W/Harness Inspection

Auto Headlamp Leveling
C1212 Vehicle Speed Sensor Failure - Inspection/Repair:_: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 connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
3. Has a problem been found?






Signal circuit Inspection

Check vehicle speed sensor
1. Ignition "OFF"
2. Disconnect Auto Head Lamp Leveling Sensor harness connector.
3. After lifting up the vehicle, keep the engine "ON" for measurement condition.
4. Measure signal waveform at AHLS ECU harness connector.

Specification :Signal Waveform & Data




5. Is "waveform" measured near the specified form in General information?