Brad's Car Manuals: A 3rd party mirror of CHARM + LEMON car manuals
Home >> Lexus >> 1998 >> LS 400 >> Repair and Diagnosis >> Electrical >> Starter >> On-Vehicle Testing >> Circuit Test >> LS400

Circuit Test: LS400

Download the full database via torrent (~1.1 TB)
  1. Remove starter relay from underhood junction block. Check for battery voltage at junction block relay cavity terminal No. 5. Turn ignition to START. Check for battery voltage at junction block relay cavity terminal No. 2.
  2. Turn ignition off. Check for continuity between junction block relay cavity terminal No. 1 and ground. Check for continuity between junction block relay cavity terminal No. 3 and starter terminal No. 1 (Black wire).
  3. Remove right kick panel. Using DVOM, backprobe ECM 28-pin connector E11 terminal 17 (Black wire). See Fig 1. Check for voltage with ignition in START position.
  4. Check for faulty starter relay, park/neutral position switch, or wiring harness. Repair as necessary.
Fig 1: Measuring Voltage At ECM Connector E11 (LS400)
G98A04734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About Brad's Car Manuals