Input Signal Check (Test Mode Check): Notes

HINT:

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

1. 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 below to the condition in Operation (A).
   3. Using SST, connect the terminals TS and CG of DLC3.
   4. Turn the ignition switch ON.
      Fig 1: Identifying Terminals TS & CG Of DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. Check that the height control OFF indicator lamp is blinking.

      HINT:

      • At this time, the height control OFF indicator lamp should come on for 2 sec. After that, this light blinks at 0.25 sec. intervals.
      • If the height control OFF indicator light does not blink, inspect the height control OFF indicator lamp circuit (See HEIGHT CONTROL OFF INDICATOR LAMP CIRCUIT ) and the TS terminal circuit (See TS TERMINAL CIRCUIT ).
      Fig 2: Identifying Indicator Lamp

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   6. Set each of the check items to the condition in Operation (B).

      HINT:

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

      CHECK ITEMS OPERATION
      
      

      Check Item	Operation (A)	Operation (B)
      Stop lamp switch signal	OFF (Brake pedal not depressed)	ON (Brake pedal depressed)
      Door courtesy switch signal	ON (Each door opened)	OFF (All doors closed)
      Height control switch signal	-	Press the height control switch "UP" first and then press "DOWN"
      Absorber control switch signal	-	Slowly move the absorber control switch "COMFORT" to "SPORT" and "COMFORT"
      Height control OFF switch signal	OFF (Height control OFF switch not pushed in)	ON to OFF (Height control OFF switch pushed in and released)
      Right front acceleration sensor signal	-	Keep the vehicle still without any vertical movement for 1 second
      Left front acceleration sensor signal	-	Keep the vehicle still without any vertical movement for 1 second
      Rear acceleration sensor signal	-	Keep the vehicle still without any vertical movement for 1 second
      Right front speed sensor signal	Vehicle speed below 20 km/h (12 mph)	Vehicle speed 20 km/h (12 mph) or higher
      Left front speed sensor signal	Vehicle speed below 20 km/h (12 mph)	Vehicle speed 20 km/h (12 mph) or higher
      Crankshaft position sensor signal	Engine speed below 2,000 rpm	Engine speed 2,000 rpm or higher

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

      SST 09843-18040

      Fig 3: Identifying Terminal TC In DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 Fig 5 .
      • 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 in TC TERMINAL CIRCUIT .
      Fig 4: Identifying Indicator Lamp

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   9. Check the malfunction using the code in DTC  .
   Fig 5: Identifying Blinking Patterns Of Normal Code & Code 82

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Ending the Input Signal Check Mode (Test Mode) using SST check wire.

   SST 09843-18040

   1. With the ignition switch to OFF, disconnect the SST check wire from the terminals of DLC3 and then tun the ignition switch ON.
3. 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) .
   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.