FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Component Tests






Component Tests

Ignition Switch Continuity Test






Disconnect the multiple connector from the ignition switch. Test the ignition switch continuity as described in the following illustration. Connect a self-powered test lamp or ohmmeter between the blade terminals indicated on the chart in the illustration. No continuity between any blade and the ground terminal should exist in any ignition switch position except the proof and ground pins (P-1, P-2 and GND) in the START position only.






For an "engine won't crank" condition, determine if the condition exists with the gearshift lever in both the PARK and NEUTRAL positions before performing the ignition switch continuity test. If the "no-crank" condition occurs in one shift lever position but not the other, a more probable cause is the transmission range (TR) sensor located on the transaxle.

Ignition Switch Mechanical Test

Test the mechanical operation of the ignition switch by rotating the ignition switch through all positions. The movement should feel smooth with no sticking or binding. The ignition switch should return from the START position back to the RUN position without assistance (spring return). If sticking or binding is encountered, check the following:

- Burrs on the lock cylinder key.

- Binding ignition switch lock cylinder.

- Steering column shroud rubbing against ignition switch lock cylinder.

- Burrs or foreign material around rack-and-pinion actuator in lock cylinder housing.

- Insufficient lubricant on actuator.

Note: Do not apply lubricant to inside of the ignition switch.

- Binding ignition switch.

Multi-Function Switch Continuity Test

Test for electrical malfunctions with continuity tester and an ohmmeter, such as Rotunda 88 Digital Multimeter 105-00053 or equivalent.
















Refer to the diagnostic charts and the illustration to resolve concerns with the multi-function switch.