Ford Falcon. Manual — part 221

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Powertrain Control Management

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DIAGNOSIS AND TESTING (Continued)

LPG

acronym of Liquefied Propane Gas. Used as an alternative to petroleum fuel in

combustion engines

LUS

acronym for Lock up Solenoid

M/T

Manual Transmission

Manifold

A device designed to collect or distribute fluid, air or the like

MAP

acronym for Manifold Absolute Pressure. The absolute pressure of the intake manifold

air

Module

A self-contained group of electrical/electronic components, which is designed as a

single renewable unit

Multiplexing

the simultaneous transmission of two or more signals over a single circuit. The EEC-V

uses multiplexing to communicate with the NGS

NC

acronym for Normally Closed electrical Contact

NO

acronym for Normally Open electrical Contact

NOx

Oxides of Nitrogen

OCV

acronym for Oil Control Valve. Also known as a Camshaft Position Actuator. Used on

the VCT to control oil pressure to the phaser.

OHC

acronym for Overhead Camshaft. An engine configuration that uses a camshaft

positioned above the valves Open Circuit - A circuit which does not provide a complete

path for flow of current

OSS

acronym for Output Shaft Speed Sensor. A sensor which provides driveshaft speed

information

PCM

acronym for Powertrain Control Module

PCS

acronym for Power Control Solenoid

PCV

acronym for Positive Crankcase Ventilation. Positive ventilation of crankcase emissions

Phaser

a mechanism used on VCT to vary camshaft angle

PID

acronym for Parameter Identification. Identifies an address in memory which contains

vehicle operating information

PIP

acronym for Profile Ignition Pick-up. Provides crankshaft or camshaft position

information for ignition synchronisation

Power Steering

A system which provides additional force to the steering mechanism, reducing the

driver’s steering effort

Powertrain

The elements of a vehicle by which motive power is generated and transmitted to the

driven axles

PSPS

acronym for Power Steering Pressure Switch. Indicates the pressure in the power

steering system

Pulse Width

a continually changing digital signal turned on and off or a percentage of the available

Modulation

on pulse off cycle time. A signal on for 30% and off 70% of the time is a 30% On PWM

signal

PRIME

acronym for the LPG PRIME solenoid.

Pump

A device used to raise, transfer, or compress fluids by suction, pressure or both

PWRGND

Power Ground. The main ground circuit in the EEC-V system

PWRSTN

acronym for Power Sustain. A PCM output that powers the VPWR relay on for a short

delay after the ignition is keyed OFF.

Relay

A generally electromechanical device in which connections in one circuit are opened or

closed by changes in another circuit

RBS

acronym for Redundant Brake Switch used for the cruise control feature

RGS

Acronym for the Reverse Gear Switch used on manual transmissions.

Rich

an inadequate amount of air (or too much fuel) in the air-fuel ratio being supplied to the

combustion process

RPM

Engine speed in revolutions per Minute

SCRSA

Acronym for Speed Control Range Sensor (Analogue signal).

Short Circuit

An undesirable connection between a circuit and any other point

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Powertrain Control Management

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DIAGNOSIS AND TESTING (Continued)

SHRTFT

acronym for Short Term Fuel Trim

Signal

A fluctuating electric quantity, such as voltage or current, whose variations represent

information

SIGRTN

acronym for Signal Return. A dedicated sensor ground circuit that is common to two or

more sensors

Solenoid

A device consisting of an electrical coil which, when energised, produces a magnetic

field in a plunger that is pulled to a central position. A solenoid may be used as an

actuator in a valve or switch

Speed

The magnitude of velocity (regardless of direction)

SS x

acronym for Shift Solenoid. A device that controls shifting in an automatic transmission

STRTEN

Acronym for Start Enable relay output.

Switch

A device for making, breaking, or changing the connections in an electrical circuit

System

A group of interacting mechanical or electrical components serving a common purpose

Tachometer

A meter that provides a measure of engine speed in RPM

TAS

Acronym for Travel Assistance Service, the signal recieved by the PCM from the

Restraint Control Module, RCM, when it detects deployment level impact events.

TDC

acronym for Top Dead Centre - relating to the position of the piston within the cylinder

Test

A procedure whereby the performance of a product is measured under various

conditions

TFT

acronym for Transmission Fluid Temperature. Indicates temperature of transmission

fluid

Throttle

A valve for regulating the supply of a fluid, usually air or an air-fuel mix, to an engine

Timing

Relationship between spark plug firing and piston position usually expressed in

crankshaft degrees before (BTDC) or after (ATDC) top dead centre of the compression

stroke

T-MAP

acronym for Temperature and Manifold Absolute Pressure Sensor

TP

acronym for Throttle Position sensor. Indicates the position of the throttle plate. The TP

sensor assembly has two independent sensor outputs

TPS_VREF

acronym for Throttle Position sensor VREF. The 5V supply for the sensor

TPS_RTN

acronym for Throttle Position sensor RTN. The 0V supply for the sensor

TRS-A1

acronym for Transmission Range Sensor - (Analogue signal) 1. The transmission

mounted sensor gear position.

TRS-A2

acronym for Transmission Range Sensor - (Analogue signal) 2. The centre console

mounted electronic Sport Shift sensor.

Transient

Remaining only for a brief time

Transmission

A device which selectively increases or decreases the ratio of relative rotation between

its input and output shafts.

TURBO

acronym for Turbocharger

Variable

A process of passing a magnetic field through wire windings and inducing a voltage

Reluctance
Valve

A device by which the flow of liquid, gas, vacuum, or loose material in bulk may be

started, stopped or regulated by a movable part that opens, shuts or partially obstructs

one or more ports or passageways. A “Valve” is also the moveable part of such a

device

VCT

acronym for Variable Camshaft Timing

VPS

acronym for Variable Pressure Control Solenoid 5

VPWR

acronym for Vehicle Power. A switched circuit that provides power to the EEC system.

Compare “Battery Positive Voltage (B+).”

VREF

acronym for Reference Voltage. A dedicated circuit that provides a 5.0 volt signal used

as a reference by certain sensors

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DIAGNOSIS AND TESTING (Continued)

VSOUT

acronym for Vehicle Speed Output. An output which provides speed information as a

frequency signal proportional to vehicle speed

VSS

acronym for Vehicle Speed Sensor. A sensor which provides vehicle speed information

WOT

acronym for Wide Open Throttle. A condition of maximum airflow through the throttle

body

The glossary is a list of technical terms or acronyms

and their definitions. It is not intended to be a

dictionary of components and their functions. If a

detailed description of a specific component is
desired, refer to the related Workshop Manual Group.

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Powertrain Control Management

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GENERAL PROCEDURES

3. Locate 565B-W (Black wire with white stripe) and

Powertrain Control Module

splice the wire at the back of connector C-119.

Accessing vehicle speed signal for installation of

Refer to Connector Views chapter 700-07-00-9.

taximeters

CAUTION: Vehicle speed signal must NOT be

accessed via the ABS system as this may

compromise system integrity.
NOTE: The Power Control Module (PCM) generates

the vehicle speed signal which can be accessed by

taximeters. The B36VSOUT is a pulsed 12V signal of

approximately 5000 pulses/km which is used by

SATNAV (Refer to chapter 419-07 for further

SATNAV information) to measure speed. This

outputted signal should be accessed by taximeters to

monitor vehicle speed.

1. Remove outer front LHS scuff plate.

4. Check integrity of taximeter. Taximeters to be

used with the PCM should have an input

resistance to ground of between 4.7kOhm and

15kOhm

5. Re-install scuff plates.

Intake Manifold Charge Control

Adjustment

1. Using a suitable vacuum pump and gauge, apply

a 40kPa vacuum to IMCC actuator.

2. Adjust IMCC set screw to achieve the specified

clearance between the set screw and the actuator

arm.

IMCC Clearance Specification

2. Remove inner front LHS scuff plate.

1. 0.65 - 0.80 mm

This will expose the B36VSOUT wiring which

includes the 565B-W wire and C-119 connector.

VCT Solenoid Valve

Cleaning Procedure

Items required.
1. Aerosol can of suitable cleaning fluid such as CO

electrical cleaning fluid, Compressed air or

similar.

2. Clean

Rag.

3. Wiring

Loom.

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