Open in Bus 2 Main Bus Line [11/2017 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) BRANCH LINES)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the O145 central gateway ECU (network gateway ECU) connector.
*a Front view of wire harness connector
(to Central Gateway ECU (Network Gateway ECU)) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition O145-18 (CA4H) - O145-17 (CA4L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
Result:
OK
See step 2
- CHECK FOR OPEN IN CAN BUS LINES (COMBINATION METER ASSEMBLY)
- Reconnect the O145 central gateway ECU (network gateway ECU) connector.
- Disconnect the O3 combination meter assembly connector.
*a Front view of wire harness connector
(to Combination Meter Assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition O3-29 (CANH) - O3-30 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Result
Result OK NG
Result:
OK
REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [09/2014 - ]
Result:
NG
See step 3
- CHECK FOR OPEN IN CAN BUS LINES (ECM)
- Reconnect the O3 combination meter assembly connector.
- Disconnect the A78 ECM connector.
*a Front view of wire harness connector
(to ECM) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A78-13 (CANH) - A78-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Result
Result OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [09/2014 - ]
Result:
NG
See step 4
- CHECK FOR OPEN IN CAN BUS LINES (NO. 1 CAN JUNCTION CONNECTOR)
- Reconnect the A78 ECM connector.
- Disconnect the O104 No. 1 CAN junction connector.
*a Front view of wire harness connector
(to No. 1 CAN Junction Connector)*b to No. 2 CAN Junction Connector *c to Combination Meter Assembly - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Connected to O104-1 (CANH) - O104-11 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 2 CAN junction connector O104-2 (CANH) - O104-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Combination meter assembly Result
Result Proceed to OK A NG (Line to No. 2 CAN junction connector) B NG (Line to combination meter assembly) C
Result:
A
REPLACE NO. 1 CAN JUNCTION CONNECTOR
Result:
C
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 1 CAN JUNCTION CONNECTOR)
Result:
B
See step 5
- CHECK FOR OPEN IN CAN BUS LINES (NO. 2 CAN JUNCTION CONNECTOR)
- Reconnect the O104 No. 1 CAN junction connector.
- Disconnect the O105 No. 2 CAN junction connector.
*a Front view of wire harness connector
(to No. 2 CAN Junction Connector)*b to No. 1 CAN Junction Connector *c to ECM - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Connected to O105-1 (CANH) - O105-11 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 1 CAN junction connector O105-3 (CANH) - O105-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω ECM Result
Result Proceed to OK A NG (Line to No. 1 CAN junction connector) B NG (Line to ECM) C
Result:
A
REPLACE NO. 2 CAN JUNCTION CONNECTOR
Result:
B
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 2 CAN JUNCTION CONNECTOR)
Result:
C
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM - NO. 2 CAN JUNCTION CONNECTOR)