TRANSFER CASE - TOD 5D2-31 4WD LOW INDICATOR STAYS ON WITH IGNITION SWITCH ON Circuit Description When the ignition switch turns to ON the transfer case control unit (TOD) illuminates 4WD CHECK and 4WD LOW indicator to check bulb operation and turns off after 0.6 seconds. Then TOD starts self-diagnosis and illuminate 4WD CHECK indicator when TOD detects any fault. Test Description The number(s) below refer to step(s) on the diagnostic table. 2. This step checks for the normal bulb operation. Diagnostic Aids • If the 4WD LOW indicator illuminates steadily the transfer case in 4WD low range and 4H/4L switch set to 4L. It is normal condition.
• The 4WD LOW indicator also illuminates steadily if the terminal B9 of TOD connector is shorted to ground. The shorted wire or terminals should be repaired. SSANGYONG Y200 Step Action Value Yes No 1 Check the position of 4H/4L switch. Does the 4H/4L switch set on 4L? - Go to Step 2 Go to Step 3 2 1. Turn the ignition switch to ON. 2. Set the shift lever to N (neutral). 3. Turn the 4H/4L switch to 4H. Does the 4WD LOW indicator go off? - System OK - 3 1. Turn the ignition switch to ON. 2. Set the shift lever to N (neutral). 3. Turn the 4H/4L switch to 4L. Does the 4WD LOW indicator go off? - Go to Step 4 Go to Step 5 4 The wiring of 4H/4L switch is reversed. Repair the wiring.
Is the repair complete? - System OK - 5 1. Turn the ignition OFF. 2. Check the pin or terminals for damage or improper connection. 3. Reconnect all the connectors. 4. Turn the ignition ON. Does the 4WD LOW indicator come on steadily? - Go to Step 6 System OK 6 Repair any short to ground circuit between terminal B9 of TOD connector and terminal A13 of cluster. Is the repair complete? - System OK Go to Step 7 7 Replace the TOD. Is the repair complete? - System OK -