Ford F150 Pickup. Manual — part 1253

breakout box. If breakout box is not available, take desired measurements between ground pin and specified pin
at PCM connector (backprobe PCM connector). See appropriate illustration in PIN VOLTAGE/PID VALUE
CHARTS under PID DEFINITIONS & PIN VOLTAGE/PID VALUES.

SYMPTOM TESTING

Using REFERENCE VALUE SYMPTOM CHART can help in selecting PIDs that are related to a specific fault
area. See Fig. 1 . Select a symptom from the chart, note category number and proceed to Fig. 2 . For multiple
symptoms, select most evident symptom. Match category number with related PIDs/measured signals
(component and signal) and perform PID TESTING .

Fig. 1: Reference Value Symptom Chart

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Pin Voltage/PID Value Charts - F150 Pickup - Bi-Fuel - Gasoline/CNG

Courtesy of FORD MOTOR CO.

Fig. 2: Reference Value PID/Measured Signal Chart
Courtesy of FORD MOTOR CO.

PID TESTING

Some vehicles may not display all input and output PID signals. Reference values may vary plus or minus 20
percent depending on operating conditions and other factors. RPM values are axle ratio and tire size dependent.

Accessing Generic OBD-II PIDs

Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program scan tool using the
following steps:

z

Select VEHICLE & ENGINE SELECTION menu.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Pin Voltage/PID Value Charts - F150 Pickup - Bi-Fuel - Gasoline/CNG

z

Select NEW VEHICLE, YEAR & MODEL.

z

Select GENERIC OBD-II OPTIONS. Press CONT button if monitors are not complete.

z

Select PID/DATA MONITOR & RECORD.

z

Turn ignition switch to ON position or start engine and allow to idle.

z

Follow operating manuals from scan tool menu.

z

Select PIDs and press START to begin monitoring.

Compare actual PID values on scan tool to PID values in appropriate chart under PIN VOLTAGE/PID
VALUE CHARTS under PID DEFINITIONS & PIN VOLTAGE/PID VALUES. If PID value is not as
specified, perform appropriate SYSTEM TEST in SELF-DIAGNOSTICS - BI-FUEL - GASOLINE/CNG
article.

Accessing Ford Specific PIDs

Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program scan tool using the
following steps:

z

Select VEHICLE & ENGINE SELECTION menu.

z

Select NEW VEHICLE, YEAR & MODEL.

z

Select DIAGNOSTIC DATA LINK.

z

Select POWERTRAIN CONTROL MODULE.

z

Select PID/DATA MONITOR & RECORD.

z

Turn ignition switch to ON position or start engine and allow to idle.

z

Follow operating manuals from scan tool menu.

z

Select PIDs and press START to begin monitoring.

Compare actual PID values on scan tool to PID values in appropriate chart under PIN VOLTAGE/PID
VALUE CHARTS under PID DEFINITIONS & PIN VOLTAGE/PID VALUES. If PID value is not as
specified, perform appropriate SYSTEM TEST in SELF-DIAGNOSTICS - BI-FUEL - GASOLINE/CNG
article.

PCM CONNECTORS

NOTE:

To identify PCM connector, refer to illustration. See Fig. 3 .

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Pin Voltage/PID Value Charts - F150 Pickup - Bi-Fuel - Gasoline/CNG

Fig. 3: Identifying PCM Connector Terminals (F150)
Courtesy of FORD MOTOR CO.

POWERTRAIN CONTROL MODULE LOCATIONS

The powertrain control module is located behind right kick panel.

PID DEFINITIONS & PIN VOLTAGE/PID VALUES

PID DEFINITIONS (GASOLINE/CNG)

Fig. 4: PID Definitions (Gasoline/CNG)
Courtesy of FORD MOTOR CO.

PIN VOLTAGE/PID VALUE CHARTS

NOTE:

All references to 2V or 4V following an engine size or model is 2 or 4 valves per
cylinder.

NOTE:

For gasoline definitions, see PIN VOLTAGE CHARTS - CUTAWAY, ECONOLINE,
F450 SUPER DUTY, F550 SUPER DUTY, PICKUP & RV CUTAWAY - GASOLINE &
CNG .

NOTE:

For information pertaining to the gasoline portion, see PIN VOLTAGE CHARTS -
CUTAWAY, ECONOLINE, F450 SUPER DUTY, F550 SUPER DUTY, PICKUP & RV

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Pin Voltage/PID Value Charts - F150 Pickup - Bi-Fuel - Gasoline/CNG