Inspection Procedure
NOTE:
Turn the ignition switch off before measuring the resistances of CAN bus main wires and CAN bus branch wires.
- CHECK DLC3
- Turn the ignition switch off.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFIED CONDITIONSTester Connection Condition Specified Condition D1-6 (CANH) - D1-14 (CANL) Ignition switch off 108 to 132 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Result
RESULT CHARTResult Proceed to 108 to 132 Ω A 132 Ω or higher B NOTE: When the measured value is 133 Ω or more and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again from "HOW TO PROCEED WITH TROUBLESHOOTING " after repairing the trouble area.
B : REPAIR OR REPLACE DLC3 BRANCH WIRE OR CONNECTOR (CANH, CANL)
A: Go to next step
- CHECK FOR OPEN IN CAN BUS MAIN WIRE (ECM MAIN WIRE)
- Turn the ignition switch off.
- Disconnect the ECM connector (E5).
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFIED CONDITIONSTester Connection Condition Specified Condition E5-15 (CANH) - E5-31 (CANL) Ignition switch off 108 to 132 Ω
NG: Go to step 3
OK: REPLACE ECM (See REMOVAL )
- CHECK FOR OPEN IN CAN BUS MAIN WIRE (SKID CONTROL ECU MAIN WIRE)
- Reconnect the ECM connector.
- Disconnect the skid control ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFIED CONDITIONSTester Connection Condition Specified Condition S1-11 (CANH) - S1-25 (CANL) Ignition switch off 108 to 132 Ω
NG: Go to step 4
OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (See REMOVAL )
- CHECK FOR OPEN IN CAN BUS MAIN WIRE (CAN JUNCTION CONNECTOR)
- Reconnect the skid control ECU connector.
- Disconnect the CAN junction connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFIED CONDITIONSTester Connection Connect to Condition Specified Condition J11-7 (CANH) - J11-18 (CANL) Skid control ECU Ignition switch off 108 to 132 Ω J11-11 (CANH) - J11-22 (CANL) ECM Ignition switch off 108 to 132 Ω Result
RESULT CHARTResult Proceed to OK A NG (ECM main wire) B NG (Skid control ECU main wire) C
B : REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (JUNCTION CONNECTOR - ECM)
C : REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN JUNCTION CONNECTOR - SKID CONTROL ECU)
A : REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN JUNCTION CONNECTOR)