Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition.

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 and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection" procedure.

IG "ON" & Engine "OFF"

Measure voltage between power terminal of Left/Right Height sensor/ Pressure sensor and chassis ground.

Is the measured value within specifications?

	▶ Substitute with a known-good ALS ECU and check for proper operation. If problem is corrected, replace ALS ECU and then go to "Verification of Vehicle Repair" procedure.
	▶ Repair short in power circuit between ALS ECU and Left/Right Height sensor/ Pressure sensor, and then go to "Verification of vehicle Repair" procedure.