DR-12B Check EGR Solenoid Control Wire For Open

1. Turn ignition switch Off, then connect a voltmeter to cavity 6 of logic module blue connector and to ground.
2. Turn ignition switch to Run position.
3. If voltmeter indicates voltage is within one volt of battery voltage, replace logic module.
CAUTION: Before replacing the logic module check the terminal in cavity No. 6 of the blue connector to make sure it is not crushed causing a poor connection.
4. If voltmeter indicates no voltage, repair open circuit in wire to solenoid assembly in cavity 6.