Ford 60 Service Manual

AP (Accelerator Pedal
Position)
ELECTRICAL COMPONENTS
104
 • The AP (Accelerator Pedal) is a
three track pedal. The AP
incorporates three potentiometers.
Through out the movement of the
AP the resistance values of the
three potentiometers must agree.
During the movement of the AP if
one of the three potentiometer
readings do not agree, the check
engine light will illuminate and the
vehicle will continue to perform as
normal. If two signals from the AP
are lost the PCM will allow the
engine to idle only...

Baro (Barometric Pressure)
ELECTRICAL COMPONENTS
105
51
 • The BP sensor is a three (3) wire
variable capacitance sensor.
 • The PCM supplies a 5 volt 
reference signal which the BP
sensor uses to produce a linear
analog voltage signal that indicates
pressure.
 • The primary function of the BP
sensor is to provide altitude 
information so that the PCM can
adjust timing, fuel quantity, glow
plug on time, and VGT control. 

CKP (Crankshaft Position)
ELECTRICAL COMPONENTS
 • The crankshaft position signal
source is a magnetic pickup sensor
mounted in the right front side of
the engine block.
 • The sensor reacts to a target wheel
positioned on the crankshaft. The
target wheel is a 60 minus 2 tooth
steel disk with 58 evenly spaced
teeth and a slot that’s width is
equivalent to removing 2 teeth
(minus 2 slot) that is the SYNC
gap.
 • The sensor will produce pulses for
each tooth edge that breaks the
magnetic field created by...

CMP (Camshaft Position)
ELECTRICAL COMPONENTS
107
53
 • The camshaft position signal source
is a magnetic pickup sensor 
mounted on the left front side of the
engine block.
 • The sensor reacts to a peg, pressed
into the camshaft at the front of the
engine.
 • The peg will pass the sensor once
per camshaft revolution, the sensor
will produce a single pulse 
correspondingly.
 • Camshaft speed is derived from the
frequency of the CMP sensor 
signal.PCM to the FICM so that the FICM
can perform fueling...

ELECTRICAL COMPONENTS
108
ECT (Engine Coolant Temp.) • When the temperature of the
coolant increases, the resistance of
the thermistor decreases and the
signal voltage decreases.  • The ECT sensor is a two (2) wire
thermistor sensor.
 • The PCM supplies a 5 volt 
reference signal which the ECT
sensor uses to produce an analog
voltage.
 • The ECT sensor changes 
resistance when exposed to 
different temperatures.
 • When the temperature of the
coolant decreases, the resistance
of the thermistor increases...

ELECTRICAL COMPONENTS
109
55
EGRVP (Exhaust Gas
Recirculation Valve Position)
 • The EGRVP sensor is a three (3)
wire potentiometer type sensor.
 • The PCM supplies a 5 volt 
reference voltage that the EGRVP
uses to produce a linear analog
voltage that indicates the amount of
movement of the valve.
 • The PCM monitors EGRP as the
engine is operating to modulate the
EGR valve.
 • This is a closed loop function which
means that the PCM continuously
monitors the EGRVP to ensure 
proper valve operation. 

EOP (Engine Oil Pressure
Switch)
ELECTRICAL COMPONENTS
11 0
 • The EOP (Engine Oil Pressure
Switch) is a switch that closes a 
circuit to ground after engine oil
pressure reaches approximately 
5-7psi.
 • This switch controls the oil pressure
gauge on the instrument panel.
When pressure is above 7psi the
gauge will read normal and if the
pressure drops below 6 psi the
gauge will show 0.
 • The information from the switch is
not fed back to the PCM in any way
and is to be used as a reference
only.
56 

EOT (Engine Oil Temperature)
ELECTRICAL COMPONENTS
111
57
 • The EOT sensor is a two (2) wire
thermistor type sensor.
 • The PCM supplies a 5 volt 
reference signal which the EOT
sensor uses to produce an analog
voltage that indicates temperature.
 • The PCM monitors engine oil 
temperature via the EOT sensor
signal to control,EGR, glow plugs,
VGT, and fuel quantity and timing
throughout the operating range of
the engine.
 • The EOT signal allows the PCM to
compensate for oil viscosity 
variations due to...

EP (Exhaust Pressure)
ELECTRICAL COMPONENTS
11 2
 • The EP sensor is a three (3) wire
variable capacitance sensor.
 • The PCM supplies a 5 volt 
reference signal which the EP
sensor uses to produce a linear
analog voltage that indicates 
pressure.
 • The EP measures exhaust back
pressure so that the PCM can 
control the VGT and EGR system.
58 

IAT1 (Intake Air Temperature
#1)
ELECTRICAL COMPONENTS
11 3
59
 • The Intake Air Temperature1 (IAT1)
sensor is a two wire thermistor 
sensor that is located inside the
Mass Air Flow (MAF) sensor
 • The PCM supplies a 5 volt 
reference signal which the IAT1
uses to produce an analog voltage
that indicates the intake air 
temperature.
 • The IAT1 sensor’s primary function
is to measure intake air 
temperature to control the timing
and fuel rate when cold starting.
The continuous monitoring by the
IAT1...