Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE IGNITION RUN/START RELAY FOR CORRECT OPERATION
1. Turn the ignition off.
2. Remove the Ignition Run/Start Relay and substitute it with a known good relay.
3. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3
  No
  - Replace the Ignition Run/Start Relay.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (K617) RUN/START RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Remove the Run/Start Relay.
3. Using a 12-volt test light connected to ground, check the (K617) Run/Start Relay Control circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Repair the short to voltage in the (K617) Run/Start Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (K617) RUN/START RELAY CONTROL CIRCUIT FOR AN OPEN
1. Disconnect the BCM A harness connector.
2. Measure the resistance of the (K617) Run/Start Relay Control circuit between the Power Distribution Center (PDC) and the BCM A harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (K617) Run/Start Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .