Real Time AWD System 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: Do not jump the SCS line.

1.
Problem verification:

Problem verification
?1.
Test the 12 volt battery. Charge or replace the 12 volt 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:

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
     
     
     
3.
Real time AWD system communication check:

Real time AWD system communication check
?1.
Check the Main Menu of the REAL TIME AWD with the HDS.

Does the HDS show the Main Menu of the REAL TIME AWD?

     
YES
     
     
     
The real time AWD system communication is OK. Go to step 4.
     
NO
     
     
     
4.
AWD control unit status check 1:

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:

Gauge control module operation check
?1.
Do the gauge control module self-diagnostic function.

Does the AWD system indicator blink?

     
YES
     
     
     
The gauge control module is OK. Go to step 6.
     
NO
     
     
     
6.
Gauge control module DTC check:

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
     
     
     
Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good AWD control unit, and recheck. 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:

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.?