AWD System Symptom Troubleshooting - AWD system indicator does not go off, and no DTCs are stored (AWD)

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

NOTE:  Do not jump the SCS line.

1. Problem verification

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

   -2. Turn the vehicle to the ON mode.

   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 

   The HDS communication is OK. Go to step 3.

   NO 

   Go to the DLC circuit troubleshooting .

3. AWD with intelligent control system communication check

   -1. Check the Main Menu of the AWD WITH INTELLIGENT CONTROL with the HDS.

   Does the HDS show the Main Menu of the AWD WITH INTELLIGENT CONTROL?

   YES 

   The AWD with intelligent control system communication is OK. Go to step 4

   NO 

   Go to the AWD symptom troubleshooting for HDS does not communicate .

4. AWD control unit status check 1

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

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   Longitudinal G sensor learning	Complete
   Air purge for rear differential	Complete
   AWD operation check	Complete

   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 blinkΩ

   YES 

   The gauge control module is OK. Go to step 6.

   NO 

   Replace the gauge control module .

6. Gauge control module DTC check

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

   DTC Description	DTC

   Is DTC indicated?

   YES 

   Go to the indicated DTC's troubleshooting in the gauge control module.

   NO 

   Update the AWD control unit if it does not have the latest software , or substitute a known-good AWD control unit , and recheck. If the symptom/indication goes away with the updated AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good AWD control unit, replace the original AWD control unit .

7. AWD control unit status check 2

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

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   Longitudinal G sensor learning	Incomplete
   Air purge for rear differential	Incomplete
   AWD operation check	Incomplete

   Do the current condition (s) match the threshold?

   Longitudinal G sensor learning is incomplete

   Do the G SENSOR LEARNING in the ADJUSTMENT with the HDS.

   Air purge for rear differential is incomplete

   Do the ECU REPLACEMENT in the ADJUSTMENT with the HDS.

   AWD operation check is incomplete

   Do the ECU REPLACEMENT in the ADJUSTMENT with the HDS.