CAN communication line inspection
- Check Short to Battery in CAN Communication Line
- Ignition OFF.
- Disconnect all related module connectors.
- Ignition ON.
- Measure voltage between CAN high terminal of diagnostic connector and chassis ground.
- Measure voltage between CAN low terminal of diagnostic connector and chassis ground.
Specification: Approx. 0V
- Check Short to Ground in CAN Communication Line
- Ignition OFF.
- Disconnect all related module connectors.
- Measure resistance between CAN high terminal of diagnostic connector and chassis ground.
- Measure resistance between CAN low terminal of diagnostic connector and chassis ground.
Specification: Infinity
- Is the measured value within specification?
YES
Check open in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check ECM/PCM, MDPS, TPMS, ABS and Each Module connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
Check short to battery in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check short to ground in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.