Intake Camshaft Actuator Control Circuit
Table of contents
P1656 PONTIAC Possible Causes
- Faulty Intake Camshaft Position (CMP) Actuator Solenoid
- Intake Camshaft Position (CMP) Actuator Solenoid harness is open or shorted
- Intake Camshaft Position (CMP) Actuator Solenoid circuit poor electrical connection
How do I fix code P1656 PONTIAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1656 PONTIAC code
The cost of diagnosing the P1656 PONTIAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- No start
P1656 PONTIAC Description
The DTC P1656 Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit diagnostic monitors the operation of the CMP actuator system. The CMP actuator system enables the Powertrain control Module (PCM) to change the camshaft timing when the engine is running. THE CMP actuator solenoid valve control the oil flow that applies the pressure to advance or retard the camshaft. The PCM provides a Pulse Width Modulated (PWM) signal for control of the CMP actuator solenoid.