Injector Control Pressure Regulator Circuit Low
Voltage on the ICP regulator control line is below the expected window. Usually a short to ground or a shorted regulator coil.
Affected components
- Icp regulator
- Wiring harness
Common causes
- High likelihood: Control wire shorted to ground
- Medium likelihood: Internal short in regulator coil
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.