Solenoid Tests
CAUTION:
DO NOT engage starter solenoid for more than 5 seconds during testing, or damage to coil winding will result.
- 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 Fig 1 or Fig 4 . If clutch pinion gear does not move, replace solenoid. If clutch pinion gear does move, go to next test. - 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 Fig 2 or Fig 5 . 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. - Drive Pinion Return Test
Disconnect jumper wire from negative battery terminal to starter housing. See Fig 3 or Fig 6 . Pinion gear should now retract. If it does not retract, replace solenoid.
Fig 1: Solenoid Pull-In Coil Test (Avalon, Camry & Sienna Shown; Corolla, Highlander, Sequoia, Tacoma V6, Tundra & 4Runner V6 Are Similar)
Fig 2: Solenoid Hold-In Coil Test (Avalon, Camry & Sienna Shown; Corolla, Highlander, Sequoia, Tacoma V6, Tundra & 4Runner V6 Are Similar)
Fig 3: Solenoid Drive Pinion Return Test (Avalon, Camry, Camry Solara & Sienna Shown; Corolla, Highlander, Sequoia, Tacoma V6, Tundra & 4Runner V6 Are Similar)
Fig 4: Solenoid Pull-In Coil Test (Celica Shown; ECHO, MR2, Land Cruiser, LX 470, RAV4, & Tacoma 4-Cyl. Are Similar)