Ford Falcon. Manual — part 210

303-14-54

Powertrain Control Management

303-14-54

DESCRIPTION AND OPERATION (Continued)

Flow

Problem

Possible Cause

Possible solution

DTCs

Additional comments

Chart

that may

Output

be set

Number

6

Poor VCT

VCT oil filters are

Check and clean

P1381

Ref: Engine Section

performance.

blocked.

filters in cam

P1386

303-01a, b & c.

Causing poor

journal caps.

drivability. Engine

Oil control valve is

Check OCV

P1381

Ref: Engine Section

runs well during

faulty/Worn out.

condition and

P1386

303-01a, b & c.

cruise conditions.

replace as

P1388

necessary.

P1383

VCT Phasers are

Check Phasers

P1381

Ref: Engine Section

worn/Faulty.

and replace as

P1386

303-01a, b & c.

necessary.

P1388

P1383

#1 camshaft journal

Check journal

P1381

Ref: Engine Section

clearances are too

clearances are

P1386

303-01a, b & c.

high.

within specification.

P1388

P1383

Electronic Throttle Body

Diagnosis

The PCM processes accelerator pedal and speed

DTCs applicable to this output are shown on the

control demand for the Electronic Throttle Body

following table

(ETB). The electric motor in the ETB moves the

DTC

Test Mode

Condition

throttle plate through a gear set. The plate is adjusted

P2100

KOEO Cont.

Throttle Actuator Control

and monitored by the PCM in a closed control loop.

Motor Circuit/Open

The TP sensor provides the PCM with feedback on

the actual position of the throttle plate.

P2101

KOEO Cont.

Throttle Actuator Control

Motor Circuit

CAUTION: The Electronic Throttle Body

Range/Performance

(ETB) must NOT be dismantled. No adjustments

P2102

KOEO Cont.

ETB motor current is

can be made to the ETB. The only serviceable

lower than expected

item on the ETB is the Throttle Position Sensor

P2103

KOEO Cont.

ETB motor current is

(TPS), which can be replaced.

higher than expected

NOTE: The preset stop-screw must not be adjusted

P2105

Cont.

Throttle Actuator Control

as it is factory set and bonded tight. Adjustment will

System - Forced Engine

likely cause failure.

Shutdown

Connections

P2107

Cont.

Throttle Actuator Control

System - Forced Engine

PCM Pin A27

. . . . . . …..ETCP

into guard mode

PCM Pin A28

. . . . . . …..ETCN

P2110

Cont

ETC in Guard Mode.

(Limp home mode)

Circuit

P2111

Cont.

Throttle Actuator Control

System - Higher throttle

opening than driver

demand

P2112

Cont.

Throttle Actuator Control

System - Lower throttle

opening than driver

demand

Failure Mode

If a fault develops in the electronic throttle control

system, a standby function is carried out. The plate is

spring loaded to a slightly open position allowing

enough air to pass to provide limited engine

operation. This spring-loaded position is preset during

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303-14-55

Powertrain Control Management

303-14-55

DESCRIPTION AND OPERATION (Continued)

manufacture and must not be adjusted in service.

EVAP Solenoid Location, I6

When operating in this mode, rpm-limiting by cylinder

cutout will occur and the warning light will be set. The

appropriate trouble code will be logged in the memory

for retrieval during Self-test mode.

Testing

1. Measure the resistance of the electronic throttle

motor

ETC Motor Resistance Specification

3 to 5

Ω

Evap Canister Purge Solenoid

The Evaporator Canister Purge Solenoid (EVAP)

<CANP> controls purging of vapours from the carbon

canister to the air intake system. The canister stores

EVAP Solenoid Location, V8

fuel vapours from the fuel tank. The Powertrain

Control Module (PCM) monitors several systems to

determine when to purge these vapours into the

intake manifold with minimum impact on engine

operation.
The positive side of the EVAP solenoid is connected

to Vehicle Power (VPWR). The PCM completes the

electrical circuit by grounding the solenoid coil in a 10

Hz duty cycle. Once purge is initiated, the duty will

gradually increase with engine speed to slowly draw

the canister vapours in the intake manifold.

Connections

PCM Pin B22. . . . . . . . . EVAP Solenoid
PCM Pin B34. . . . . . Vehicle Power (VPWR)

Circuit

Diagnosis

Diagnostic Trouble Codes (DTC) are retrieved through

the diagnostic connector using the WDS tester. Fault

Finding Tables for DTCs are in the ‘Diagnosis’

section.
DTCs applicable to the EVAP solenoid are shown in

the following table.

DTC

Test Mode

Condition

P0443

KOEO, Cont.

circuit malfunction

Testing

1. Check the operation of the EVAP solenoid.
2. Measure the resistance of the solenoid.

EVAP Solenoid Resistance Specification

50 to 70

Ω

3. Check the harness for open circuits and short

circuits.

Turbocharger Westgate Control

The PCM measures the boost pressure of the

turbocharger using the boost pressure sensor (BPS).

Boost pressure is controlled to a set pressure, which

is dependent upon the engine load, temperature and

RPM. The control system increases engine intake

pressure by diverting excess pressure away from the

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303-14-56

Powertrain Control Management

303-14-56

DESCRIPTION AND OPERATION (Continued)

wastegate actuator, through a wastegate solenoid

cycle) allowing minimum mechanical boost to be

valve mounted underneath the battery. The solenoid

delivered. The minimum mechanical boost is

is controlled by the PCM’s TURBO output.

controlled by the spring-loaded position of the

wastegate actuator. This is preset during manufacture

Connections

and must not be adjusted in service. If the boost

pressure is still higher than desired, torque limiting by

PCM Pin C21

. . . . . . . TURBO

cylinder cutout will occur. The appropriate trouble

Circuit

code will be logged in memory for retrieval during

Self-test mode.

Testing

The TURBO solenoid output is tested continuously

during vehicle operation (cont.) and whenever Key On

Engine Off (KOEO) or Key On Engine Running

(KOER) test are performed.
Testing TURBO control solenoid output
1. Connect a WDS tester to the diagnostic

connector.

2. Check the Parameter Identification (PID) value of

the WGATE. If the PID value is within

specification, then check for other Diagnostic

Trouble Code (DTC) or component faults

PID Specification

Diagnosis

DTCs applicable to this output are shown on the

PID

Description

following table.

WGATE

Turbocharger Wastegate Control

DTC

Test Mode

Condition

Transmission Outputs

P0243

KOEO, KOER

Wastegate Solenoid

Cont.

Circuit Malfunction

If several Diagnostic Trouble Code (DTC) applicable

P1227

Cont

Wastegate Control

to transmission are present, check for a short circuit to

System Failed closed -

Vehicle Power (VPWR) or ground, or moisture in the

Over Pressure

transmission harness connector.

P1228

Cont

Wastegate Control

Shift Solenoid 1

System Failed Open -

Under Pressure

Shift Solenoid 1 (SS1) <GSS1> is used on vehicles

fitted with automatic transmission to control shifting of

The P1227 and P1228 codes are total system

the gear ratios.

performance codes, and may relate to a mechanical

fault in the control system if P0243, P0236, P0237

The solenoid is wired to 12V within the transmission.

and P0238 have not been set, possible causes are:

The PCM applies 0 Volts to energise the coils of SS1

as required for gearshift operation.

Blocked or restricted wastegate solenoid ports

The automatic transmission gear shift strategy is

Damaged or missing hose(s) between wastegate

described in Section 307-01, Automatic Transmission.

solenoid and turbo compressor or wastegate

actuator.

Connections

Failed wastegate actuator diaphragm,

PCM Pin A19. . . . . . . . . ..SS1 Solenoid

Stuck open/closed wastegate valve (in turbine

housing).

Diagnosis

Loose, blocked or damaged hoses from turbo

Diagnostic Trouble Codes (DTC) are retrieved through

compressor outlet to throttle body

the diagnostic connector using the WDS tester. Fault

Damaged intercooler

Finding Tables for DTCs are in the ‘Diagnosis’

Blocked or restricted intake to turbo compressor

section.
DTCs applicable to the SS1 solenoid are shown in the

Failure Mode

following table.

If a fault develops in the turbo wastegate control

system, a standby function is carried out. The

wastegate solenoid is forced fully open (0% duty

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303-14-57

Powertrain Control Management

303-14-57

DESCRIPTION AND OPERATION (Continued)

Testing

DTC

Test Mode

Condition

P0752

KOEO, KOER

Shift Solenoid 1 (SS1)

Solenoid Test

Cont

(Auto) stuck on

1. Disconnect the harness from the transmission

P0753

KOEO, KOER

Shift Solenoid 1 (SS1)

connector.

Cont

electrical problem

2. Measure the resistance across the connector

Testing

terminals using a suitable multimeter. Replace the

solenoid if not within specification.

Solenoid Test

SS2 Solenoid Resistance Specification

23 -45

Ω

1. Disconnect the harness from the transmission

connector.

3. Check the harness for open circuits and short

circuits.

2. Measure the resistance across the connector

terminals using a suitable multimeter. Replace the

Shift Solenoid 3

solenoid if not within specification.

Shift Solenoid 3 (SS3) <MCS1> is used on vehicles

SS1 Solenoid Resistance Specification

fitted with automatic transmission to control shifting of

23 -45

Ω

the gear ratios.

3. Check the harness for open circuits and short

The solenoid is wired to 12V within the transmission.

circuits.

The PCM applies 0 Volts to energise the coils of SS3

Shift Solenoid 2

as required for gearshift operation.
The automatic transmission gear shift strategy is

Shift Solenoid 2 (SS2) <GSS2> is used on vehicles

described in Section 307-01, Automatic Transmission.

fitted with automatic transmission to control shifting of

the gear ratios.

Connections

The solenoid is wired to 12V within the transmission.

PCM Pin A17. . . . . . . . . ...SS3 Solenoid

The PCM applies 0 Volts to energise the coils of SS2

as required for gearshift operation.

Maintenance

The automatic transmission gear shift strategy is

DTCs applicable to the SS3 solenoid are shown in the

described in Section 307-01, Automatic Transmission.

following table.

Connections

DTC

Test Mode

Condition

PCM Pin A20. . . . . . . . . ...SS2 Solenoid

P0762

KOEO, KOER

Shift Solenoid 3 (SS3)

Cont

(Auto) stuck on.

Circuit

P0763

KOEO, KOER

Shift Solenoid 3 (SS3)

Cont

<MCS1> electrical

problem

Testing

Solenoid Test

1. Disconnect the harness from the transmission

connector.

2. Measure the resistance across the connector

terminals using a suitable multimeter. Replace the

solenoid if not within specification.

SS3 Solenoid Resistance Specification

23 - 45

Ω

3. Check the harness for open circuits and short

DTCs applicable to the SS2 solenoid are shown in the

circuits.

following table.

Shift Solenoid 4

DTC

Test Mode

Condition

P0757

KOEO, KOER

Shift Solenoid 2 (SS2)

Shift Solenoid 4 (SS4) <MCS2> is used on vehicles

Cont

(Auto) stuck on.

fitted with automatic transmission to control shifting of

the gear ratios.

P0758

KOEO, KOER

Shift Solenoid 2 (SS2)

Cont

electrical problem

The solenoid is wired to 12V within the transmission.

The PCM applies 0 Volts to energise the coils of SS4

as required for gearshift operation.

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