B2184

B2184-IGNITION UNLOCK RUN/START CONTROL CIRCUIT LOW





For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
With the ignition on.

- Set Condition:
(F902) Fused Ignition Switch Output (Unlock-Run-Start) circuit low.








Diagnostic Test


1. CHECK FOR ACTIVE DTC
With the scan tool, read the DTC's.
Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
With the scan tool, read the DTC's.
Does the scan tool display this DTC as active?

Yes


- Go To 2


No


- If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.




2. SHIFT LEVER ASSEMBLY INTERNAL SHORT
Turn the ignition off.
Disconnect the Shift Lever Assembly harness connector.
Turn the ignition on.
With the scan tool, read DTCs.
Does the scan tool display this DTC as active?

Yes


- Go To 3


No


- Replace the Shift Lever Assembly.
- Perform BODY VERIFICATION TEST VER 1 Body Verification Test




3. POWERTRAIN CONTROL MODULE INTERNAL SHORT
Turn the ignition off.
Disconnect the Powertrain Control Module C1 harness connector.
Turn the ignition on.
With the scan tool, read DTCs.
Does the scan tool display this DTC as active?

Yes


- Go To 4


No


- Replace the Powertrain Control Module.
- Perform BODY VERIFICATION TEST VER 1 Body Verification Test




4. (F902) FUSED IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) CIRCUIT SHORT TO GROUND




Turn the ignition off.
Disconnect the TIPM C5 harness connector.
Measure the resistance between ground and the (F902) Fused Ignition Switch Output (Unlock-Run-Start) circuit.
Is the resistance below 10K ohms?

Yes


- Repair the (F902) Fused Ignition Switch Output (Unlock-Run-Start) circuit for a short to ground.
- Perform BODY VERIFICATION TEST VER 1 Body Verification Test


No


- Replace the TIPM.
- Perform BODY VERIFICATION TEST VER 1 Body Verification Test