Lexus ES manuals

Lexus ES: 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 Solenoid Power Supply System Malfunction

Displayed

Prohibited

Yes

Engine switch off

C1241

Low or High Power Supply Voltage

Displayed

Prohibited

Yes

Engine switch off

C1280

Engine Circuit Malfunction

Displayed

Partially permitted

Yes

Engine switch off

C1296

ABS Malfunction

Displayed

Prohibited

Yes

Engine switch off

C1297

Steering Angle Sensor

Displayed

Partially permitted

Yes

Engine switch off

C1298

Linear Solenoid Circuit

Displayed

Prohibited

Yes

Engine switch off

C1299

Cancellation of 4WD Control

Displayed

Prohibited

Yes

Engine switch off

C1337

Diameter of the Tire is not Uniform

Displayed

Prohibited

Yes

Engine switch off

U0073

Control Module Communication Bus Off

Displayed

Prohibited

Yes

Communication returned to normal

U0100

Lost Communication with ECM / PCM "A"

Displayed

Partially permitted

Yes

Communication returned to normal

U0126

Lost Communication with Steering Angle Sensor Module

Displayed

Partially permitted

Yes

Communication returned to normal

U0129

Lost Communication with Brake System Control Module

Displayed

Prohibited

Yes

Communication returned to normal

READ NEXT:

 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) When a DTC is stored, the 4WD ECU assembly stores the current vehicle state as Freeze Frame Data. HINT: Freeze Frame Data at the time a DTC is stored: When t

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD System. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP

 Parts Location

PARTS LOCATION ILLUSTRATION *1 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU *2 ECM *3 FRONT SPEED SENSOR LH *4 FRONT SPEED SENSOR RH *5 REAR SKID CONTROL SENSOR LH *6 REAR

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 Headlight Beam Level Control Motor LH Lost Communication (B2424,B2425)

DESCRIPTION Each headlight ECU sub-assembly and headlight leveling motor communicate via LIN communication. The headlight leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective headlight ECU sub-assembly and sends its operating stat

 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST 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

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