Pinpoint Test I: The Speed Control Indicator Lamp Is Always On

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

I1 CHECK SPEED CONTROL ACTUATOR
- Key in OFF position.
- Disconnect: Speed Control Actuator C122.
- Key in ON position.
- Check the speed control indicator lamp.
- Does the speed control indicator lamp remain on?
1. Yes : GO to I2.
2. No : INSTALL a new speed control actuator. REFER to SPEED CONTROL ACTUATOR . TEST the system for normal operation.
I2 CHECK CIRCUIT 203 (OG/LB) FOR SHORT TO GROUND
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between the speed control actuator C122 pin 1, circuit 203 (OG/LB), harness side and ground.
  
  Fig 1: Checking Circuit 203 (OG/LB) For Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
1. Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . CARRY OUT the self-test diagnostics.
2. No : REPAIR the circuit. TEST the system for normal operation.