Lexus ES: Front Wheels Speed Sensor Signal Malfunction (C1783)
Lexus ES (XZ10) Service Manual / Suspension / Suspension Control / Adaptive Variable Suspension System / Front Wheels Speed Sensor Signal Malfunction (C1783)
DESCRIPTION
The speed sensors monitor the speed of the wheels and send an appropriate speed signal to the absorber control ECU through the skid control ECU (brake actuator assembly).
If a malfunction occurs in either a front speed sensor or rear speed sensor, DTC C1783 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| C1783 | Front Wheels Speed Sensor Signal Malfunction | A speed sensor malfunction signal from the skid control ECU (brake actuator assembly) is detected for 1 second or more. | Electronically controlled brake system | Does not come on | Yes |
PROCEDURE
| 1. | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
(a) Go to electronically controlled brake system.
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SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the lane control system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. PRE-CHECK (a) Measure the auxiliary battery voltage with the power switch off. Standar
Components
COMPONENTS ILLUSTRATION *1 BATTERY CLAMP SUB-ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 TRANSMISSION CONTROL CABLE ASSEMBLY *2 TRANSMISSION CONTROL SHAFT LEVER *3 PARK/NEUTRAL POSITION SWITCH ASSEMBLY *4 WASHER Tighteni
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