OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P2AC7?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
- PossibleWiring or connector fault
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Charge Air Cooler Coolant Temp Sensor B, Wiring Harness, Ecm
Related codes
- P00DECharge Air Cooler Coolant Temperature Sensor A Circuit
- P2AC4Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 2
- P2AC5Intake Air O2 Sensor Reference Voltage Circuit Low Bank 2
- P2AC6Intake Air O2 Sensor Reference Voltage Circuit High Bank 2
- P2AC8Charge Air Cooler Coolant Temperature Sensor B Range/Performance
- P2AC9Charge Air Cooler Coolant Temperature Sensor B Circuit Low
- P2ACACharge Air Cooler Coolant Temperature Sensor B Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.