Lexus ES: Slip Indicator Light does not Come ON
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".
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PROCEDURE
| 1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication system DTCs are output.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B | .gif) | INSPECT CAN COMMUNICATION SYSTEM |
|
| 2. | PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT) |
(a) Select the Active Test on the Techstream.
Click here
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Slip Indicator Light | Slip indicator light | Indicator light ON/OFF | Observe combination meter assembly |
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Slip Indicator Light | Slip indicator light | ON or OFF | ON: Indicator light on OFF: Indicator light off | - |
| Active Test Display |
|---|
| Slip Indicator Light |
| Data List Display |
|---|
| Slip Indicator Light |
(b) Check the operating condition of the slip indicator light when operating it using the Techstream.
| Result | Proceed to |
|---|---|
| Slip indicator light in the Data List does not change using the Active Test. | A |
| Slip indicator light in the Data List turns ON/OFF using the Active Test. | B |
| A | | REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY |
|
| 3. | INSPECT COMBINATION METER ASSEMBLY |
(a) Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream.
Click here
| Tester Display |
|---|
| Slip Warning |
(b) Check that the slip indicator light turns on or off in accordance with the Active Test.
OK:
The slip indicator light turns on or off in accordance with Techstream operation.
| OK | | REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY |
| NG | | INSPECT METER / GAUGE SYSTEM |
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Slip Indicator Light Remains ON
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication. If the skid control ECU (brake booster with master
System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Skid control ECU (Brake booster with master cylinder assembly) Power steering ECU (Rack an
Terminals Of Ecu
TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU (Brake Booster with Master Cylinder Assembly)) - - Terminal No. (Symbol) Terminal Descripti
SEE MORE:
Reassembly
REASSEMBLY PROCEDURE 1. INSTALL FUEL PUMP WITH FILTER ASSEMBLY HINT: Perform "Inspection After Repair" after replacing the fuel pump with filter assembly. Click here (a) Apply gasoline to a new O-ring. Then install the O-ring and fuel pump spacer to the fuel pump. *1 O-ring
Removal
REMOVAL PROCEDURE 1. REMOVE REAR NO. 1 FLOOR BOARD (for 2GR-FKS) (a) Remove the 4 clips (A). (b) Disengage the 3 grommets (B) and 2 clips (C) to remove the rear No. 1 floor board. 2. REMOVE REAR FLOOR SIDE MEMBER COVER (for A25A-FXS) (a) Remove the bolt and 8 clips (A).
