9881712

Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

	▶ Repair as necessary, go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Signal Circuit Inspection" as below.

IG key "ON", Engine "ON".

Set the shift lever in "D" range, move vehicle slowly to recognize the obstacles.

Perform "Oscilloscope" procedure in the "Vehicle S/W Management" with GDS.

Measure the signal waveform between "LIN LINE" terminal of "FRONT PARKING ASSIST SENSOR LH (OUT)" harness connector and chassis ground.

Reference data

Does the measured signal waveform follow the reference data?

▶ Fault is intermittent caused by poor contact in "FRONT PARKING ASSIST SENSOR LH (OUT)"'s connector.

→ Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

→ Repair or replace as necessary, go to "Verification of Vehicle Repair" procedure.

▶ If the voltage of measured signal waveform is the battery voltage level(about 12V),

→ Check LIN line short to battery.

→ Check LIN line open/poor connection.

▶ If the voltage of measured signal waveform is the ground voltage level(about 0V), check LIN line short to ground.

▶ If the signal waveform is abnormal, check for foreign substance around sensor, trapped sensor rubber.