Skid Control ECU Communication Stop Mode [03/2017 - 06/2017]: Procedure
- CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Trouble Codes.
Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
- Check that DTC C1241 which indicates a malfunction in the power source circuit of the vehicle stability control system is not stored by the vehicle stability control system.
Result
Result Proceed to DTC C1241 is not output A DTC C1241 is output B
Result:
B
GO TO DIAGNOSTIC PROCEDURE INDICATED BY OUTPUT DTC. Refer to DTC C1241: Low Power Supply Voltage Malfunction [03/2017 - 06/2017]
Result:
A
See step 2
- 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 [03/2017 - 06/2017]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.