Operation CHARM: Car repair manuals for everyone.

W/Harness Inspection





AFLS(LED)
B1220 Vehicle Speed Sensor - Inspection/Repair:_:W/Harness Inspection

W/Harness 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?





CAN communication circuit inspection (AFLS ECU <-> ABS(VDC) ECU)
1. Ignition "OFF"
2. Disconnect AFLS-ECU connector and ABS(ESC) ECU connector.
3. Measure the resistance between CAN-HIGH terminal of AFLS-ECU harness connector and CAN-HIGH terminal of ABS(ESC)ECU harness connector.
4. Measure the resistance between CAN-LOW terminal of AFLS-ECU harness connector and CAN-LOW terminal of ABS((ESC)ECU harness connector.

Specification :below 1Ohms




5. Is the measured resistance within specification ?