P022D
Charge Air Cooler Bypass Control B Circuit/Open
Charge Air Cooler Bypass Control B Circuit/Open: the circuit is open. Likely a broken wire, disconnected connector, or failed component.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Wiring breakCommon
- Pin pushed back out of connector bodyLess likely
- Cracked solder joint inside the module or sensorLess likely
Parts involved
- Cac Bypass Valve B
- Actuator Wiring
P022D is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.