Pinpoint Test A : The Cruise Control Is Inoperative

A1 CHECK THE STOPLAMP SWITCH (BOO1) AND CRUISE CONTROL DEACTIVATOR SWITCH (BOO2) PARAMETER IDENTIFICATIONS (PIDS)

Using a scan tool, view PCM Parameter Identifications (PIDs).

Using the table, monitor the Parameter Identifications (PIDs) BOO1 (stoplamp switch) and BOO2 (cruise control deactivator switch) while applying and releasing the brake pedal.

Brake Pedal Position	BOO1 PID	BOO2 PID
Released	Off	Off
Applied	On	On

Do the PID values agree with the brake pedal position?

Yes

GO to A2

No	GO to Pinpoint Test B

A2 CHECK FOR VOLTAGE TO THE CRUISE CONTROL SWITCHES

WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

Turn the ignition OFF and wait one minute.

Remove the driver airbag. REFER to: Driver Airbag .

Disconnect: LH Lower Steering Wheel Switch.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2366-2	Courtesy of FORD MOTOR COMPANY	C2366-4
C2366-3	Courtesy of FORD MOTOR COMPANY	C2366-4

Are the voltages approximately 2 volts?

Yes

GO to A3

GO to A5

A3 CHECK THE CRUISE SIGNAL 1 CIRCUIT ON THE CLOCKSPRING

Ignition OFF.

Connect: LH Lower Steering Wheel Switch C2366

Disconnect: Clockspring C218B

Ignition ON.

While pressing the cruise control switches, measure:

Positive Lead	Measurement / Action	Negative Lead
C218B-8	Courtesy of FORD MOTOR COMPANY	C218B-15

Resistance Specification

Button	Resistance Range
Switches At Rest	694 - 710 Ohms
ON/OFF Button Pressed	0 - 6 Ohms

Do all of the resistances fall within the specified ranges?

Yes

GO to A4

No	INSTALL a new LH steering wheel switch. REFER to: Steering Wheel Multifunction Switch .

A4 CHECK THE CRUISE SIGNAL 2 CIRCUIT ON THE CLOCKSPRING

While pressing the cruise control switches, measure:

Positive Lead	Measurement / Action	Negative Lead
C218B-16	Courtesy of FORD MOTOR COMPANY	C218B-15

Resistance Specification

Button	Resistance Range
Switches At Rest	694 - 710 Ohms
RES/CAN Button Pressed	0 - 6 Ohms
SET (-) Button Pressed	145 - 154 Ohms
SET (+) Button Pressed	358 - 371 Ohms

Do all the resistances fall within the specified range?

Yes

GO to A5

GO to A7

A5 CHECK THE STEERING WHEEL SWITCH HARNESS FOR AN OPEN

NOTE: The steering wheel harness is serviced separately.

Ignition OFF.

Disconnect:

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2366-2	Courtesy of FORD MOTOR COMPANY	C218B-8
C2366-3	Courtesy of FORD MOTOR COMPANY	C218B-16
C2366-4	Courtesy of FORD MOTOR COMPANY	C218B-15

Are the resistances less than 3 ohms?

Yes

GO to A6

No	INSTALL a new steering wheel harness.

A6 CHECK FOR CORRECT CRUISE CONTROL OPERATION

NOTE: The steering wheel harness is serviced separately.
- Reconnect all connectors and install removed components.
- Perform a road test.
Is the concern still present?

Yes INSTALL a new steering wheel harness. TEST the system for normal operation. If the concern is still present, GO to A7

No The system is operating correctly at this time. The concern may have been caused by an intermittent condition.

A7 CHECK FOR CORRECT SASM (STEERING ANGLE SENSOR MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the SASM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SASM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SASM. REFER to: Clockspring . TEST the system for normal operation. If the concern is still present, GO to A8

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

A8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all PCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Replace the component that was faulted. REFER to: Powertrain Control Module (PCM) .

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.