Lexus ES: Master Cylinder Pressure Circuit (C1786)
Lexus ES (XZ10) Service Manual / Suspension / Suspension Control / Adaptive Variable Suspension System / Master Cylinder Pressure Circuit (C1786)
DESCRIPTION
The absorber control ECU stores this DTC when a malfunction signal from the master cylinder pressure sensor built into the brake actuator assembly is received via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| C1786 | Master Cylinder Pressure Circuit | A master cylinder pressure sensor malfunction signal is continuously received from the skid control ECU (brake actuator assembly) for 3 seconds 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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Relay
InspectionINSPECTION PROCEDURE 1. INSPECT ST RELAY (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ
Reassembly
REASSEMBLY 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 REAR LIGHT PROTECTOR (a) Install a new rear light protector. 2. INSTALL REAR LIGHT GASKET (a) Install a new rear lig
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