DR-1F A/C Push Button Switch Input to Logic Module

***UPDATED BY TSB #18-62-86

1. Turn ignition switch Off.
2. Connect a voltmeter to cavity No. 11 of the logic module blue connector and ground and start the engine.
3. Move blower switch to an on position and then press the A/C button, wait for the A/C clutch to engage.
4. If voltmeter reading is between 7 and 9 volts, repair wire of cavity No. 11 for open circuit to A/C switch circuit.
5. If voltmeter reading is not between 7 and 9 volts, replace logic module.
CAUTION: Before replacing the logic module check the terminal in cavity No. 11 of the blue connector to make sure it is not crushed causing a poor connection.