PINPOINT TEST A : No Power at the AC Power Point Or the AC Power Point LED Indicator Flashes With Ignition On

A1 CHECK THE POWER OUTLET LED STATUS

Ignition OFF.

Start the engine.

Check the green LED on the AC outlet.

Is the green LED flashing?

Yes

GO to A2.

CHECK BJB fuse 17 (40A) and BCM-B fuse 32 (15A). If OK, and power is present at the AC outlet, GO to Pinpoint Test B . If the fuses are OK and there is no power present at the AC outlet, GO to A2. If the fuses are not OK, identify the possible cause of the circuit short. Refer to HORN/CIGAR LIGHTER for schematic and connector information. If the green LED is illuminated continuously, the DC /AC inverter may have timed-out after 13 minutes of operation without the engine running. VERIFY correct system operation with a device rated at less than 150 watts. If there is still no power at the AC outlet, GO to A2.

A2 CHECK THE POWER SUPPLY CIRCUITS FOR VOLTAGE

Ignition OFF.

Disconnect DC /AC Inverter C3501A.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3501A-2	Courtesy of FORD MOTOR COMPANY	Ground
C3501A-4	Courtesy of FORD MOTOR COMPANY	Ground

Are the voltages greater than 10 volts?

Yes	GO to A3.
No	CHECK BJB fuse 17 (40A) and BCM-B fuse 32 (15A). If OK, REPAIR the open circuit on the affected circuit(s). If not OK, identify the possible cause of the circuit short. Refer to HORN/CIGAR LIGHTER for schematic and connector information.

A3 CHECK THE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3501A-6	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 5 ohms?

Yes	GO to A4.
No	REPAIR the circuit.

A4 CHECK THE AC OUTLET CIRCUITS FOR AN OPEN

Disconnect AC Outlet C301.

Disconnect DC /AC Inverter C3501B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3501B-6	Courtesy of FORD MOTOR COMPANY	C301-3
C3501B-3	Courtesy of FORD MOTOR COMPANY	C301-1

Are the resistances less than 5 ohms?

Yes	GO to A5.
No	REPAIR the circuit(s).

A5 CHECK THE AC OUTLET CIRCUITS FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3501B-6	Courtesy of FORD MOTOR COMPANY	C3501B-3

Is the resistance greater than 10, 000 ohms?

Yes	GO to A6.
No	REPAIR the circuits.

A6 CHECK THE AC OUTLET CIRCUITS FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3501B-3	Courtesy of FORD MOTOR COMPANY	Ground
C3501B-6	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes	GO to A7.
No	REPAIR the affected circuit(s).

A7 CHECK THE AC OUTLET FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C301-1	Courtesy of FORD MOTOR COMPANY	Outlet Face Pin 1 Courtesy of FORD MOTOR COMPANY
C301-3	Courtesy of FORD MOTOR COMPANY	Outlet Face Pin 2 Courtesy of FORD MOTOR COMPANY

Are the resistances less than 5 ohms?

Yes	INSTALL a new DC /AC inverter. Refer to Direct Current/Alternating Current (DC/AC) Inverter .
No	INSTALL a new AC outlet. Refer to Alternating Current (AC) Power Point .