Diagnostic Test
WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- COOLING FAN RELAY OPERATION
- Ignition on, engine not running.
- With the scan tool, actuate the Cooling Fan.
Is the Cooling Fan operating?
Yes
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
No
- Go To 2.
- CAN C or ECT DTCS CURRENTLY ACTIVE
Are any CAN C or ECT DTCs Active at this time?
Yes
- Perform the appropriate diagnostics for the ECT Sensor or CAN C Bus DTC. Refer to PCM - DIAGNOSTIC CODE INDEX .
No
- Go To 3.
- COOLING FAN CONTROL CIRCUIT DTCS SET IN THE TIPM
Are any Cooling Fan Control Circuit DTCs set in the TIPM?
Yes
- Diagnose the appropriate Cooling Fan Control Circuit DTC in the TIPM. Refer to DIAGNOSIS AND TESTING .
No
- Go To 4.
- POWERTRAIN CONTROL MODULE (PCM)
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Pressure Sensor and the Powertrain Control Module (PCM).
- Look for any chafed, pierced, pinched or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Sensor and Powertrain Control Module connectors.
- Perform any Technical Service Bulletins that may apply.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .