When Monitored
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The Cold Start Monitor diagnostic runs when the following enable conditions are met:
- After an engine off time of more than 60 minutes.
- Battery voltage is above 10.7 volts.
- Engine cold start condition, which is determined by the difference between the engine coolant temperature and ambient temperature at engine start up being less that 15°C (59°F).
- Engine start up coolant temperature is above -7°C (19.4°F).
- Engine oil temperature is between -10°C (14°F) and 188°C (370°F).
- No Cam/Crank Misalignment, Camshaft Slow Response, Engine Oil Pressure Sensor or Engine Oil Temperature Sensor DTCs present.
- Engine at idle speed.
- Vehicle speed is below 2 mph.
- On a cold start, when the above enable conditions are met, the PCM will command the Bank 1 Exhaust Cam phaser to a predetermined modeled target position and monitor the actual position of the phaser to see if it is within a calibrated threshold of the target.
- The Cold Start Monitor diagnostic will stop running if any of the following conditions occur:
- Accelerator Pedal is pressed causing the engine to come off idle.
- The engine stalls.
- The engine run time or diagnostic testing time exceeds a calibrated threshold.