Pinpoint Test A : The Adaptive Cruise Control Is Inoperative

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

A1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, perform IPMA self-test.

Using a diagnostic scan tool, perform PCM self-test.

Using a diagnostic scan tool, perform SCCM self-test.

Using a diagnostic scan tool, perform CCM self-test.

Using a diagnostic scan tool, perform ABS module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

If IPMA Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to: Lane Keeping System . If PCM Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to: Electronic Engine Controls . If SCCM DTC B137F:09, B137F:11 or B137F:17 is set, GO to A3 For all other SCCM Diagnostic Trouble Codes (DTCs), REFER to: Steering Wheel and Column Electrical Components . If CCM Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. See DTC Chart: Steering Column Control Module (SCCM) .If ABS Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to: Anti-Lock Brake System (ABS) and Stability Control .

GO to A2

A2 CHECK THE STOPLAMP SWITCH (BOO1) AND CRUISE CONTROL DEACTIVATOR SWITCH (BOO2) PARAMETER IDENTIFICATIONS (PIDS)

Using a diagnostic 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 lightly	On	Off
Applied firmly	On	On

Do the PID values agree with the brake pedal position?

Yes

GO to A3

No	GO to Pinpoint Test B

A3 CHECK THE CRUISE CONTROL SWITCH PID (PARAMETER IDENTIFICATION)

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

Using the table, press each cruise control switch while monitoring the cruise control switch PID.

Cruise Control Switch	PID Value
Cruise On/Off (pressed/released)	On/Off
Cruise Cancel/Resume (pressed/released)	On/Off
SET + (pressed/released)	On/Off
SET - (pressed/released)	On/Off
GAP + (pressed/released)	On/Off
GAP - (pressed/released)	On/Off

Does the PID value agree with the switch position?

Yes

GO to A4

No	If only one switch does not display the correct PID value, INSTALL a new LH steering wheel switch. REFER to: Steering Wheel Multifunction Switch . If multiple switches do not display the correct PID value, GO to A5

A4 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: If a GSM self-test is performed, make sure the drivers door is closed and locked.

Using a diagnostic scan tool, perform the GSM self-test.

Using a diagnostic scan tool, perform the TCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

If TCM Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to: Diagnostic Trouble Code (DTC) Charts and Pinpoint Tests - 3.5L EcoBoost (272kW/370PS) . If GSM Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to: External Controls .

GO to A10

A5 CHECK FOR VOLTAGE TO THE CRUISE CONTROL SWITCHES

Ignition OFF.

Remove the driver airbag. REFER to: Driver Airbag .

Disconnect LH Steering Wheel Switch C2366 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2366-2	Courtesy of FORD MOTOR COMPANY	C2366-3
C2366-4	Courtesy of FORD MOTOR COMPANY	C2366-3
C2366-5	Courtesy of FORD MOTOR COMPANY	C2366-3

Is the voltage approximately 5 volts?

Yes	TURN the ignition off and WAIT one minute. INSTALL a new LH steering wheel switch. REFER to: Steering Wheel Multifunction Switch . INSTALL the driver airbag. REFER to: Driver Airbag .

GO to A6

A6 CHECK THE STEERING WHEEL SWITCH HARNESS FOR AN OPEN

Ignition OFF.

Disconnect Clockspring C218B .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2366-2	Courtesy of FORD MOTOR COMPANY	C218B-15
C2366-3	Courtesy of FORD MOTOR COMPANY	C218B-8
C2366-4	Courtesy of FORD MOTOR COMPANY	C218B-6
C2366-5	Courtesy of FORD MOTOR COMPANY	C218B-7

Are the resistances less than 3 ohms?

Yes

GO to A7

No	Install a new steering wheel. REFER to: Steering Wheel .

A7 CHECK THE STEERING WHEEL SWITCH HARNESS FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2366-2	Courtesy of FORD MOTOR COMPANY	Ground
C2366-3	Courtesy of FORD MOTOR COMPANY	Ground
C2366-4	Courtesy of FORD MOTOR COMPANY	Ground
C2366-5	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes

GO to A8

No	Install a new steering wheel. REFER to: Steering Wheel .

A8 CHECK THE STEERING WHEEL SWITCH CIRCUITS THROUGH THE CLOCKSPRING FOR AN OPEN

Disconnect Clockspring C218G .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C218B-6 (component side)	Courtesy of FORD MOTOR COMPANY	C218G-5 (component side)
C218B-7 (component side)	Courtesy of FORD MOTOR COMPANY	C218G-7 (component side)
C218B-15 (component side)	Courtesy of FORD MOTOR COMPANY	C218G-8 (component side)
C218B-8 (component side)	Courtesy of FORD MOTOR COMPANY	C218G-9 (component side)

Are the resistances less than 3 ohms?

Yes

GO to A9

No	Install a new clockspring. REFER to: Clockspring .

A9 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all SCCM 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 SCCM 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM. REFER to: Steering Column Control Module (SCCM) .

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.

A10 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to PCM GUIDED ROUTINE TESTING -- NAVIGATOR .

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.