DR-7D Check 5 Volt Supply to Throttle Position Sensor

1. With ignition switch in Run position and throttle position sensor connector disconnected, connect a voltmeter to orange/white wire of throttle position sensor 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, also check terminal in cavity 1 of blue connector to ensure it is making a good connection.