DR-8D Check 5 Volt Supply to Throttle Position Sensor

1. With ignition switch in Run position and throttle body connector disconnected, connect a voltmeter to orange/white wire of throttle body connector and ground.
2. If voltmeter reads at least 4 volts, replace throttle position sensor.
3. If voltmeter reads zero volts, locate and repair open circuit in orange/white wire to logic module.