AWD System Indicator Does Not Go Off, And No DTCs Are Stored

Trans/Driveline

Real Time AWD Symptom Troubleshooting - AWD system indicator does not go off, and no DTCs are stored

AWD system indicator does not go off, and no DTCs are stored

NOTE:
* Before you troubleshoot, review the how to troubleshoot the real time AWD system.
* Do not jump the SCS line.

1. Problem verification:

-1. Test the battery. Charge or replace the battery if necessary.

-2. Turn the ignition switch to ON (II).

Does the AWD system indicator come on?
-YES- The failure is duplicated. Go to step 2.
-NO- Intermittent failure, the system is OK at this time.

2. HDS communication check:

-1. Check that the HDS communicates with the vehicle.

Does the HDS communicate with the vehicle?
-YES- Go to step 3.
-NO- Go to the DLC circuit troubleshooting Testing and Inspection.

3. Real time AWD system communication check:

-1. Check the Main Menu of the real time AWD system with the HDS.

Does the HDS show the Main Menu of the real time AWD system?
-YES- Go to step 4.
-NO- Go to the real time AWD symptom troubleshooting for HDS does not communicate HDS Does Not Communicate.

4. Real time AWD control unit status check 1:

-1. Check the parameter(s) below with the HDS.






Do the current condition(s) match the threshold?
-YES- Go to step 5.
-NO- Go to step 7.

5. Gauge control module operation check:

-1. Do the gauge control module self-diagnostic function.

Does the AWD system indicator blink?
-YES- Go to step 6.
-NO- Replace the gauge control module Service and Repair.

6. Gauge control module DTC check:

-1. Check for DTCs in the METER system with the HDS.





Is DTC indicated?
-YES- Go to the indicated DTC's troubleshooting in the gauge control module.
-NO- Update the real time AWD control unit if it does not have the latest software Real Time AWD Control Unit Update, or substitute a known-good real time AWD control unit Service and Repair, and recheck. If the symptom/indication goes away with the updated real time AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good real time AWD control unit, replace the original real time AWD control unit Service and Repair.

7. Real time AWD control unit status check 2:

-1. Check the parameter(s) below with the HDS.






Do the current condition(s) match the threshold?
-Longitudinal G sensor learning is incomplete- Do the G Sensor Learning in the Adjustment MENU with the HDS.
-Air purge for rear differential is incomplete- Do the ECU Replacement in the Adjustment MENU with the HDS.
-AWD operation check is incomplete- Do the ECU Replacement in the Adjustment MENU with the HDS.