Exhaust Pressure Control Valve A Driver Current/Temperature Too High
The output driver for the exhaust pressure control valve A reports current or junction temperature above its protection threshold. Stalled actuator or short-circuit fault.
Affected components
- Exhaust pressure control valve a
- Ecm
Common causes
- High likelihood: Valve actuator mechanically jammed
- Medium likelihood: Control wire shorted to ground
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
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.