STEP 2. Check the CAN-C (Main) for short to ground. Resistance measurement at gateway-ECU connector C-49.
caution | - A digital multimeter should be used. For details refer to .
- The test wiring harness should be used. For details refer to .
- When measuring the resistance, disconnect the negative battery terminal. For details refer to .
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(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Ensure that the negative battery terminal is disconnected.
(3) Resistance between gateway-ECU connector C-49 terminal No.3 (CAN_H) and body groundOK: 1 kΩ or more
(4) Resistance between gateway-ECU connector C-49 terminal No.2 (CAN_L) and body groundOK: 1 kΩ or more
Is the check result normal?
<Resistance value is 1 kΩ or more in both CAN_H and CAN_L> :
Go to Step 3. <Resistance value is less than 1 kΩ in either CAN_H or CAN_L> :
Perform diagnosis item 4 "Diagnose shorts in the ground to CAN-C". Refer to .