Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
3. With the scan tool, record any power sliding door inhibitors.
4. Erase the DTCs.
5. Turn the ignition off, wait 10 seconds, then turn the ignition on.
6. With the scan tool, read the Power Sliding Door Battery Voltage Input.
  NOTE:
  If the Battery Voltage Input is below 12.0 volts, check the Fused B(+) and Ground circuits at the Body connector and repair as necessary before proceeding.
7. Attempt to operate the Left Power Sliding Door.
8. With the scan tool, read the PSDML DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE LEFT POWER SLIDING DOOR
1. Examine the Left Power Sliding Door for proper alignment, worn or binding rollers and hinges, loose/damaged weatherstrip, and track assembly for wear or anything that would cause an obstruction to proper operation.
2. Manually open and close the Power Sliding Door on a known good vehicle and notice the effort needed to open and close.
3. Compare the effort needed to open and close the door on the disabled vehicle.
4. Especially notice the effort needed to unlatch and close the Left Power Sliding Door.
  Does it take more effort to operate the door than it should?
  
  Yes
  - Refer to Appropriate Service information for the related symptom(s).
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE LEFT POWER SLIDING DOOR TRACK HARNESS
NOTE:
At this time it will be necessary to remove the Left Power Sliding Door Drive Unit Assembly from the vehicle.
1. Turn the ignition off.
2. Remove the Left Power Sliding Door Drive Unit Assembly from the vehicle. See REMOVAL AND INSTALLATION for removal procedure.
3. Set the drive unit on the vehicle floor.
4. Remove the Left Power Sliding Door Module from the track.
5. Disconnect the Left Power Sliding Door Module connector.
6. Re-connect the Left Body 4 way harness connector.
7. Turn the ignition on.
8. With a 12-volt test light, connect one end to the (A125) Fused B(+) circuit and the other to the (Z921) Ground at the Left Power Sliding Door Module connector.
  NOTE:
  The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
  
  Does the test light illuminate brightly?
  
  No
  - Repair or replace the Track harness as necessary. If you have to order a new harness, be sure to specify if it is for the Driver or Passenger side of the vehicle.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  Yes
  - Go To 4
CHECK THE LEFT DOOR POSITION SENSOR SUPPLY CIRCUIT
1. Re-connect the Left Power Sliding Door Module connector to the module.
2. Measure the voltage between the Left Door Position Sensor Supply circuit and the Left Door Position Sensor Return circuit at the Left Power Sliding Door Drive Unit.
  Is the voltage between 4.5 and 5.5 volts?
  
  Yes
  - Replace the Left Power Sliding Door Drive Unit in accordance with service information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all Left Power Sliding Door 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. Reconnect all Left Power Sliding Door Module 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. Using the recorded Vehicle Scan Report, 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 PSDML DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Left Power Sliding Door Module in accordance with the Service Information. Refer to MODULE, DOOR (DDM/PDM), REMOVAL AND INSTALLATION or MODULE, DOOR, POWER SLIDING (PSDML/PSDMR), REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.