Pinpoint Test A : The 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 the PCM self-test.
- Using a diagnostic scan tool, perform the SCCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes If PCM Diagnostic Trouble Codes (DTCs) were retrieved, DIAGNOSE those Diagnostic Trouble Codes (DTCs) first. REFER to REFER to: Electronic Engine Controls . If SCCM Diagnostic Trouble Codes (DTCs) B137F:09, B137F:11 or B137F:17 were retrieved, GO to A3 For all other SCCM Diagnostic Trouble Codes (DTCs), REFER to: Steering Wheel and Column Electrical Components . No GO to A2 - A2 CHECK THE STOPLAMP SWITCH (BOO1) AND (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 On On
Do the PID values agree with the BPP?
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 (pressed/released) On/Off Cruise Off (pressed/released) On/Off Resume (pressed/released) On/Off Cancel (pressed/released) On/Off SET + (pressed/released) On/Off SET - (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 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 . No GO to A9 - A5 CHECK 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 C2366-3 C2366-4 C2366-3 C2366-5 C2366-3
Is the voltage approximately 5 volts?
Yes INSTALL a new LH steering wheel switch. REFER to: Steering Wheel Multifunction Switch . No 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 C218B-15 C2366-3 C218B-8 C2366-4 C218B-6 C2366-5 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 CLOCKSPRING FOR AN OPEN
- Disconnect Clockspring C218G .
- Measure:
Positive Lead Measurement / Action Negative Lead C218B-6 C218G-5 C218B-7 C218G-7 C218B-15 C218G-8 C218B-8 C218G-9
Are the resistances less than 3 ohms?
Yes GO to A8 No Install a new clockspring. REFER to: Clockspring . - A8 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the 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. - A9 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the 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.