Testing: Trooper LS V6-35L (1998) Traction Control Indicator Lamp
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.
