Page 1 of 18 On Board Diagnostics PCED 7/25/2009 http://www ...

On Board Diagnostics PCED
http://www.fordtechservice.dealerconnection.com/pubs/content/~WV52/~MUS~LEN/14/...
Page 3 of 18
7/25/2009
KB10 CHECK THE FUEL PUMP FUSE
Note: These steps are for applications with FPDM PWR relay integral to the PDJB.
Check the FPDM power supply relay fuse. (located on the PDJB).
Is the fuse OK?
GO to KB11 .
Yes
INSTALL a new fuse.
CHECK the associated circuits for a short to ground before installing the fuse.
No
KB11 CHECK VOLTAGE TO IFS
IFS Switch connector disconnected.
Key ON, engine OFF.
Measure the voltage between:
( + ) IFS Switch Connector, Harness Side ( - )
FPDMPWR-A
Ground
Is the voltage greater than 10.5 V?
Key in OFF position.
GO to KB13 .
Yes
Key in OFF position.
GO to KB12 .
No
KB12 CHECK THE FPDM PWR CIRCUIT FOR AN OPEN BETWEEN THE IFS AND PDJB
PDJB connector disconnected. (connector with FPDM PWR circuit)
Measure the resistance between:
( + ) IFS Switch Connector, Harness Side ( - ) PDJB Connector, Harness Side
FPDMPWR-A
FPDM PWR
Is the resistance less than 5 ohms?
CHECK the fuel pump fuse.
If OK, INSTALL a new FP RLY/PDJB.
Yes
REPAIR the open circuit.
No
KB13 CHECK THE IFS FOR AN OPEN
Measure the resistance between:
( + ) IFS Switch Connector, Component Side ( - ) IFS Switch Connector, Component Side
FPDMPWR-A
FPDMPWR-B
Is the resistance less than 5 ohms?
REPAIR the open circuit.
(Open FPDM PWR circuit).
Yes
INSTALL a new IFS switch.
No
KB14 CHECK THE FPM CIRCUIT FOR AN OPEN IN THE HARNESS
FPDM connector disconnected.
PCM connector disconnected.
Measure the resistance between:
( + ) FPDM Connector, Harness Side ( - ) PCM Connector, Harness Side
FPM
FPM
Is the resistance less than 5 ohms?
GO to KB15 .
Yes
REPAIR the open circuit.
No
KB15 CHECK THE FPM CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS