Skid Control ECU Communication Stop Mode [10/2020 - ]: Procedure
- CHECK VEHICLE TYPE
- Check vehicle type.
Result
Result Proceed to w/o Electric Parking Brake System A w/ Electric Parking Brake System B
Result:
B
See step 4
Result:
A
See step 2
- Check vehicle type.
- CHECK FOR OPEN IN CAN BUS LINES (BRAKE ACTUATOR ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the A33 brake actuator assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A33-26 (CANH) - A33-14 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω *a Front view of wire harness connector
(to Brake Actuator Assembly)Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY)
Result:
OK
See step 3
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A33-38 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω *a Front view of wire harness connector
(to Brake Actuator Assembly) - Reconnect the cable to the negative (-) battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition A33-28 (IG1) - Body ground Ignition switch ON 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [10/2020 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR OPEN IN CAN BUS LINES (BRAKE ACTUATOR ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the A34 brake actuator assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A34-5 (CANH) - A34-19 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω *a Front view of wire harness connector
(to Brake Actuator Assembly)Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY)
Result:
OK
See step 5
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A34-46 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω *a Front view of wire harness connector
(to Brake Actuator Assembly) - Reconnect the cable to the negative (-) battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition A34-36 (IG1) - Body ground Ignition switch ON 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [10/2020 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.