Ford 2003 Mustang Workshop Manual page 3022

Is the resistance between 612 and 748 ohms?
PINPOINT TEST G: THE SPEED CONTROL SWITCH IS
INOPERATIVE — RESUME
G1 CHECK THE SPEED CONTROL ACTUATOR SWITCH
Key in OFF position.
Disconnect: Speed Control Servo C122.
Measure the resistance between speed control servo C122 Pin
5, Circuit 151 (LB/BK), harness side and speed control servo
C122 Pin 6, Circuit 848 (DG/OG), harness side while pressing
the speed control actuator switch RESUME.
Is the resistance between 1,980 and 2,420 ohms?
PINPOINT TEST H: THE SPEED CONTROL SWITCH IS
INOPERATIVE—OFF
H1 CHECK THE SPEED CONTROL ACTUATOR SWITCH
Key in OFF position.
Disconnect: Speed Control Servo C122.
Measure the resistance between speed control servo C122 Pin
5, Circuit 151 (LB/BK), harness side and speed control servo
C122 Pin 6, Circuit 848 (DG/OG), harness side while pressing
the speed control actuator switch OFF.
Test Step
Test Step
No
INSTALL a new speed
control actuator switch;
REFER to Switch—
Speed Control
Actuator . TEST the
system for normal
operation.
Result / Action to
Take
Yes
INSTALL a new speed
control servo; REFER
to Actuator—Speed
Control Servo . TEST
the system for normal
operation.
No
INSTALL a new speed
control actuator switch;
REFER to Switch—
Speed Control
Actuator . TEST the
system for normal
operation.
Result / Action to
Take
Yes
INSTALL a new speed
control servo; REFER
to Actuator—Speed
Control Servo . TEST
the system for normal
operation.
No