Operation Check

CHECK ABSORBER CONTROL ACTUATOR OPERATION

Using the SST, connect the terminals TS and CG of the DLC3.
SST 09843-18040
Start the engine.

Fig 1: Identifying DLC3 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 and TS and CG terminal circuit.

TROUBLE AREA - PROCEDURE

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
TS and CG terminal circuit	TS AND CG TERMINAL CIRCUIT

Fig 2: Identifying Blinking Pattern In Test Mode

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check absorber control actuator operation. Starting from the above mentioned position, as the brake pedal is depressed, the absorber control actuator position will increase by 2 steps (1 (SOFT) --> 3 --> 5 --> 7 --> 9 --> 11 --> 15 --> 17 (HARD)). At this time, bounce the vehicle and check that the shock absorber is becoming harder.

HINT:

To hold the absorber control actuator at a specific position, adjust it using the above mentioned procedure, then increase the vehicle speed to 3 mph (5 km/h). After that, the absorber control actuator position does not change until the engine switch is turned off.
If the absorber control actuator does not operate, inspect the absorber control actuator circuit and absorber control actuator installation condition.

Fig 3: Identifying Absorber Control Actuator Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TROUBLE AREA - PROCEDURE

Trouble area	See procedure
Absorber control actuator circuit	DTC C1725 FRONT DAMPING FORCE CONTROL ACTUATOR RH CIRCUIT; DTC C1726 FRONT DAMPING FORCE CONTROL ACTUATOR LH CIRCUIT; DTC C1727 REAR DAMPING FORCE CONTROL ACTUATOR RH CIRCUIT; DTC C1728 REAR DAMPING FORCE CONTROL ACTUATOR LH CIRCUIT
Absorber control actuator installation condition	REMOVAL REMOVAL

Turn the engine switch off.
Remove the SST from terminal TS and CG of the DLC3.
Turn the engine switch on (IG).
HINT:

If the engine switch remains on (IG) after the SST is removed from DLC3, the vehicle will remain in the previously initialized Test Mode.