W/Harness Inspection

Motor driven Power Steering
C1616 CAN Bus Off - W/Harness Inspection

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 all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
3. Has a problem been found?






CAN register and communication line inspection

CAN register and communication line inspection 1
1. IG KEY OFF.
2. Connect PCM, EPS, TPMS, ESC connector.
3. Measure registance between terminal 3 and 11 of diagnostic connector.

Specification : About 60 Ohms








4. Is the measured resistance within specifications?






CAN communication line inspection

Check short to battery in CAN communication line.
1. IG key "OFF".
2. Disconnect PCM, EPS, TPMS, ESC, FATC connector
3. IG KEY "ON"
4. Measure voltage between CAN high terminal (# 3) of diagnostic connector and chassis ground
5. Measure resistance between CAN high terminal (# 11) of diagnostic connector and chassis ground.

Specification : About 0 V

Check short to ground in CAN communication line
1. IG key "OFF".
2. Disconnect PCM, EPS, TPMS, ESC, FATC connector
3. Measure resistance between CAN high terminal (# 3) of diagnostic connector and chassis ground.
4. Measure resistance between CAN high terminal (# 11) of diagnostic connector and chassis ground.

Specification : Infinity Ohms








5. Is the measured value within specification?