OBD-II code · Powertrain (generic)
P00A2 Charge Air Cooler Temperature Sensor Circuit Low Bank 2
Charge air cooler temperature sensor signal voltage on bank 2 below expected range. Typically a short to ground. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P00A2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Cac Temperature Sensor, Sensor Wiring
Related codes
- P007CCharge Air Cooler Temperature Sensor Circuit Low Bank 1
- P009FFuel Pressure Relief Control Stuck On
- P00A0Charge Air Cooler Temperature Sensor Circuit Bank 2
- P00A1Charge Air Cooler Temperature Sensor Circuit Range/Performance Bank 2
- P00A3Charge Air Cooler Temperature Sensor Circuit High Bank 2
- P00A4Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic Bank 2
- P00A5Intake Air Temperature Sensor 2 Circuit Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.