OBD-II code · Powertrain (generic)
P022B Charge Air Cooler Bypass Control A Circuit Low
Charge Air Cooler Bypass Control A Circuit Low: the signal voltage is below the expected range. Often a short to ground or high resistance in the wiring.
Is it safe to drive with P022B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyWiring 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
- 0.5–3 h
- Emissions test
- Likely to fail
- Parts involved
- Cac Bypass Valve A, Actuator Wiring
Related codes
- P022ECharge Air Cooler Bypass Control B Circuit Low
- P0228Throttle/Pedal Position Sensor/Switch C Circuit High
- P0229Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
- P022ACharge Air Cooler Bypass Control A Circuit/Open
- P022CCharge Air Cooler Bypass Control A Circuit High
- P022DCharge Air Cooler Bypass Control B Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.