STEP 1. Check the GW-CAN-C. Voltage measurement at gateway-ECU connector.
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect the gateway-ECU connector and BSW-ECU (master) connector, and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between the gateway-ECU connector terminal No.6 (CAN_H) and body ground.OK: 4.0 V or less
(4) Voltage between the gateway-ECU connector terminal No.5 (CAN_L) and body ground.OK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 2. <More than 4.0 V> Repair intermediate connectors, or the wiring harness between the gateway-ECU connector and the BSW-ECU (master) connector.