Real Time 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
- 3. 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
Go to the real time AWD system symptom troubleshooting for HDS does not communicate - Refer to: Real Time AWD System Symptom Troubleshooting - Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD) Real Time AWD System Symptom Troubleshooting - HDS does not communicate (AWD) Real Time AWD System Symptom Troubleshooting - AWD system indicator does not go off, and no DTCs are stored (AWD) Real Time AWD System Symptom Troubleshooting - Real time AWD system is stuck in 4WD mode (AWD) Real Time AWD System Symptom Troubleshooting - Abnormal noise (AWD) Real Time AWD System Symptom Troubleshooting - AWD system indicator does not come on (AWD) .
- 4. Real time 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 blink?
YES
The gauge control module is OK. Go to step 6.
NO
- 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 real time AWD control unit if it does not have the latest software , or substitute a known-good real time AWD control unit , 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 .
- 7. Real time 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.