Control Pilot Charging Switch A Intermittent/Erratic
The control pilot charging switch A reports a intermittent/erratic condition. SAE J1772 charging signal handshake may be compromised.
Affected components
- Control pilot switch a
- Wiring harness
- Bms
Common causes
- High likelihood: Connector not seated
- Medium likelihood: Noisy ground reference
- Low likelihood: Connector with intermittent contact under vibration
Possible symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
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.