DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
Note
When replacing the skid control ECU (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve Click here.
PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
Check if CAN communication system DTCs are output (See page for w/ Central Gateway ECU or Click here for w/o Central Gateway ECU).
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
B |
INSPECT CAN COMMUNICATION SYSTEM Click here |
C |
INSPECT CAN COMMUNICATION SYSTEM Click here |
A |
PERFORM ACTIVE TEST USING GTS (BRAKE WARNING LIGHT / YELLOW (MINOR MALFUNCTION))
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Select the Active Test on the GTS Click here.
Tester Display | Test Part | Control Range | Diagnostic Note |
---|---|---|---|
ECB* Warning Light | Brake warning light / yellow (minor malfunction) | Warning light ON/OFF | Observe combination meter assembly |
*: Electronically Controlled Brake System
Check that the brake warning light / yellow (minor malfunction) on the combination meter assembly turns on or off in accordance with GTS operation.
OK |
---|
The brake warning light / yellow (minor malfunction) turns on or off in accordance with GTS operation. |
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
Tech Tips
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part Click here.
A |
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here |
B |
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here |
C |
INSPECT COMBINATION METER ASSEMBLY
Turn the power switch off.
Perform the Active Test of the combination meter assembly (meter CPU) using the GTS Click here.
Check the combination meter assembly.
OK |
---|
The brake warning light / yellow (minor malfunction) turns on or off in accordance with GTS operation. |
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
Tech Tips
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part Click here.
A |
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here |
B |
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here |
C |
REPLACE COMBINATION METER ASSEMBLY Click here |