Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Body Control Module (BCM) DTCs and record on the repair order.
2. Record the Environmental Data and any DTCs.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read BCM DTCs.
  Did the DTC return?
  
  Yes
  - Go to 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer TESTING FOR AN INTERMITTENT CONDITION to STANDARD PROCEDURE .
CHECK FOR VOLTAGE ON THE (F741) FUSED IGNITION RUN/START CIRCUIT
1. Turn the ignition off.
2. Remove Fuse F16 (5A) from the Front Power Distribution Center (PDC) Assembly.
3. Turn the ignition on.
4. Measure the voltage on the (F741) Fused Ignition Run/Start circuit at the Fuse F16 (5A) terminal in the Front PDC Assembly.
  Is there any voltage present?
  
  Yes
  - Inspect Fuse F16 (5A) and replace if needed. If no problem is found with Fuse F16 (5A), Go To 5.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (F741) FUSED IGNITION RUN/START CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the BCM C3/C harness connector.
3. Disconnect the Front PDC Assembly C2 harness connector.
4. Measure the resistance of the (F741) Fused Ignition Run/Start circuit between the Front PDC Assembly C2 harness connector and BCM C3/C harness connector - terminal 19.
  Is the resistance above 3.0 Ohms?
  
  Yes
  - Repair the open on the (F741) Fused Ignition Run/Start circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (F741) FUSED IGNITION RUN/START CIRCUIT FOR A SHORT TO GROUND
1. Check for continuity between the (F741) Fused Ignition Run/Start circuit and ground at BCM C3/C harness connector - terminal 19.
  Is there continuity between the (F741) Fused Ignition Run/Start circuit and ground?
  
  Yes
  - Repair the short to ground on the (F741) Fused Ignition Run/Start circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 6
CHECK RELATED FRONT PDC ASSEMBLY HARNESS CONNECTIONS
1. Disconnect all Front PDC Assembly 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 all Front PDC Assembly harness connectors. Be certain that all 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 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 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 BCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Front Power Distribution Center (PDC) Assembly in accordance with the Service Information. Refer to CENTER, POWER DISTRIBUTION (PDC), 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.
CHECK RELATED BCM HARNESS CONNECTIONS
1. Disconnect all BCM 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 all BCM harness connectors. Be certain that all 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 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 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 BCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), 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.