Operation CHARM: Car repair manuals for everyone.

Spark Control Timer


Timer Test, 2.3L Calif.

Fig. 43 - Timer Test:






1. Remove timer.

2. Connect suitable test wires to timer terminals A, B and C respectively.

3. Connect a suitable test wire with a 30K ohm resistor to terminal D.

4. Connect a suitable test wire with a 3.4 watt lamp to terminal E.

5. Connect positive leads of a voltmeter to terminal D and negative test lead to battery negative terminal.

6. Connect test wires from timer terminals A, D and E to battery positive terminal. Do not connect test wire from terminal B at this time.

7. Connect wire from terminal C to battery negative terminal.

8. Voltmeter should not read 6 volts.

9. Connect test wire from timer terminal B with battery positive terminal. At the instant the connection is made, the volt. meter should read less than 1 volt and lamp should illuminate. Maintain this connection for 125 ± 15 seconds. Voltmeter should read 8 volts.