Toyota 4Runner: Data List / Active Test

Toyota 4Runner Service Manual / Suspension / Suspension Control / Kinetic Dynamic Suspension System / Data List / Active Test

DATA LIST / ACTIVE TEST

1. DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Warm up the engine.

(b) Connect the Techstream to the DLC3.

(d) Turn ON the Techstream.

(e) Enter the following menus: Chassis / KDSS / Data List.

(f) According to the display on the Techstream, read the Data List.

KDSS

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Oil Pressure Sensor	Oil pressure sensor/ Min.: -784.79 MPa (-8002.66 kgf/cm2, -113794.55 psi) Max.: 784.76 MPa (8002.35 kgf/cm2, 113790.20 psi)	2.6 MPa (26.5 kgf/cm2, 377 psi) to 3.0 MPa (30.6 kgf/cm2, 435 psi): When vehicle stopped and fluid temperature 20°C (68°F)	-
Acceleration Sensor	Lateral G/ Min.: -1176.37 m/s2 Max.: -1176.33 m/s2	-	Changes in proportion with acceleration during turning.
Stop Light Switch	Stop light switch/ ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
TC Terminal	TC terminal/ ON or OFF	OFF	-
TS Terminal	TS terminal/ ON or OFF	OFF	-
FR Wheel Speed	Front wheel RH speed/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual wheel speed	No large fluctuations when driving at a constant speed.
FL Wheel Speed	Front wheel LH speed/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual wheel speed	No large fluctuations when driving at a constant speed.
RR Wheel Speed	Rear wheel RH speed/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual wheel speed	No large fluctuations when driving at a constant speed.
RL Wheel Speed	Rear wheel LH speed/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual wheel speed	No large fluctuations when driving at a constant speed.
IG Power Source Voltage	IG power source voltage/ Min.: 0.0 V Max.: 25.5 V	Ignition switch ON: 11 to 14 V	-
Steering Angle	Steering angle/ Min.: -49152.0 deg Max.: 49150.5 deg	-	Changes in proportion with the amount of steering wheel rotation during steering operation.
Compatible Constant Information	Compatible constant information/ Min.: 0 Max.: 255	-	-
Design Constant Information	Design constant information/ Min.: 0 Max.: 255	-	-
Accumulator Valve (Downside)	Stabilizer control solenoid valve (for Upper Chamber)/ ON or OFF	ON: Stabilizer control solenoid valve closed OFF: Stabilizer control solenoid valve open	-
Accumulator Valve (Upside)	Stabilizer control solenoid valve (for Lower Chamber)/ ON or OFF	ON: Stabilizer control solenoid valve open OFF: Stabilizer control solenoid valve closed	-
Number of Trouble Codes	Number of trouble codes/ Min.: 0 Max.: 255	0	-

2. ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Warm up the engine.

(b) Connect the Techstream to the DLC3.

(d) Turn ON the Techstream.

(e) Enter the following menus: Chassis / KDSS / Active Test.

(f) According to the display on the Techstream, perform the Active Test.

KDSS

Tester Display	Test Part	Control Range	Diagnostic Note
Accumulator Valve (Upside)	Stabilizer control solenoid valve (for Upper Chamber)	Valve ON / OFF	The operating sound of the solenoid (clicking sound) can be heard. ON: Data List ON OFF: Data List OFF When the Active Test is performed, the solenoid turns on for 3 seconds.
Accumulator Valve (Downside)	Stabilizer control solenoid valve (for Lower Chamber)	Valve ON / OFF	The operating sound of the solenoid (clicking sound) can be heard. ON: Data List ON OFF: Data List OFF When the Active Test is performed, the solenoid turns on for 3 seconds.

Tester Display

Test Part

Control Range

Diagnostic Note

Accumulator Valve (Upside)

Stabilizer control solenoid valve (for Upper Chamber)

Valve ON / OFF

The operating sound of the solenoid (clicking sound) can be heard.

ON: Data List ON

OFF: Data List OFF

When the Active Test is performed, the solenoid turns on for 3 seconds.

Accumulator Valve (Downside)

Stabilizer control solenoid valve (for Lower Chamber)

Valve ON / OFF

The operating sound of the solenoid (clicking sound) can be heard.

ON: Data List ON

OFF: Data List OFF

When the Active Test is performed, the solenoid turns on for 3 seconds.

Fail-safe Chart

FAIL-SAFE CHART 1. FAIL-SAFE FUNCTION (a) If the stabilizer control ECU detects a malfunction, the fail-safe functions shown in the table below operate. Malfunction Item Fai ...

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART NOTICE: Turn the ignition switch off before removing parts. HINT: If no abnormality is found when inspecting parts, inspect the stabilizer control ECU and ...

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