Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- DTC IS ACTIVE NOTE:
If there are any engine performance or 'engine-runs-rough' issues present, perform the Diagnostics for those conditions before continuing with this one.
NOTE:If there are any CAN-Bus related DTCs present, perform the Diagnostics for those DTCs before continuing with this one.
- Turn the ignition on.
- With the scan tool, clear DTCs.
- Test drive the vehicle. Cycle the ignition on-off at least twice during this test drive.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
- OTHER DTCS PRESENT NOTE:
If there are ABS DTCs present, perform the Diagnostics for those DTCs at this time.
- With the scan tool, select View DTCs (In the ABS DIAGNOSIS AND TESTING
section).
Are there any ABS DTCs Active or Pending?
Yes
- Perform the Diagnostics for ABS DTCs at this time.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Go To 3
- With the scan tool, select View DTCs (In the ABS DIAGNOSIS AND TESTING
section).
- ABS MODULE
- Turn the ignition off.
- Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
- Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
- Perform any Technical Service Bulletins that may apply.NOTE:
The Tone Wheel Teeth should be perfectly square, not bent or nicked.
- Inspect the Tone Wheel Teeth for damage.
Were any problems found?
Yes
- Repair as necessary in accordance with the Service Information.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Go To 4
- ABS MODULE
- Turn the ignition off.
- Replace the ABS Module in accordance with the Service Information.
- Turn the ignition on.
- With the scan tool, clear DTCs.
- Test drive the vehicle. Cycle the ignition on-off at least twice during this test drive.
- With the scan tool, select View DTCs.
Did the DTC return?
Yes
- Go To 5
No
- Test Complete.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- POWERTRAIN CONTROL MODULE
- 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.
- Perform a terminal drag test on each connector terminal to verify proper terminal tension.
Repair any conditions that are found.
- Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
- Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Reconnect 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.
- Using the recorded Freeze Frame and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read PCM DTCs.
Did the DTC return?
Yes
- Replace the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, 6.7L DIESEL, REMOVAL .
- Perform the PCM VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
No
- Test complete.
- Perform the PCM VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .