Inspection

CAN Communication Circuit Check

INSPECTION

1. GROUND SHORT INSPECTION






NOTE: Main wiring harness or related lines may be shorted to ground, or shorted to ground in one of the control modules.

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2. BATTERY SHORT INSPECTION






NOTE: Main wiring harness or related lines may be shorted to battery circuit, or shorted to battery circuit in one of the control modules.

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Step 2-3:

3. 56 - 64 ohms






NOTE: When the measured resistance value is 56 - 64 ohms, main wiring harness or related lines may be shorted to ground, or shorted to power supply line, or related line may be open.

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Step 2-6:

4. 55 ohms OR LESS






NOTE: When the bus line is measured, combined resistance of end resistance (120 ohms) in ECM and end resistance (120 ohms) in VDC CM can be measured. The combined resistance is approximately 56 - 64 ohms. When the measured resistance value is 55 ohms or less, main wiring harness or related lines may be shorted, or combined resistance may have changed because resistance other than end resistance is created on the circuit.

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5. 65 ohms OR MORE






NOTE: When CAN communication circuit is measured, combined resistance of end resistance (120 ohms) in ECM and end resistance (120 ohms) in VDC CM can be measured. The combined resistance is approximately 56 - 64 ohms. When the measured resistance value is 65 ohms or more, either of end resistance or main wiring harness may have malfunction such as open circuit.

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Step 2-5:

6. 56 - 64 ohms (TCM)






NOTE: Perform inspection when no data is received, or faulty is detected. This is different from power supply shorted or ground shorted.

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7. RELATED LINES 56 - 64 ohms (STEERING ANGLE SENSOR)

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8. 56 - 64 ohms (A/C CM)

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9. 56 - 64 ohms (ELECTRONIC PARKING CM)

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10. 56 - 64 ohms (COMBINATION METER)

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11. 56 - 64 ohms (SECURITY CM)

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