Diagnostic Test
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.
- CHECK THE BATTERY FOR PROPER CONDITION
- Inspect and test the Battery with the Midtronics Battery Tester or equivalent for a shorted or dead cell.NOTE:
This DTC can set if excessive high or low battery system voltage has occurred during programming.
Did the Battery pass testing?
Yes
- Go To 2
No
- Replace the Battery in accordance with the Service Information. Refer to BATTERY, REMOVAL .
- With the scan tool, program the Secret Key information into the PCM using the MODULE PROGRAMMING procedure. Refer to STANDARD PROCEDURE .
- Inspect and test the Battery with the Midtronics Battery Tester or equivalent for a shorted or dead cell.
- CHECK THE BODY CONTROL MODULE (BCM) FOR COMMUNICATION WITH THE SCAN TOOL
- With the scan tool, attempt to communicate with the BCM.
Can the scan tool communicate with the BCM?
Yes
- Go To 3
No
- Perform the No Response from BCM diagnostic procedure. Refer to NO RESPONSE FROM BCM (BODY CONTROL MODULE) .
- With the scan tool, attempt to communicate with the BCM.
- PROGRAM THE SECRET KEY INTO THE PCM
- Turn the ignition on.
- With the scan tool, erase DTCs.
- With the scan tool, program the Secret Key information into the PCM using the MODULE PROGRAMMING procedure. Refer to STANDARD PROCEDURE .
- Start the engine.NOTE:
If the engine will not start, crank the engine for 15 seconds. Crank at least 2 times with the ignition switch returning to the off position each time.
- With the scan tool, read DTCs.
Does the DTC return?
Yes
- Go To 4
No
- The Secret Key information has been successfully programmed into the PCM. Test is complete.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .
- CHECK RELATED HARNESS CONNECTIONS
- Disconnect all PCM harness connectors.
- Disconnect all related in-line harness connections (if equipped).
- Disconnect the related component harness connectors.
- Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
- Proper connector installation.
- Damaged connector locks.
- Corrosion.
- Other signs of water intrusion.
- Weather seal damage (if equipped).
- Bent terminals.
- Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
- Terminals that have been pushed back into the connector cavity.
- Check for spread terminals and verify proper terminal tension.
Repair any conditions that are found.
- Connect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
- Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
- With the scan tool, erase DTCs.
- Test drive or operate the vehicle in accordance with the when monitored and set conditions.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL, 2.4L/3.2L .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .
No
- The wiring or poor connection problem has been repaired.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .