Functions of Indicator Lamp

TOD INDICATOR LAMPS





Indication Of Drive Mode
The transfer lever position signals are transmitted to the TOD indicator lamp control unit according to the conditions listed below.

Indication During Transition Of Transfer Lever
When the transfer lever is shifted, and the signals from the AXLE switch do not comply with the signal conditions of the 4H and 4L switch, the transfer lever position signals generated by the 4H and 4L switch and the N position signals are repeatedly output at an interval of 0.8 second.

NOTE: After the transfer lever is set to the specified position and the AXLE switch generates compliant signals, the normal output status is returned.





Valve Check





When the starter switch is turned on, the TOD indicator lamps go on as shown in the image provided.

NOTE: Once the starter switch is turned on, all the TOD indicator lamps are lit for two seconds even if the transfer lever is in any position.

Simplified Checking Method Of ABS In And Brake On Signals:





In the event that any of the signal inputs listed below are observed while the self-diagnostic code is being displayed (the self-diagnostic connector is short-circuited to GND), you can simply check the ABS IN and BRAKE ON signals as shown in the figures provided.

CHECK LAMP
Check Lamp Valve Check





When the starter switch is turned on in the normal state, the control unit turns on the CHECK lamp to check the valve.
The CHECK lamp also has the following functions.
D-G MAP recognition and display (The control unit displays what type of vehicle, diesel or gasoline vehicle, it recognizes.)
1. Short-circuit the self-diagnostic connector.
2. Turn on the starter switch connector. (Displays with respect to the self-diagnosis begin to appear.)

NOTE: Do not start the engine.

3. Shift the transfer lever to the neutral position between HIGH and 4L.





4. After all the conditions in 1 through 3 above are met, set the throttle to the WOT (wide open throttle) position (i.e., full open position). The display of the self-diagnosis is temporarily suspended, and the CHECK lamp begins to display that MAP is recognized by the TPS (throttle position sensor) according to the current conditions.

NOTE: If the TPS has failed, this function might not work.

1. When the control unit recognizes the vehicle as gasoline type, the CHECK lamp is turned on for five seconds and this mode is repeated at an interval of 0.3 second.
2. When the control unit recognizes the vehicle as diesel type, the CHECK lamp is turned off for five seconds and this mode is repeated at an interval of 0.3 seconds.
3. Upon completion of step 4, the system resumes the self-diagnosis. (The self-diagnosis is executed from the beginning.)
5. Turn off the starter switch once. When above conditions are met again in the future, the TPS MAP control can be started.