Test Mode Procedure

1. When the engine switch is turned on (IG), check that the absorber control indicator light will come on for approximately 2 seconds. (Absorber control switch is in the "NORMAL" position.)

   HINT:

   If the absorber control ECU stores any DTCs, the absorber control indicator light will come on.

   Fig 1: Identifying Absorber Control Indicator Light

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   If the absorber control indicator light remains on or does not come on, proceed to troubleshooting for the indicator light circuit below.

   ABSORBER CONTROL INDICATOR LIGHT REFERENCE
   
   

   Trouble area	See procedure
   Absorber control indicator light (Remains on)	ABSORBER CONTROL INDICATOR LIGHT REMAINS ON
   Absorber control indicator light (Does not come on)	ABSORBER CONTROL INDICATOR LIGHT DOES NOT COME ON

HINT:

• If the engine switch is turned from on (IG) to on (ACC) or off during Test Mode (SIGNAL CHECK), all Test Mode DTCs will be erased.
• During Test Mode (SIGNAL CHECK), the absorber control ECU records all Test Mode DTCs. By performing the Test Mode (SIGNAL CHECK), the codes will be erased if normality is confirmed. The remaining codes will be the codes where an abnormality was found.

1. Procedure for Test Mode.
   1. Turn the engine switch off.
   2. Connect Techstream to the DLC3.
   3. Turn the engine switch on (IG).
   4. Set Techstream to Test Mode (select "SIGNAL CHECK").

      HINT:

      Refer to Techstream operator's manual for further details.

   5. Start the engine without depressing the brake pedal.
   6. Check that the absorber control indicator light is blinking in Test Mode.

      HINT:

      If the absorber control indicator light does not blink, inspect the absorber control indicator light circuit.

      ABSORBER CONTROL INDICATOR LIGHT REFERENCE
      
      

      Trouble area	See procedure
      Absorber control indicator light (Remains on)	ABSORBER CONTROL INDICATOR LIGHT REMAINS ON
      Absorber control indicator light (Does not come on)	ABSORBER CONTROL INDICATOR LIGHT DOES NOT COME ON

      Fig 2: Blinking Pattern Of Absorber Control Indicator Light

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The "SPORT" indicator (absorber control indicator light) comes on for 1 second when inputting each diagnostic signal.

1. Keep the absorber control switch in the "NORMAL" position.
2. Keep the vehicle stationary on a level surface for 1 second or more (Acceleration sensor check).
3. Turn the absorber control switch from the "NORMAL" to "SPORT" position and return to the "NORMAL" position. (An absorber control switch signal will be input.)

   INPUT SIGNAL TABLE 

   DTC REFERENCE CHART
   
   

   Test Mode DTC	Test Signal
   C1787	Absorber control switch operation (When the mode change signal is input.)
   C1791	Right front acceleration sensor signal (When the vehicle is stopped on a level road for 1 second or more.)
   C1792	Left front acceleration sensor signal (When the vehicle is stopped on a level road for 1 second or more.)
   C1793	Rear acceleration sensor signal (When the vehicle is stopped on a level road for 1 second or more.)

1. Read the DTC(s) by following the tester screen.

   HINT:

   See the list of Test Mode DTCs.

Result 

1. Clear the DTCs (See FAIL-SAFE CHART  ).
2. Check that absorber control indicator light blinks (Test Mode).
3. Turn both the engine switch off and Techstream switch off.

Fig 3: Blinking Pattern Of Absorber Control Indicator Light

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The codes in this table are output only in the test mode (SIGNAL CHECK).