Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Powertrain Control Module 1 (PCM-1) DTCs and Freeze Frame Data and record on the repair order.
2. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
  WARNING:
  When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
3. With the scan tool, read DTCs and record on the repair order.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK THE ENGINE OIL LEVEL AND CONDITION
1. Turn the ignition off.
2. The following items should be checked before continuing with this procedure. Failure to do so may lead to misdiagnosis.
  - LOW ENGINE OIL LEVEL
  - AERATED ENGINE OIL
  - INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATIONS)
  - DETERIORATED OR DIRTY OIL
  - CONTAMINATED ENGINE OIL
  - INCORRECT ENGINE OIL VISCOSITY
  Were any of the above conditions present?
  
  Yes
  - Repair the engine oiling or mechanical condition (i.e. improper oil drain back, oil sludge, damaged oil pump, pick-up tube or seal, etc.).
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK THE ENGINE OIL PRESSURE AND ENGINE MECHANICAL CONDITION
1. Remove the EOP Sensor near the Oil Filter and install an oil pressure gauge on the engine.
2. Start the engine and allow it to idle.
3. Monitor the engine oil pressure reading on the gauge.
  Is the oil pressure reading steady and above the engine specifications?
  
  Yes
  - Go To 4
  No
  - Repair the engine oiling or mechanical condition (i.e. low engine oil, incorrect engine oil viscosity, contaminated or deteriorating engine oil, improper oil drain back or blocked screen in cylinder head, oil sludge, damaged oil pump, pick-up tube or seal, incorrect engine oil filter (DOES NOT MEET OEM SPECIFICATIONS) etc.).
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
REPLACE THE TURBOCHARGER OIL DEACTIVATION SOLENOID AND RETEST FOR DTC
1. Replace the Turbocharger Oil Deactivation Solenoid in accordance with the Service Information.
2. Connect the Turbocharger Oil Deactivation Solenoid and PCM harness connectors.
3. Turn the ignition on.
4. With the scan tool, erase DTCs.
5. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
6. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 5
  No
  - Replacing the Turbocharger Oil Deactivation Solenoid repaired the fault.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all PCM-1 harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. 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.
5. Reconnect all PCM-1 harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
10. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace and program the Powertrain Control Module 1 (PCM-1) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL AND INSTALLATION .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - The wiring or poor connection problem has been repaired.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .