Input Signal Check (Test Mode Check)

This function checks if signals from the steering sensor and stop light switch etc. are being input normally to the ECU.
1. Turn ignition switch OFF.
2. Set each of the check items in the table below to the condition in Operation A.
3. Using SST 09843-18020, connect terminals Ts and E1 of the DLC 1.
4. Turn ignition switch ON or the engine is running.

HINT:
^ At this time the height control indicator light come on 2 second. After, this light flashes at 0.25 second intervals.
^ When the height control indicator is not flashes, check the Ts terminal circuit.

5. Each of the check items is set to the condition in Operation B.





HINT: When operation of the check items, the height control indicator light come on 1 second.





6. Using SST 09843-18020, connect terminals Tc and E1 of DLC 1 or DLC 2.

HINT: This should be done while you connect terminals Ts and E1.











7. Read the test DTC output by "HEIGHT HI" indicator light. As an example, the blinking patterns for codes normal and 81 are as shown on the illustration.

HINT:
^ At the same time the DTC output by "HEIGHT HI" indicator light.
^ When the DTC is not output, check the Tc terminal circuit.

8. Check the malfunction using the code table.

Operation A
^ Steering sensor: steering straight ahead
^ Stop light switch: OFF (brake pedal not depressed)
^ Door courtesy switch: OFF (all doors closed)
^ Throttle position sensor: Accelerator pedal not depressed
^ Vehicle speed sensor: vehicle speed below 12 MPH (20 km/h)
^ Height control switch: NORM position

Operation B
^ Steering sensor: steering angle 36° or larger
^ Stop light switch: ON (brake pedal depressed)
^ Door courtesy switch: ON (each door opened)
^ Throttle position sensor: Accelerator pedal fully depressed within 1 second
^ Vehicle speed sensor: vehicle speed 12 MPH (20 km/h) or higher
^ Height control switch: HIGH position
^ Acceleration sensor front RH Side: keep the vehicle still without any vertical movement for 1 second
^ Acceleration sensor front LH Side: keep the vehicle still without any vertical movement for 1 second
^ Acceleration sensor rear RH Side: keep the vehicle still without any vertical movement for 1 second