DR-18C Throttle Position Sensor

This test must be performed with engine warm.

1. With diagnostic read-out tool connected to engine harness connector, start engine.
2. Place system into Engine Running Test Mode 65. Divide reading on display by ten for actual voltage.
3. Slowly increase engine speed to 2000 RPM.
4. If display voltage increases as engine speed increases, proceed to Test 18 step D. DR-18D Throttle Position Sensor
5. If display voltage does not increase as engine speed increases, replace throttle position sensor.