W/Harness Inspection

Instrument Panel Module
C161600 CAN Bus Off(C-CAN) - Inspection/Repair:_:W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?






C-CAN Communication Inspection

Check resistance of C-CAN communication Line
1. IG KEY OFF.
2. Disconnect battery (-) cable.
3. Disconnect EMS ECU connector.
4. Check resistance between C-CAN LOW signal and C-CAN HIGH signal terminal of disconnected EMS ECU connector.

Specification :Approx. 120 Ohms








5. Is the measured value within specification ?





Check signal waveform of C-CAN LOW sigal circuit and C-CAN HIGH signal
1. IG KEY OFF.
2. Connect battery (-) cable.
3. Connect EMS ECU connector.
4. IG KEY ON.
5. Measure signal waveform of C-CAN LOW signal and C-CAN High signal of IPM connector.

Specification :Signal waveform is as same as standard signal waveform




6. Is the measured value within specification ?