DR-1E Brake Switch to Logic Module (W/Speed Control)

1. Turn ignition switch Off, then disconnect blue connector from logic module.
2. Connect a voltmeter to cavity 13 and ground.
3. Turn ignition switch to Run position.
4. If voltmeter reading is greater than five volts, check for open circuit in wire of cavity 13 to brake switch, defective brake switch or open circuit to tail lamps.
5. If voltmeter reads 0 volts, replace logic module.
CAUTION: Before replacing the logic module check terminal in cavity No. 13 of the blue connector to make sure it is not crushed causing a poor connection.