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Home >> Chevrolet >> 1988 >> Spectrum Express >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Servo Test >> Motor & Gear Drive Test

Motor & Gear Drive Test

Disconnect servo harness connector in engine compartment. Connect a jumper wire between Orange and Green wires and ground. Apply 12 volts (for less than 3 seconds) to Blue and Yellow wires. Servo should pull throttle cable in. If servo does not respond correctly, replace servo.