P2AC7
Charge Air Cooler Coolant Temperature Sensor B Circuit
The ECM detects a generic fault on the charge air cooler coolant temperature B sensor circuit. Reading cannot be used reliably for control.
The ECM detects a generic fault on the charge air cooler coolant temperature B sensor circuit. Reading cannot be used reliably for control.
Common causes
- high
Sensor failed
One of the most commonly reported causes for this code — check this first.
Typical part cost: $60-280
- medium
Wiring or connector fault
A plausible cause — test and verify before replacing parts.
Typical part cost: $60-280
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P2AC7 mean?
P2AC7 means "Charge Air Cooler Coolant Temperature Sensor B Circuit". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2AC7?
sensor failed; wiring or connector fault — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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