Pinpoint Test BQ: The Key-In-Ignition Warning Chime Is Inoperative

Refer to STARTING SYSTEM Wiring Diagrams for schematic and connector information.

Normal Operation and Fault Conditions

See Key-In-Ignition Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM B10F1:14	Key In Switch: Circuit Short To Ground Or Open	A continuous and on-demand DTC that sets in the BCM if an open is detected on the key-in-ignition switch input with the ignition ON.

Possible Sources

Wiring, terminals or connectors
Interior lighting concern
Key-in-ignition switch (part of the ignition switch)
BCM
GWM
IPC

BQ1 CHECK THE SEATBELT WARNING CHIME OPERATION
- Ignition OFF.
- Ignition ON.
- Monitor the seatbelt warning chime when the ignition switch is transitioned from OFF to RUN for 6 seconds.
Does the seatbelt warning chime operate for approximately 6 seconds?

Yes GO to BQ2

No GO to Pinpoint Test A

BQ2 CHECK THE INTERIOR LAMPS OPERATION
- Open and close the driver door.
- Observe the interior lamps.
Do the interior lamps operate correctly from the driver door?

Yes GO to BQ3

No REFER to: Interior Lighting .

BQ3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to: Controller Area Network (CAN) Module Communications Network .

No GO to BQ4

BQ4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the BCM self-test.
Is DTC B10F1:14 present?

Yes GO to BQ5

No GO to BQ8

BQ5 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR VOLTAGE

Ignition OFF.

Insert the key into the ignition cylinder.

Disconnect BCM C2280B .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280B-38	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to BQ8

GO to BQ6

BQ6 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR SHORT TO GROUND

Remove the key from the ignition cylinder.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280B-38	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to BQ7

No	REPAIR the circuit.

BQ7 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR OPEN

Disconnect Ignition Switch C250 .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280B-38	Courtesy of FORD MOTOR COMPANY	C250-3

Is the resistance less than 3 ohms?

Yes	REPAIR the circuit.

No	DIAGNOSE the ignition switch. REFER to: Steering Wheel and Column Electrical Components .

BQ8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM 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 BCM connectors. Make sure they seat and latch correctly.

Operate the system and verify the concern is still present

Is the concern still present?

Yes

CHECK On-Line Automotive Service Information System (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 BCM. REFER to: Body Control Module (BCM) .

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.