Terminal and Connector Inspection
1.

Many malfunctions in the electrical system are caused by poor harness 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?

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

▶ Go to "W/Harness Inspection" procedure.

CAN register and communication line inspection
■CAN register and communication line inspection 1
1.

IG KEY OFF.

2.

Connect ECM/PCM, EPS, TPMS, ESP/ESC connector.

3.

Measure registance between terminal 3 and 11 of diagnostic connector.

Specification : About 60Ω

4.

Is the measured resistance within specifications?

▶ Check 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.

▶ If the measured value is out of specification, repair or replace 120Ω CAN register(Inside of ECM/PCM and Cluster) and then, go to "Verification of Vehicle Repair" procedure.

▶ If the measured value is lower than 10Ω, repair or replace CAN High and CAN Low are short each other. And then, go to "Verification of Vehicle Repair" procedure.

▶ If the measured value is ∞ Ω, repair or replace the open in CAN High/CAN Low circuit. And then, go to 'Verification of Vehicle Repair" procedure.

▶ Go to next procedure.

CAN communcation line inspection
■ Check short to battery in CAN communication line
1.

IG key "OFF".

2.

Disconnect ECM/PCM, EPS, TPMS, ESP/ESC, FATC connector.

3.

IG KEY "ON".

4.

Measure voltage between CAN high terminal(

10.

Is the measured value within specification?

▶ Check ECM/PCM, EPS, TPMS, ESP/ESC, FATC connectors 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.

▶ 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.

Яндекс.Метрика