Coolant Bypass Valve B Control Circuit/Open
The coolant bypass valve B reports a control circuit/open condition.
Affected components
- Coolant bypass valve b
- Wiring harness
Common causes
- High likelihood: Open in control wire
- Medium likelihood: Coil open
- Low likelihood: Pin pushed back out of connector body
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.