Motor Generator Control ECU Communication Stop Mode [11/2021 - ]: Procedure
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- CHECK FOR OPEN IN CAN BUS LINES (INVERTER WITH CONVERTER ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A47 inverter with converter assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A47-22 (CANH) - A47-31 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY)
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 A47-9 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω - Reconnect the cable to the negative (-) auxiliary battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition A47-35 (+B2) - Body ground Ignition switch ON 11 to 14 V A47-36 (+B) - Body ground Ignition switch ON 11 to 14 V A47-26 (IGCT) - Body ground Ignition switch ON 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE MG ECU (REPLACE INVERTER WITH CONVERTER ASSEMBLY)
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.