LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1999 >> LX 470 >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Starting System >> Bench Testing >> Solenoid Tests
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Solenoid Tests

CAUTION: DO NOT engage starter solenoid for more than 5 seconds during testing, or damage to coil winding will result.

  1. Pull-In Coil Test

    Disconnect field coil lead from terminal "C". Connect jumper wires from negative battery terminal to terminal "C" and to starter housing. When wire is connected from positive battery terminal to terminal No. 50, clutch pinion gear should extend fully. See Figure or Figure . If clutch pinion gear does not move, replace solenoid. If clutch pinion gear does move, go to next test.

  2. Hold-In Coil Test

    With battery connected as in previous test and clutch pinion gear still extended, disconnect jumper wire from starter terminal "C". See Figure or Figure . Clutch pinion gear should remain extended. If clutch pinion gear does not remain extended, replace solenoid. If clutch pinion gear does remain extended, go to next test.

  3. Drive Pinion Return Test

    Disconnect jumper wire from negative battery terminal to starter housing. See Figure or Figure . Pinion gear should now retract. If it does not retract, replace solenoid.
scientia non olet · About LEMON Manuals