AC7 is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Coolant Temperature Sensor B Circuit

What causes a P2AC7 error code?

The most common causes of P2AC7 include: Intercooler coolant temperature sensor fault B; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corroded contacts or damaged wiring.

How do I fix a P2AC7 diagnostic trouble code?

To fix P2AC7: Check the integrity of the sensor circuit. Inspect the connector and contacts for damage. Check sensor resistance at different temperatures. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2AC7?

Yes, but get it checked soon

How much does it cost to fix P2AC7?

The estimated repair cost for P2AC7 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat