B2184-IGNITION UNLOCK RUN/START CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
(F901) Fused Ignition Switch Output (Unlock-Run-Start) circuit low.
| Possible Causes |
| (F901) FUSED IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) CIRCUIT SHORT TO GROUND |
| LEFT HEADLAMP LEVELING MODULE |
| RIGHT HEADLAMP LEVELING MODULE |
| TIPM |
Diagnostic Test
1.CHECK FOR ACTIVE DTCDoes 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.LEFT HEADLAMP LEVELING MODULE INTERNAL SHORT
Does the scan tool display this DTC as active?
Yes
- Go To 3
No
- Replace the Left Headlamp Leveling Module in accordance with the service information.
- Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
3.RIGHT HEADLAMP LEVELING MODULE INTERNAL SHORT
Does the scan tool display this DTC as active?
Yes
- Go To 4
No
- Replace the Right Headlamp Leveling Module in accordance with the service information.
- Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
4.(F901) FUSED IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) CIRCUIT SHORT TO GROUND
Is the resistance below 10K ohms?
Yes
- Repair the (F901) Fused Ignition Switch Output (Unlock-Run-Start) circuit for a short to ground.
- Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace the TIPM in accordance with the service information.
- Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)