Ford F150 Pickup. Manual — part 1591

CAMERRR

CAMERRR

Input

CAS GND

CASE GND

Input

CCS

CCS

Output

CD-A (Primary)

Output

CD-B (Primary)

Output

CD-C (Primary)

Output

CD-D (Primary)

Output

CD-E (Primary)

Output

CD-F (Primary)

Output

CD-G (Primary)

Output

CD-H (Primary)

Output

CD-I (Primary)

Output

CD-J (Primary)

Output

CFCIL

CFCIL

Output

CHT & CHT V

CHT

Input

CHTIL

CHTIL

Output

CKP(+)

Input

CMP

Input

CPP/PNP

CPP

Input

CTO

Output

DOL

Output

DPFEGR

DPFEGR

Input

ECT & ECT V

ECT

Input

EFTA & EFTA V

EFT-A

Input

EFTB & EFTB V

EFT-B

Input

EGRMC 1

Output

EGRMC 2

Output

EGRMC 3

Output

EGRMC 4

Output

EGRMDSD

EGRMDSD

Output

EGRVR

EGRVR

Output

EOT & EOT V

EOT

Input

EPC & EPC V

EPC

Output

EPC 2

Output

EPC 3

Output

EVAPCP & EVAPDC

EVAPCP

Output

EVAPCV

EVAPCV

Output

EVAPPF

EVAPPF

Input

LFC

FC

Output

FF

FF

Input

FLI & FLI V

FLI

Input

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline

FP

FP

Output

FPM & FP M

FPM

Input

FRP & FRP V

FRP

Input

FSV

FSV

Output

FSVM

FSVM

Input

FTP & FTP V

FTP

Input

GEAR

GEAR

Input

GENFDC

GENFDC

Output

GFS

GFS

Input

HCDS

Input

HFC

HFC

Output

O2S11

HO2S-11

Input

O2S12

HO2S-12

Input

O2S21

HO2S-21

Input

O2S22

HO2S-22

Input

HTR11

HTR-11

Output

HTR12

HTR-12

Output

HTR21

HTR-21

Output

HTR22

HTR-22

Output

IAC

IAC

Output

IAT & IAT V

IAT

Input

IAT2

IAT2

Input

IAT2 V

IAT2 V

Ouput

ILC

Input

IMRC

IMRC

Output

IMRCM

IMRCM

Input

IMRCM2

IMRCM2

Input

IMSC

Output

IMTV

IMT Valve

Output

FUELPW1

INJ-1

Output

FUELPW1

INJ-2

Output

FUELPW1

INJ-3

Output

FUELPW1 Or FUELPW2

INJ-4

Output

FUELPW1 Or FUELPW2

INJ-5

Output

FUELPW2

INJ-6

Output

FUELPW2

INJ-7

Output

FUELPW2

INJ-8

Output

FUELPW2

INJ-9

Output

FUELPW2

INJ-10

Output

KAPWR

Volts

KS1 & KS2

KS

Input

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline

LFC

LFC

Output

LFP

Output

MAF & MAF V

MAF

Input

MAP & MAP V

MAP

Input

MFC

MFC

Output

MIL

MIL

Output

OCTADJ

OCT ADJ

Input

OSS

OSS

Input

PATSIL

Output

PATSIN

Input

PATSOUT

Output

PATSTRT

Output

CPP/PNP

PNP

Input

PSP & PSP V

PSP

Input

PTO

PTO

Input

SCB

SCB

Output

SCC

Output

SCCS

Input

SCMA

Output

SCMB

Output

SCMC

Output

SCVM

Input

SIL

Output

SCICP

SCICP

Output

SPARKADV

SPARKADV

Output

SS1

SS1

Output

SS2

SS2

Output

SS3

SS3

Output

TCC

TCC

Output

TCIL

TCIL

Output

TCS

TCS

Input

TFT & TFT V

TFT

Input

THTRC

Output

TMAP

TMAP

Input

TP & TP V

TP

Input

TPB & TPB V

TPB

Input

TPO

Output

TR & TR V

TR

Input

TSS/ISS

TSS

Input

CAMDCR & RCAM

VCT

Output

VFCDC

VFCDC

Output

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline

Testing

1) For Continuous Memory Only DTCs P0451 & P0461: Direction For Intermittent Diagnostic
Path
There are 2 main procedures used in this system test to isolate and repair an intermittent concern. One
procedure uses the Rotunda Distributorless Ignition System Tester (DIST) (007-00075) and the other uses
a scan tool and a Digital Volt-Ohmmeter (DVOM). The DIST is used on vehicles with coil pack ignition
systems. If vehicle has an ignition concern and is equipped with coil pack ignition, go to next step (Focus
2.0L), or step 50) (all others). If vehicle does not have an ignition concern, has coil on plug, or DIST is
not available, go to next step.

2) Perform PCM Reset To Clear FMEM

If a PCM reset procedure has already been performed, go directly to next step. Eliminating FMEM will
ensure reproduction of any PCM related symptom. Ensure freeze frame data has been recorded before
resetting PCM. If PCM reset procedure has not been done previously, perform PCM RESET
PROCEDURE under CLEARING CODES under SELF-DIAGNOSTIC SYSTEM. After performing
PCM reset procedure, go to next step.

3) Select PIDs Related To Symptom

Scan tool and a list of PIDs must be used to indicate area of fault. Obtain symptom from customer
description. Use REFERENCE VALUE SYMPTOM table and REFERENCE VALUE/PID
MEASUREMENT SIGNAL table in appropriate PIN VOLTAGE/PID VALUE CHARTS article to
identity PIDs that relate to symptom. Note and make a list of symptom related PIDs and go to next step.

4) Symptom Verification

Path to symptom verification is optional, but is recommended for the following reasons:

z

If Vehicle Is In For A Repeat Repair

z

No DTCs Present

z

Customer Has Difficulty Describing Symptom

If symptom needs to be verified, go to next step. If symptom is known and does not need to be verified,
go to step 11).

VPWR

VPWR

Input

VREF

Output

VSO

Output

VSS

VSS+

Input

WAC

WAC

Output

(1)

PID is not available for this circuit. Use DVOM.

NOTE:

For additional testing information, see DIAGNOSTIC AIDS.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline