Plugin Charge Control ECU Communication Stop Mode: Procedure

CHECK FOR OPEN IN CAN BUS WIRES (PLUGIN CHARGE CONTROL ECU ASSEMBLY MAIN WIRE)

Disconnect the cable from the negative (-) auxiliary battery terminal.
Disconnect the plugin charge control ECU assembly connector.

Fig 1: Identifying S31 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
S31-25 (CA1H) - S31-26 (CA1L)	Cable disconnected from negative (-) auxiliary battery terminal	108 to 132 Ω

TEXT IN ILLUSTRATION

*a	Rear view of wire harness connector (to Plugin Charge Control ECU Assembly)

NG → REPAIR OR REPLACE CAN MAIN BUS WIRE OR CONNECTOR (PLUGIN CHARGE CONTROL ECU ASSEMBLY MAIN WIRE)

OK: Go to next step

CHECK PLUGIN CHARGE CONTROL ECU ASSEMBLY POWER SOURCE CIRCUIT
1. Check the plugin charge control ECU assembly power source circuit. Refer to ECU Power Source Circuit .
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

OK → See step 3
REPLACE PLUGIN CHARGE CONTROL ECU ASSEMBLY. Refer to REMOVAL