Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN WARNING:
On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury.
Read the HIGH-VOLTAGE SAFETY PROCEDURES. Refer to HIGH VOLTAGE SAFETY PROCEDURES .
When the HIGH-VOLTAGE POWER-DOWN PROCEDURE is necessary. Refer to HIGH VOLTAGE POWER DOWN .
- With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
- For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
- With the scan tool, erase all DTCs.
- Turn the ignition off for a minimum of 10.0 seconds.
- Turn the ignition on.
- Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
- CHECK POWERTRAIN CONTROL MODULE (PCM) FOR DTCS
- With the scan tool, read PCM DTCs.
Are any PCM Communication DTCs set?
Yes
- Repair PCM Communication DTCs. Refer to DIAGNOSTIC CODE INDEX, 2.0L , DIAGNOSTIC CODE INDEX, 3.6L or DIAGNOSTIC CODE INDEX, 5.7L .
No
- Go To 3
- With the scan tool, read PCM DTCs.
- CHECK FOR OTHER HCP DTCS
- Refer to the recorded DTCs.
Are any HCP Communication DTCs set?
Yes
- Repair HCP Communication DTCs. Refer to DIAGNOSTIC CODE INDEX .
No
- Go To 4
- Refer to the recorded DTCs.
- CHECK FOR ENGINE MECHANICAL AND TRANSMISSION MECHANICAL PROBLEMS
- Check for Engine mechanical problem in accordance with the Service Information.
Are any Engine mechanical problems present?
Yes
- Repair the Engine in accordance with the Service Information.
- Perform the Hybrid Control Processor (HCP) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Check for and repair the Transmission mechanical problems in accordance with the Service Information.
- Perform the Hybrid Control Processor (HCP) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- Check for Engine mechanical problem in accordance with the Service Information.