| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001G799 |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): Slip Indicator Light does not Come ON; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
|
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".
Click here
![2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
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 |
|
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT) |
(a) Select the Active Test on the Techstream.
Click here
Chassis > ABS/VSC/TRAC > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Slip Indicator Light |
Slip indicator light |
Indicator light ON/OFF |
Observe combination meter assembly |
Chassis > ABS/VSC/TRAC > Data List
|
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 |
- |
Chassis > ABS/VSC/TRAC > Active Test
|
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 |
|
|
|
3. |
INSPECT COMBINATION METER ASSEMBLY |
(a) Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream.
Click here
Body Electrical > Combination Meter > Active Test
|
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 |
|
| NG |
|
|
|