Pinpoint Test C : No Power In On - Conventional Ignition Switch

C1 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: It may be necessary to use a tear tag or PCM part number to start a vehicle session on the diagnostic scan tool.

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

Are any BCM Diagnostic Trouble Codes (DTCs) present?

Yes	For DTC B1310:14, GO to C2For DTC B1142:29, GO to C5 For all other BCM Diagnostic Trouble Codes (DTCs), REFER to the BCM DTC Chart .

GO to C5

C2 CHECK THE BJB (BATTERY JUNCTION BOX) RUN/START RELAY
- Ignition OFF.
- Remove the BJB run/start relay.
- Carry out the appropriate relay component test. Refer to Component Testing for schematic and connector information.
Is the relay OK?

Yes GO to C3

No INSTALL a new BJB run/start relay.

C3 CHECK THE RUN/START RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND

Disconnect BCM C2280C .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280C-25	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes	REPAIR the circuit.

GO to C4

C4 CHECK THE RUN/START RELAY CONTROL CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280C-25	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY BJB run/start relay, cavity 2

Is the resistance less than 3 ohms?

Yes

GO to C16

No	REPAIR the circuit.

C5 CHECK FOR IGNITION ON MODE

NOTE: The airbag warning indicator in the IPC only illuminates and proves out when the vehicle successfully enters ON mode.
- Monitor the airbag warning indicator while attempting to enter ON mode.
Did the airbag warning indicator illuminate?

Yes GO to C9

No GO to C6

C6 CARRY OUT A NETWORK TEST
- Using a diagnostic scan tool, perform the network test.
Did the BCM pass the network test?

Yes GO to C7

No REFER to: Communications Network .

C7 CHECK THE BCM (BODY CONTROL MODULE) IGNITION RUN/ACCESSORY OUTPUT CONTROL (IGN_ACC/RUN) PID (PARAMETER IDENTIFICATION)
- Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
- Using a diagnostic scan tool, monitor the BCM PID IGN_ACC/RUN.
Does the PID read On when the ignition is in the ON position?

Yes DIAGNOSE the SRS concern. Refer to: Airbag Supplemental Restraint System (SRS) .

No GO to C8

C8 CHECK THE BCM (BODY CONTROL MODULE) IGNITION RUN/ACCESSORY INPUT CONTROL (IGN_R/A_INPT) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, monitor the BCM PID IGN_R/A_INPT.

Does the PID read On when the ignition is in the ON position?

Yes

GO to C16

No	CARRY OUT the ignition switch component test. Refer to Component Testing for schematic and connector information. If the ignition switch tests OK, GO to C11 If not OK, INSTALL a new ignition switch. Refer to: Ignition Switch .

C9 CHECK THE BCM (BODY CONTROL MODULE) IGNITION RUN/START OUTPUT CONTROL (IGN_RUN/STRT) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, monitor the BCM PID IGN_RUN/STRT.

Does the PID read On when the ignition is in the ON position?

Yes	CARRY OUT the BJB run/start relay component test. Refer to Component Testing for schematic and connector information. If the run/start tests OK, GO to C13 If not OK, INSTALL a new run/start relay.

GO to C10

C10 CHECK THE BCM (BODY CONTROL MODULE) IGNITION RUN/START INPUT CONTROL (IGN_R/S_INPT) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, monitor the BCM PID IGN_R/S_INPT.

Does the PID read On when the ignition is in the ON position?

Yes

GO to C16

No	CARRY OUT the ignition switch component test. Refer to Component Testing for schematic and connector information. If the ignition switch tests OK, GO to C14 If not OK, INSTALL a new ignition switch. Refer to: Ignition Switch .

C11 CHECK THE BCM (BODY CONTROL MODULE) ACC/RUN INPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280G .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280G-50	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to C12

No	REPAIR the circuit.

C12 CHECK THE BCM (BODY CONTROL MODULE) ACC/RUN INPUT CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280G-50	Courtesy of FORD MOTOR COMPANY	C250-6

Is the resistance less than 3 ohms?

Yes

GO to C16

No	REPAIR the circuit.

C13 CHECK THE RUN/START CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect BJB C1035A .

Disconnect BCM C2280C .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280C-25	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to C16

C14 CHECK THE BCM (BODY CONTROL MODULE) RUN/START INPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280G .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280G-37	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to C15

No	REPAIR the circuit.

C15 CHECK THE BCM (BODY CONTROL MODULE) RUN/START INPUT CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280G-37	Courtesy of FORD MOTOR COMPANY	C250-1

Is the resistance less than 3 ohms?

Yes

GO to C16

No	REPAIR the circuit.

C16 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all 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 and all other previously disconnected 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, Refer to BCM Hardware Testing (Except Hybrid/Energi) .

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.