Pinpoint Test H: Flash With Last Switch Pressed. Dynamic Pull Occurs At Throttle And Speed Control Inoperative
- H1 CHECK THE SPEEDOMETER OPERATION
- Check the speedometer for correct operation by driving the vehicle.
- Does the speedometer operate correctly?
- H2 CHECK CIRCUIT 679 (GY/BK) FOR AN OPEN
- Key in OFF position.
- Disconnect: Speed Control Servo C122.
- Disconnect: Anti-lock Brake Control Module C135.
- Measure the resistance between the speed control servo C122 pin 3, circuit 679 (GY/BK), harness side and the anti-lock brake control module C135 pin 11, circuit 679 (GY/BK), harness side.
Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes
: INSTALL a new speed control servo. REFER to SPEED CONTROL SERVO in this article. REPEAT the self-test.
- No
: REPAIR the circuit. REPEAT the self-test.