Pinpoint Test E: The Speed Control Switch Is Inoperative

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.

E1 CHECK THE SPEED CONTROL SWITCH

Key in OFF position.
Disconnect: Speed Control Actuator C122.

Measure the resistance between the speed control actuator C122 pin 5, circuit 151 (LB/BK), harness side and the speed control actuator C122 pin 6, circuit 848 (DG/OG), harness side while pressing the speed control switch as follows:

Speed Control	Switch Resistance Value
COAST	Between 114 and 126 ohms
SET/ACCEL	Between 612 and 748 ohms
RESUME	Between 2,090 and 2,310 ohms
OFF	Less than 5 ohms

Fig 1: Checking Speed Control Switch

Courtesy of FORD MOTOR CO.

Are the speed control switch resistance values OK?

Yes : INSTALL a new speed control actuator. REFER to SPEED CONTROL ACTUATOR . TEST the system for normal operation.
No : INSTALL a new speed control switch. REFER to SPEED CONTROL SWITCH . TEST the system for normal operation.