Power Back Door ECU Communication Stop Mode [10/2023 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR OPEN IN CAN BUS WIRE (MULTIPLEX NETWORK DOOR BRANCH WIRE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the multiplex network door ECU connector.
*a Front view of wire harness connector
(to Multiplex Network Door ECU) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition R26-10 (CANP) - R26-20 (CANN) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the multiplex network door ECU connectors.
*a Front view of wire harness connector
(to Multiplex Network Door ECU Assembly)- - - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition R28-4 (GND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω - Reconnect the cable to the negative (-) auxiliary battery terminal.NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Refer to INITIALIZATION [10/2023 - ]
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition R26-7 (ECUB) - Body ground Ignition switch off 11 to 14 V R29-5 (B) - Body ground Ignition switch off 11 to 14 V R26-9 (IG) - Body ground Ignition switch ON 11 to 14 V Ignition switch off Below 1 V Result
Proceed to OK NG
Result:
OK
REPLACE MULTIPLEX NETWORK DOOR ECU
Refer to REMOVAL [10/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Disconnect the multiplex network door ECU connectors.