Input Signal Check (Test Mode Check)

INPUT SIGNAL CHECK (TEST MODE CHECK)

HINT: This function checks that whether signals from the stop lamp switch assembly and the door courtesy switch, etc. are being input normally to the ECU.

a. Procedure for Input Signal Check Mode (Test Mode) using SST check wire.
SST 09843-18040

1. Make sure the ignition switch is OFF.
2. Set each of the check items in the table to the condition in Operation (A).




3. Using SST, connect the terminals TS and CG of DLC3.
4. Turn the ignition switch ON.




5. Check that the height control OFF indicator lamp is blinking.

HINT:
- At this time, the height control OFF indicator lamp blinks at 0.125 sec. intervals.
- If the height control OFF indicator lamp does not blink, inspect the height control OFF indicator lamp circuit and the TS terminal circuit.

6. Set each of the check items to the condition in Operation (B).









HINT: When checking each item, the height control OFF indicator lamp should come on for 1 sec.




7. Using SST, connect the 3rd terminal of the SST check wire to terminal TC in DLC3.
SST 09843-18040




8. Read the number of blinks of the height control OFF indicator lamp.

HINT: As an example, the blinking patterns of normal code and code 82 are shown in the illustration.

If 2 or more malfunctions are indicated at the same time, the lowest numbered code is displayed first.

When DTC is not output, check the TC terminal circuit.




9. Check the malfunction using the code table on the next page.

b. Ending the Input Signal Check Mode (Test Mode) using SST check wire.
SST 09843-18040

With the ignition switch to OFF, disconnect the SST check wire from the terminals of DLC3 and then turn the ignition switch ON.

c. Procedure for Sensor Test Mode (Test Mode) using the hand-held tester.
1. Make sure the ignition switch OFF.
2. Set each of the check items to the condition in Operation (A) on the previous page.
3. Connect the hand-held tester to DLC3.
4. Turn the ignition switch ON.
5. Select the SIGNAL CHECK mode on the hand-held tester.
6. Set each of the check items to the condition in Operation (B) on the previous page.

HINT: In step (6), all signals can be checked together.

7. Read the DTCs by following the prompts on the tester screen.

HINT: Refer to the hand-held tester operator's manual for further details.

DTC from input signal check

C1782/82 - C1794/94:

C1795/95 - C1797/97:

If a malfunction code is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to the DTC under respective "DTC No." in the chart.