Test Mode Procedure

HINT:

This function checks if signals from the steering sensor, stop light switch, etc. are input normally to the Suspension control ECU.

1. In case of not using the intelligent tester:

   Check the input signal.

   1. Turn the ignition switch OFF.
   2. Set each of the check items in ITEM OPERATION TABLE  to the condition in Operation (A).
      Fig 1: Identifying Terminals 12 (TS) & 4 (CG) Of DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Using SST, connect terminals 12 (TS) and 4 (CG) of DLC3.

      SST 09843-18040 

   4. Turn the ignition switch ON.

      HINT:

      • At this time the height control OFF indicator light comes on for 2 seconds, and then flashes at 0.25 second intervals.
      • When the height control OFF indicator does not flash, check the TS terminal circuit (see TS AND CG 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 OFF indicator light comes on for 1 second.

      Fig 2: Identifying Control Off Indicator Light

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      ITEM OPERATION TABLE
      
      

      Check Item	Operation (A)	Operation (B)
      Steering angle sensor signal	Steering wheel straight ahead	Turn the steering wheel 36 or more
      Stop light 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	Vehicle height is in NORMAL position	Vehicle height is in HIGH and LOW position
      Damping mode select switch signal	Damping mode select switch is in NORMAL position	Turn the damping mode select switch COMFORT to SPORT 2 both ways once
      Height control switch signal	OFF (Height control switch not pushed)	ON (Height control switch pushed) OFF (Height control switch released)
      L4 position switch signal	Transfer shift lever is in H4 position	Shift transfer shift lever to L4 position
      Center differential lock position switch signal	Center differential lock switch OFF (Not pushed)	Center differential lock switch ON to OFF (Pushed and released)
      Vehicle speed sensor signal	Vehicle is in stationary condition	Vehicle speed 20 km/h (12 mph) or higher

   6. Using SST, connect terminal 13 (TC) and 4 (CG) of DLC3.

      SST 09843-18040 

      HINT:

      This should be done while you connect terminals TS and CG.

      Fig 3: Identifying Terminal 13 (TC) & 4 (CG) Of DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   7. Read the test DTC output by the height control OFF indicator light.

      HINT:

      • As an example, the blinking patterns for codes normal and 81 are as shown in Fig 5 .
      • If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed first.
      • When the DTC is not output, check the TC terminal circuit (see TC AND CG TERMINAL CIRCUIT  ).
        Fig 4: Identifying Control Off Indicator Light

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   8. Check the malfunction using the DTC code in DTC DETECTION CONDITION TABLE .
      Fig 5: Identifying Blinking Pattern

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   9. To exit from the input signal check mode, turn the ignition switch OFF, disconnect SST from the DLC3 and then turn the ignition switch ON.

      SST 09843-18040 

2. In case of using the intelligent tester:
   1. Turn the ignition switch OFF.
   2. Set each of the check items in the table below to the condition in Operation (A) in ITEM OPERATION TABLE  .
   3. Hook up the intelligent tester to the DLC3.
   4. Turn the ignition switch ON.
   5. Select the SIGNAL CHECK mode on the intelligent tester.
   6. Each of the check items is set to the condition in Operation (B) in ITEM OPERATION TABLE  .

      HINT:

      Individual checking of each signal can be performed.

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

      HINT:

      Refer to the intelligent tester operator's manual for further details.

      Fig 6: Connecting Intelligent Tester To DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If a DTC code is displayed during the test DTC check, check the circuit listed for that code. For details of each code, refer to the DIAGNOSTIC TROUBLE CODE TABLE .

1. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

   SST 09843-18020 

2. Turn the ignition switch ON.

   HINT:

   In this condition, the damping force control actuator position becomes 1 position.

3. Starting from the above mentioned position, as the brake pedal is depressed, the damping force control actuator position increases (1 --> 2 --> 3 --> 4 --> 5 --> 6 --> 7 --> 8 --> 9 --> 10 --> 11 --> 12 --> 13 --> 14 --> 15 --> 16). At this time, bounce the vehicle and check that the shock absorber damping force becomes harder.
   Fig 7: Identifying Terminals 12 (TS) & 4 (CG) Of DLC3

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • To hold the damping force control actuator at a specific position, adjust it to the position using the above mentioned procedure then increase the vehicle speed to over 5 km/h (3 mph).
   • After that the damping force control actuator position does not change until the ignition switch is turned OFF.
   • If the damping force control actuator does not operate, inspect the damping force control actuator circuit and suspension control Suspension control ECU.

1. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

   SST 09843-18040 

   Fig 8: Identifying Terminals 12 (TS) & 4 (CG) Of DLC3

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Push the DOWN button of the height select switch 5 times or more within 5 seconds after starting the engine.

   HINT:

   At this time the height control OFF indicator light flashes at 0.25 second intervals.

3. By operating each switch in VEHICLE MOVEMENT SPECIFICATION  , check the operation of the height control of each wheel.
   Fig 9: Identifying Down Button

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   VEHICLE MOVEMENT SPECIFICATION
   
   

   Vehicle Movement	Damping mode select switch	Height control switch	Height select switch
   Front wheels up	COMFORT mode	-	Push UP button
   Rear wheels up	COMFORT mode	Push and hold	Push UP button
   Front wheels down	COMFORT mode	-	Push DOWN button
   Rear wheels down	COMFORT mode	Push and hold	Push DOWN button

   NOTE: Do not raise the vehicle height higher than the HI position when raising it with the active test.