Component Tests

Ignition Switch Continuity Test

Disconnect the multiple connector from the ignition switch . Test the 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 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 shift control selector lever knob (7213) 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 MLP sensor located on the transmission.

Ignition Switch Mechanical Test

Test the mechanical operation of the ignition switch by rotating the ignition switch through all switch 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 lube on actuator.

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

• Binding ignition switch.

Turn Signal and Windshield Wiper Switch Continuity Test

Test for electrical malfunctions using a continuity tester and an ohmmeter, such as Rotunda Digital Volt Ohmmeter 007-00001 or equivalent.

Refer to the diagnostic charts and the illustration to resolve concerns with the turn signal and windshield wiper switch.

TURN SIGNAL AND WINDSHIELD WIPER SWITCH CONTINUITY TEST

SWITCH ACTUATOR POSITION	CONTINUITY BY CIRCUIT NUMBER
Turn Signal Lever in Neutral—  Hazard OFF	Turn Signal:  Closed 810 to 5 and 9; 298 to 383.  Open 810 to 2, 3, 44 and 385: 44 to 2, 3, 5, 9;   385 to 383. Cornering Lamp:  Open 15 to 379 and 380; 379 to 380.
Turn Signal Lever in Left Turn—  Hazard OFF	Turn Signal:  Closed 810 to 5; 44 to 3 and 9; 298 to 383.  Open 810 to 3, 9, 44; 44 to 2, 5 ; 385 to 383 Cornering Lamp:  Closed 15 to 380.  Open 15 to 379; 379 to 380.
Turn Signal Lever in Right Turn—  Hazard OFF.	Turn Signal:  Closed 810 to 9; 44 to 2 and 5; 298 to 383.  Open 810 to 2, 5, 44; 44 to 3, 9 and 385; 385 to 383. Cornering Lamp:  Closed 15 to 380.  Open 15 to 379; 379 to 380.
Hazard ON	Closed 44 to 2, 3, 5 and 9; 385 to 383. Open 810 to 5, 9, 44, 2 and 3; 298 to 383.
Hazard OFF  Turn Signal Lever, Right Turn	Closed 810 to 9; 44 to 2 and 5; 15 to 379. Open 810 to 2, 5, 44; 44 to 3 and 9.
Headlamp Beam Switching:
•Lever at High Beam	Closed 15 to 12. Open 15 to 13 and 196; 196 to 12.
•Lever at Low Beam	Closed 15 to 13. Open 15 to 12 and 196; 196 to 13.
•Lever at FLASH-TO-PASS	Closed 15 to 13; 196 to 12. Open 15 to 12; 196 to 13.
Wiper/Washer Switching:
•Wash OFF and Wiper OFF	Resistance 993 to 590, 103.3K ohms ± 10%. Resistance 993 to 589, 47.6K ohms ± 10%.
•Wash ON and Wiper OFF	Closed 993 to 590; Resistance 993 to 589, 47.6K ohms ± 10%.
•Wiper OFF and Wash OFF	Resistance 993 to 590, 103.3K ohms ± 10%. Resistance 993 to 589, 47.6K ohms ± 10%.
•Wiper LO or Low Speed and Wash OFF	Resistance 993 to 590, 3.3K ohms ± 10%. Resistance 993 to 589, 4.08K ohms ± 10%.
•Wiper HI or High Speed and Wash OFF	Resistance 993 to 590, 3.3K ohms ± 10%. Closed 993 to 589.
•Wiper Interval and Wash OFF	Resistance 993 to 589, 11.33K ohms ± 10%. Resistance 993 to 590. Gradually decreasing from 103.3K ohms to 3.3K ohms from Maximum Delay to Minimum Delay.