Diagnostic Test

CHARGING SYSTEM DTCS PRESENT
NOTE:
Make sure the Torque Sensor (Grey) harness connector is connected properly before continuing with this procedure.
1. Turn the ignition on.
2. With the scan tool, read DTCs in the PCM.
  Are there any Charging System or related voltage DTCs present?
  
  Yes
  - Perform the appropriate Charging System DTC diagnostic procedures before continuing with this test. Refer to DTC INDEX .
  No
  - Go To 2
CHECK THE BATTERY
NOTE:
Make sure the Battery is in good condition.
1. Using the AGM Battery Tester, test the Battery before continuing. (special tool #GR8-1220KIT-CHRY, AGM Battery Tester/Charger Station)
  Does the Battery pass the load test for this specific application?
  
  Yes
  - Go To 3
  No
  - Replace the Battery in accordance with the Service Information. Refer to BATTERY, REMOVAL .
CHECK FOR AN ACTIVE DTC
NOTE:
This DTC must be active for the results of this test to be valid.
1. Turn the ignition on.
2. With the scan tool, read DTCs and record on vehicle work order.
3. With the scan tool, erase DTCs.
4. Start the engine.
5. With the scan tool, read EPS DTCs.
  Is the DTC active?
  
  Yes
  - Go To 4
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK RELATED HARNESS CONNECTIONS
CAUTION:
Do NOT disconnect the Torque Sensor (Grey) harness connector on the electric power steering gear, as permanent damage can occur to the Electric Power Steering (EPS) Module.

NOTE:
Do not disconnect the Torque Sensor (Grey) harness connector and make sure it is connected properly.
1. Disconnect the EPS Module 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.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Connect the EPS Module harness connectors. Be certain that the harness connectors are fully seated and the connector locks are fully engaged.
6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Connect the 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. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read EPS Module DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Electric Power Steering (EPS) Module in accordance with service information. Refer to MODULE, ELECTRIC POWER STEERING (EPSM) .
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  - Test complete.