Diagnostic Procedure

SYMPTOM: In-vehicle sensor circuit is open or shorted. (22 or -22 is indicated on auto amp. as a result of conducting Self diagnosis STEP 2.)




1. Check In-vehicle Sensor Circuit Between In-Vehicle Sensor And Body Ground




2. Check In-Vehicle Sensor Circuit Between In-vehicle Sensor And Auto Amp.(LCU)




3. Check In-Vehicle Sensor




4. Check In-Vehicle Sensor Circuit Between Ambient Sensor And Auto Amp.(LCU)