Lexus ES manuals

Lexus ES: Data List / Active Test

DATA LIST / ACTIVE TEST

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.

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.

DATA LIST OF 4WD ECU ASSEMBLY

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Four Wheel Drive / Data List.

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

Chassis > Four Wheel Drive > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

4WD Warning Light

AWD warning (multi-information display)

OFF or ON

OFF: Warning off

ON: Warning on

-

Stop Light SW

Stop light switch

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed

-

Forward and Rearward G

Forward and Rearward G

Min.: -25.10 m/s2

Max.: 24.90 m/s2

Approximately 0 +/-0.13 m/s2 while stationary

Changes in proportion with acceleration during acceleration/deceleration.

Steering Angle Value

Steering angle value

Min.: -3276.8°

Max.: 3276.7°

Increase: Left turn

Decrease: Right turn

Changes in proportion with the amount of steering wheel rotation during steering operation.

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

0 km/h (0 mph): Vehicle stopped

No large fluctuations when driving at a constant speed.

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

0 km/h (0 mph): Vehicle stopped

No large fluctuations when driving at a constant speed.

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

0 km/h (0 mph): Vehicle stopped

No large fluctuations when driving at a constant speed.

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

0 km/h (0 mph): Vehicle stopped

No large fluctuations when driving at a constant speed.

Inspection Mode

Inspection mode

Other or Inspect

Other: Normal mode

Inspect: Inspection mode

-

SLC Solenoid Current

SLC solenoid (4WD linear solenoid) current

Min.: 0.00 A

Max.: 3.00 A

0.00 to 3.00 A

-

Number of DTC

Number of DTC recorded

0 to 255

0

-

ACTIVE TEST OF 4WD ECU ASSEMBLY

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) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Four Wheel Drive / Active Test.

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

Chassis > Four Wheel Drive > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

4WD Warning Light

AWD warning (multi-information display)

Warning ON/OFF

Observe combination meter assembly

READ NEXT:

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Dynamic Torque Control AWD System DTC No. Detection Item Link C120C Linear Solenoid Power Supply System Malfunction C1241 Low or High Power Supply

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Check the DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Read the DTCs following the prompts on the T

 Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE CHART Dynamic Torque Control AWD System DTC No. Trouble Area AWD Warning Message Fail-safe Operation Memory Fail-safe Deactivation Condition C120C Linear S

SEE MORE:

 Installation

INSTALLATION PROCEDURE 1. INSTALL LUGGAGE COMPARTMENT DOOR WEATHERSTRIP (a) Make sure to remove any non-drying sealant from the installation surfaces on the vehicle body. NOTICE: If there is any non-drying sealant remaining on the vehicle body, the luggage compartment door weatherstrip may not be

 Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL SST (w/o AVS) (a) Align the slot on end of the shock rod of the front shock absorber assembly as shown in the illustration. NOTICE:

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