Bus Buffer ECU Communication Stop Mode [10/2016 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (OPTION CONNECTOR (BUS BUFFER ECU) BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the K102 option connector (bus buffer ECU).
*a Front view of wire harness connector
(to Option Connector (Bus Buffer ECU)) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K102-4 (CAN+) - K102-8 (CAN-) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (OPTION CONNECTOR (BUS BUFFER ECU))
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
*a Front view of wire harness connector
(to Option Connector (Bus Buffer ECU))Standard Resistance
Tester Connection Condition Specified Condition K102-7 (RGN1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω - 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 K102-1 (R+B) - Body ground Always 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE CAN COMPATIBLE OPTIONAL DEVICES
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.