Motor Generator Control ECU Communication Stop Mode [12/2021 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR OPEN IN CAN BUS WIRE (INVERTER WITH CONVERTER ASSEMBLY BRANCH WIRE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the inverter with converter assembly connector.
*a Front view of wire harness connector
(to Inverter with Converter Assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A87-22 (CANH) - A87-31 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω A87-24 (CNH2) - A87-33 (CNL2) 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)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A87-9 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω A87-8 (GND2) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω *a Front view of wire harness connector
(to Inverter with Converter Assembly) - 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 [12/2021 - 10/2022] , or refer to INITIALIZATION [10/2022 - 10/2023] , or 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 A87-35 (+B2) - Body ground Ignition switch ON 11 to 14 V Ignition switch off Below 1 V A87-36 (+B) - Body ground Ignition switch ON 11 to 14 V Ignition switch off Below 1 V A87-26 (IGCT) - Body ground Ignition switch ON 11 to 14 V Ignition switch off Below 1 V Result
Proceed to OK NG
Result:
OK
REPLACE MG ECU (REPLACE INVERTER WITH CONVERTER ASSEMBLY)
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Measure the resistance according to the value(s) in the table below.