service FORD FESTIVA 1991 User Guide

Back To Article
N - REMOVE/INST ALL/OVERHAUL
1991 ENGINE PERFORMANCE Ford/Mercury Rem oval, Overhaul & Installation
INTRODUCTION
Removal, overhaul and installation procedures are covered in this article. If component removal and installation is primarily an unbolt and
bolt-on procedure, only a torque specification may be furnished.
IGNITION SYSTEM
DISTRIBUTOR
Removal
Disconnect negative battery cable. On Capri, disconnect vacuum hose from vacuum control unit. Disconnect coil wire from distributor cap.
Remove screws and distributor cap. Disconnect electrical connectors. Mark position of distributor housing to cylinder head for reassembly.
Remove distributor mounting bolts and distributor.
Installation
To install, reverse removal procedure. Install new "O" ring if damaged or worn. Insert distributor and rotate until offset drive tangs engage
camshaft slots. See Fig. 1
, Fig. 2 or Fig. 3 . Check and adjust timing as required.

Fig. 1: Exploded View of Distributor Assembly (Festiva)

Courtesy of FORD MOTOR CO. NOTE:On Festiva, DO NOT disassem ble distributor. Entire unit is serviceable only by com plete replacem ent.
Page 1 of 5 MITCHELL 1 ARTICLE - N - REMOVE/INSTALL/OVERHAUL 1991 ENGINE PERFORMANCE Ford/Mercury Removal, O
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B959286D2%2D3A85%2D4BFC%2D9C5C%2D
...

Back To Article
C - SPECIFICATIONS
1991 ENGINE PERFORMANCE Ford/Mercury - Service & Adjustm ent Specifications
INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you
are familiar with an adjustment procedure and only need a specification.
CAPACITIES
BATTERY SPECIFICATIONS
FLUID CAPACITIES
FLUID CAPACITIES
QUICK-SERVICE
SERVICE INTERVALS & SPECIFICATIONS
REPLACEMENT INTERVALS
BELT ADJUSTMENTS
(1)
BELT ADJUSTMENTS
(1)
MECHANICAL CHECKS
ENGINE COMPRESSION
Check engine compression at specified cranking speed with engine at normal operating temperature, all spark plugs removed and throttle wide
open.
COMPRESSION SPECIFICATIONS
ApplicationAmp Hr. Rating
1.3L & 1.6L50
ApplicationQts. (L)
Crankcase (Includes Filter)3.6 (3.4)
Cooling System (Includes Heater)5.3 (5.0)
Manual Transaxle (Mercon)2.6 (2.5)
Automatic Transaxle (Mercon)6.0 (5.7)
ApplicationQts. (L)
Crankcase (Includes Filter)
Non-Turbo3.5 (3.3)
Turbo3.7 (3.5)
Cooling System (Includes Heater)
Non-Turbo5.3 (5.0)
Turbo6.3 (6.0)
Manual Transaxle (Mercon)3.4 (3.2)
Automatic Transaxle (Mercon)6.0 (5.7)
ComponentInterval (Miles)
Air Filter30,000
Camsh aft Timin g Bel t60,000
Coolant30,000
Oil & Filter3000
Spark Plugs30,000
ApplicationNew BeltUsed Belt
A/C Belt110-125 (50-57)92-110 (42-50)
Alternator Belt110-132 (50-60)95-110 (43-50)
(1)Tension in Lbs. (Kg) Using Strand Tension Gauge
ApplicationNew BeltUsed Belt
A/C Belt110-132 (50-60)110-132 (50-60)
Alternator Belt110-132 (50-60)110-132 (50-60)
(1)Tension in Lbs. (Kg) Using Strand Tension Gauge.
ApplicationSpecification
Compression Ratio
1.3L9.7:1
1.6L(1)
Compression Pressure(2)
Page 1 of 3 MITCHELL 1 ARTICLE - C - SPECIFICATIONS 1991 ENGINE PERFORMANCE Ford/Mercury - Service & Adjustment Spe
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

VALVE CLEARANCE
IGNITION SYSTEM
IGNITION COIL
IGNITION COIL RESISTANCE
CRANKSHAFT POSITION SENSOR
CRANKSHAFT POSITION SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
SPARK PLUG TYPE
SPARK PLUG SPECIFICATIONS
FIRING ORDER & TIMING MARKS

Fig. 1: Firing Order & Distributor Rotation

IGNITION TIMING
(1)Information is not available.
(2)Lowest cylinder compression reading should not be less than 75 percent of highest cylinder compression reading.
NOTE:All m odels are equipped with hydraulic lash adjusters. No adjustm ents are required.
ApplicationPrimary (Ohms)Secondary (Ohms)
1.3L & 1.6L0.8-1.66000-30,000
ApplicationOhms
1.3L(1) 210-250
1.6L(2)
(1)Measured between CPS (Yellow/Blue) and GND terminal.
(2)Capri is equipped with Cylinder Identification (CID) sensor. Resistance is not specified.
ApplicationOhms
Coil Wire & Spark Plug Wires4000-6000 per foot
ApplicationMotorcraft
1.3LAGS32C
1.6L
Non-TurboAGSP32C
TurboAGS32C
ApplicationGap: In.- (mm)Torque: Ft.-Lbs./(N.m)
1.3L & 1.6L.039-.043 (1.0-1.1)10-17 (14-23)
ApplicationAuto. Trans.Man. Trans.
1.3L9-11 @ 8509-11 @ 700
1.6L Non-Turbo1-3 @ 8500-4 @ 850
1.6L Turbo10-14 @ 8500-4 @ 850
Page 2 of 3 MITCHELL 1 ARTICLE - C - SPECIFICATIONS 1991 ENGINE PERFORMANCE Ford/Mercury - Service & Adjustment Spe
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

FUEL SYSTEM
FUEL PUMP
FUEL PUMP PERFORMANCE
INJECTOR RESISTANCE
FUEL INJECTOR RESISTANCE
IDLE SPEED
IDLE SPEED
(1)
THROTTLE POSITION SWITCH (TPS)
TPS ADJUSTMENT NOTE:For fuel pressure specifications, see FUEL PRESSURE SPECIFICAT IONS
article.
NOTE:Fuel pum p perform ance is a m easurem ent of fuel pressure and volum e availability, not regulated fuel
pressure.
ApplicationPressure -psi kg/cm2 )Min. Vol. in 10 sec. oz. (CC)
1.3L(1) 7.4 (220)
1.6L(1) 5.5 (167)
(1)For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS article.
ApplicationOhms
1.3L & 1.6L12-16
ApplicationAuto. Trans.Man. Trans.
1.3L830-870680-720
1.6L800-900800-900
(1)With jumper wire connected between single-wire STI terminal and ground.
NOTE:Capri is equipped with throttle position sensor. No adjustm ent is required.
Test Condition (1) Cont. Between IDL-TLCont. Between PSW-TL
.02" (.5 mm)YesNo
.03" (.7 mm)NoNo
Wide Open ThrottleNoYes
(1)Insert specified feeler gauge between throttle adjustment screw and stop lever.
Copyr ight 2009 Mitchell Repair Information Company, LLC. All Rights Reserved.
Article GUID: A00022695
Page 3 of 3 MITCHELL 1 ARTICLE - C - SPECIFICATIONS 1991 ENGINE PERFORMANCE Ford/Mercury - Service & Adjustment Spe
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

Back To Article
I - SYST EM/COMPONENT T EST S
1991 ENGINE PERFORMANCE Ford Motor Co. - Ford/Mercury System & Com ponent T esting
INTRODUCTION
Before testing separate components or systems, perform procedures in BASIC TESTING article in the ENGINE PERFORMANCE Section.
Since many computer-controlled and monitored components set a trouble code if they malfunction, also perform procedures in TESTS
W/CODES article in the ENGINE PERFORMANCE Section.
AIR INDUCTION SYSTEMS
TURBOCHARGERS
Wastegate Actuator
Disconnect air hose from wastegate actuator. Apply 7.0-8.6 psi (.5-.6 kg/cm2 ) regulated air pressure to wastegate inlet fitting. Replace
turbocharger if wastegate actuator rod does not move.
COMPUTERIZED ENGINE CONTROLS
ELECTRONIC CONTROL ASSEMBLY (ECA)
Ground Circuits
Turn ignition off. Connect BOB, leaving ECA disconnected. Measure resistance between each specified BOB pin and ground. See ECA
GROUND CIRCUIT RESISTANCE table. Repair indicated ECA ground circuit if resistance is greater than 5 ohms.
ECA GROUND CIRCUIT RESISTANCE
Power Circuits
Turn ignition off. Connect BOB, leaving ECA disconnected. Turn ignition on. Repair indicated ECA power circuit if battery voltage d o e s n o t
appear on specified BOB pin. See ECA POWER CIRCUITS RESISTANCE
.
ECA POWER CIRCUIT RESISTANCE
ENGINE SENSORS & SWITCHES
Check each component and all related wiring for any looseness or damage. Make all resistance and voltage measurements using Breakout Box
(BOB) unless specified otherwise.
BAROMETRIC PRESSURE SENSOR (1.3L)
This unit is incorporated into the ECA, and cannot be checked or serviced separately. If a Code 14 is set and cannot be cleared, replace the
ECA.
BAROMETRIC PRESSURE (BP) SENSOR (1.6L) NOTE:T esting individual com ponents does not isolate shorts or opens. Perform all voltage tests with a Digital
Volt-Ohm m eter (DVOM) with a m inim um 10-m egohm input im pedance, unless stated otherwise in test
procedure. Use ohm m eter and Breakout Box (BOB) (007-00033) to isolate wiring harness shorts or
opens.
ECA PinBOB PinWire Color
1.3L
2A39,40,44Black
2B20Black
2C16Black
2D46,49Black
2J (2) (3) 6(3) White/Red
2J (4) 6Black
1.6L
2R49Black
3A (1) (1) 20Black
3G (1) (1) 40Black
(1)Turbo only.
(2)A/T models only.
(3)No continuity on A/T models.
(4)M/T models only.
ECA PinBOB PinWire Color
1.3L: 1A1White/Red
1.6L: 3J1Black/Red
Page 1 of 7 MITCHELL 1 ARTICLE - I - SYSTEM/COMPONENT TESTS 1991 ENGINE PERFORMANCE Ford Motor Co. - Ford/Merc
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

resistance is not within specifications. If injector resistance is okay, check for 12 volts at each injector connector. Repair or replace
connector as necessary.
FUEL INJECTOR RESISTANCE
IDLE CONTROL SYSTEM
Idle Speed Control By-pass Air (ISC-BPA) Valve
1. Remove ISC-BPA valve from engine. Connect a hose from a hot water tap to coolant inlet nipple on ISC-BPA valve. Blow through
valve air port. Note resistance to airflow.
2. Supply hot water at 130°F (56°C) minimum to ISC-BPA valve and allow time for valve to respond. Blow through valve again. If
resistance to airflow does not increase when valve is hot, replace ISC-BPA valve.
3. Apply 12 volts to solenoid terminals. If solenoid does not click, replace ISC-BPA valve.
IGNITION SYSTEM
PICK-UP COIL
Check continuity of pick-up coil. If continuity exists, replace igniter unit. If continuity does not exist, replace pick-up coil.
TIMING CONTROL SYSTEMS
Advance Components (1.3L)
Ignition timing advance is controlled by the ECA.
Advance Components (1.6L Non-Turbo)
Ignition advance is controlled by a centrifugal advance mechanism within the distributor, and by a vacuum advance mechanism. If centrifugal
advance is not within specification, service the distributor. Replace the vacuum advance mechanism if vacuum advance is not within
specification. See IGNITION TIMING
. Also see IGNITION TIMING in ADJUSTMENTS article in the ENGINE PERFORMANCE Section.
IGNITION TIMING
Retard Components (1.6L Turbo)
Positive pressure to the vacuum advance cylinder on the distributor retards ignition timing. The ECA also retards ignition timing when it
receives a signal from a Knock Sensor (KS), Knock Control Unit (KC) and related circuitry.
1. Disconnect and plug hoses at distributor. Connect timing light and start engine. Record ignition timing. Tap intake plenum with plastic
mallet while observing ignition timing. If timing retards, knock control circuitry is okay. If timing does not retard, go to step 2).
2. Unplug KC sensor service connector near ECA. Tap intake plenum with plastic mallet while observing ignition timing. If ignition timing
retards, go to step 3). If timing does not retard, go to step 4).
3. Reconnect KC service connector. Tap intake plenum with plastic mallet while observing ignition timing. If ignition timing retards,
replace knock controller. If ignition timing does not retard, go to step 4).
4. Unplug KC service connector near ECA. Temporarily install a known good KS. Tap intake plenum with plastic mallet while observing
ignition timing. If ignition timing retards, replace KS. If ignition timing does not retard, go to step 5).
5. Turn ignition off. Connect BOB. Ensure VPWR and ground wires to KC are okay. Check all KC wiring for shorts or opens. If wiring is
okay, replace KC.
EMISSION SYSTEMS & SUB-SYSTEMS
FUEL EVAPORATION
Canister Purge Solenoid
1. Disconnect vacuum hoses from solenoid. See Fig. 1 . Blow through port "A". Ensure no air exhausts from port "B".
2. Disconnect 2-wire connector from solenoid. Connect 12 volts to one terminal and ground the other terminal of solenoid. Blow air
though port "A". Ensure air exhausts through port "B".
ApplicationOhms
1.3L & 1.6L12-16
NOTE:For basic ignition checks, see BASIC T EST ING article in the ENGINE PERFORMANCE Section.
ApplicationAuto. Trans.Man. Trans.
1.6L Non-Turbo1-3 @ 8500-4 @ 850
1.6L Turbo10-14 @ 8500-4 @ 850
Page 5 of 7 MITCHELL 1 ARTICLE - I - SYSTEM/COMPONENT TESTS 1991 ENGINE PERFORMANCE Ford Motor Co. - Ford/Merc
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

Fig. 1: Testing Canister Purge Solenoid

Courtesy of FORD MOTOR CO.
Carbon Canister
1. Start and run engine until it is at operating temperature. Stop engine. Remove carbon canister. Carbon canister on 1.3L is located under
brake booster. Carbon canister is located in right side of engine compartment near cowl panel on 1.6L.
2. Inspect carbon canister for presence of liquid fuel, as evidenced by odor or weight. Blow into air vent and ensure air exits fro m fu el
vapor inlet. Replace carbon canister if it contains fuel, or if air does not pass freely through it.
POSITIVE CRANKCASE VENTILATION (PCV)
1. Remove PCV valve from valve cover and disconnect it from PCV h o se . S h a ke va l ve vigo r o u sl y t o e n su r e p l u n ge r is fr e e t o mo ve .
Replace PCV valve if plunger is not free.
2. Idle engine until it is warm. Remove fresh air hose at inlet end. Plug nipple immediately to prevent stalling. Verify presence of vacuum at
inlet end of hose. If vacuum is not present, replace PCV valve or service hoses or loose oil dipstick.
THROTTLE CONTROLS
Dashpot
Disconnect PCV valve. Remove resonance chamber. Push dashpot rod in and then release it. Replace dashpot if rod does not go in slowly and
return quickly.
MISCELLANEOUS CONTROLS
A/C CLUTCH
A/C Clutch Relay
Remove relay from its socket near left headlight, in front of battery. Connect ohmmeter to contact terminals (Blue/Red and Black/White wires
on mating connector). Ohmmeter should indicate continuity. Supply 12 volts to remaining terminals (Green/Yellow and Yellow wires on
mating connector). Ohmmeter should indicate no continuity.
COOLING FAN
Cooling Fan
Unplug connector from cooling fan. Apply 12 volts to one terminal of fan connector. Ground remaining fan connector terminal. Replace fan if
it does not run.
Cooling Fan Control Relay
Remove relay from its socket near left headlight. Connect ohmmeter to contact terminals. Wire colors are Yellow/Red and Black on mating
connector on Festiva; Yellow/Green and Black on Capri. Ohmmeter should indicate continuity. Supply 12 volts to remaining 2 relay
terminals. Ohmmeter should indicate no continuity.
NOTE:Although som e of the controlled devices listed here are not technically engine perform ance
com ponents, they can affect driveability if they m alfunction.
Page 6 of 7 MITCHELL 1 ARTICLE - I - SYSTEM/COMPONENT TESTS 1991 ENGINE PERFORMANCE Ford Motor Co. - Ford/Merc
...
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

memory. Intermittent failures may be caused by a sensor, connector, or wiring. See INTERMITTENTS in TESTS W/O CODES article in the
ENGINE PERFORMANCE Section.
VISUAL CHECK & VEHICLE PREPARATION
Before connecting any equipment to diagnose EEC system, perform following preparatory procedures:
Verify condition of air cleaner and air ducts.
Check all vacuum hoses for leaks, restrictions, or improper routing.
Check EEC system wiring harness electrical connections for corrosion, bent or broken pins, loose wires or terminals, or improper
routing.
Check ECA, sensors, and actuators for physical damage.
Check engine oil and coolant level.
Perform all necessary safety precautions to prevent personal injury or vehicle damage.
Set parking brake. Place shift lever in Park for automatic transmissions, or Neutral for manual transmissions. DO NOT move shift lever
during test unless specifically directed.
Turn off all lights and accessories. Ensure vehicle doors are closed when measuring voltage or resistance.
Start engine. Run at idle until upper radiator hose is hot and pressurized and engine is off fast idle. Check for leaks around exhaust
manifold, exhaust gas oxygen sensor, and vacuum hose connections.
Turn ignition off. Service items as required. Go to EQUIPMENT HOOK-UP .
EQUIPMENT HOOK-UP
VOM
1. Turn ignition off. Connect a jumper wire from STI connector to ground. Refer to SELF-TEST CONNECTOR LOCATION and
SELF
-TEST CONNECTOR WIRE COLORS tables. See Fig. 1 .
2. Connect VOM between STO terminal and engine ground. Set VOM to measure 0-20 volts DC.
CHECK ENGINE Light (MIL)
Connect a jumper wire between STI connector and ground.
SUPER STAR II Tester
Turn ignition off. Connect adapter cable leads to diagnostic tester. Connect service adapter cables to vehicle self-test connectors. Ground
adapter cable.
SELF-TEST CONNECTOR LOCATION
SELF-TEST CONNECTOR WIRE COLORS

Fig. 1: Self
-Test Connector Terminal ID
Courtesy of FORD MOTOR CO.
RETRIEVING CODES
Reading Service Codes
ApplicationLocation
1.3LLeft Rear Corner Of Engine Compartment
1.6LRight Rear Corner Of Engine Compartment
CircuitWire Color
1.3L
SMLBlue/Green
STIYellow/Green
STOYellow/White
1.6L
SMLBlack/Blue
STIYellow
STOGreen/Black
Page 2 of 20 MITCHELL 1 ARTICLE - G - TESTS W/CODES 1991-92 ENGINE PERFORMANCE Ford Motor Co. Self-Diagnostics
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

Engine control system communicates malfunctions to technician through service codes. These service codes are 2-digit numbers representing a
particular defect. Service codes are transmitted through STO connector.
Service codes are displayed as timed pulses, and may be read with a VOM or Super Star II tester. VOM displays codes by needle sweeps. See
Fig. 2
.
Turn ignition off. Ensure all procedures of EQUIPMENT HOOK
-UP have been followed. Engine should be at normal operating
temperature.

Fig. 2: Reading Service Codes With VOM

Courtesy of FORD MOTOR CO.
VOM
Disconnect and reconnect jumper wire from STI terminal to ground. Turn ignition on. Record displayed codes. Erase codes, and repeat test
procedure to verify all codes are currently valid. See ERASING CODES & RETESTING . Service only those codes which appear during
retest. Refer to TROUBLE CODE DEFINITION
table to find appropriate pinpoint test.
MIL
Turn ignition on. Connect a jumper wire between STI connector and ground. Observe MIL, and record pulses to determine codes stored.
SUPER STAR II Tester
Set center button to TEST position. Turn ignition on. Turn tester on. When activated, tester should display 888 for 2 seconds. Release and
reset center TEST button. After all codes are displayed, release center button. All codes in tester memory may now be reviewed.
ERASING CODES & RETESTING
Erasing codes and retesting will give an indication of whether codes are hard or intermittent defects. Hard codes reset immediately and will be
displayed during retest.
Disconnect negative battery cable. Press brake pedal for 5-10 seconds. Turn off VOM or Super Star II tester. Reconnect battery. Perform tests
under RETRIEVING CODES
to again display and record codes.
TROUBLE CODE DEFINITION
TROUBLE CODE DEFINITION
NOTE:If MIL flashes continuously prior to connecting test equipm ent, go to PINPOINT T EST ST I .
Service CodeFaultCircuit & Pinpoint Test
01Ignition Diagnostic MonitorIDM
02 (1) Crankshaft Position SensorCPS
03 (2) Cylinder Identification SensorCID
06 (2) Vehicle Speed SensorVSS
08Vane Airflow MeterVAF
09Engine Coolant Temperature SensorECT
10Vane Air Temperature SensorVAT
12 (2) Throttle Position SensorTP
14Barometric Pressure SensorBP
15Exhaust Gas Oxygen SensorEGO
17Exhaust Gas Oxygen SensorEGO
25 (2) Fuel Pressure Regulator Control SolenoidPRC
26Canister Purge Control SolenoidCANP
34Idle Speed ControlISC
Codes Not ListedPower & Ground ConnectionsPGC
Page 3 of 20 MITCHELL 1 ARTICLE - G - TESTS W/CODES 1991-92 ENGINE PERFORMANCE Ford Motor Co. Self-Diagnostics
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...

CLEARING CODES
Clearing Codes Procedure
Disconnect negative battery cable. Press brake pedal for 5-10 seconds. Turn off VOM or Super Star II tester. Reconnect battery.
ECA LOCATION
ECA is located on center console behind kick panel on Capri, and under instrument panel on driver side of Festiva.
QUICK TESTS
KEY ON, ENGINE OFF (KOEO) SELF-TEST
KOEO
1. This is a test of electronic engine control system, conducted with power (voltage) applied and engine not running. Activate self-test, and
record all codes displayed.
2. Erase codes, and repeat self-test. Diagnose only codes occurring during repeat self-test. See TROUBLE CODE DEFINITION
table. If
no codes are present, proceed to KEY ON, ENGINE RUNNING (KOER) SELF
-TEST .
KEY ON, ENGINE RUNNING (KOER) SELF-TEST
KOER
1. Deactivate self-test. Start and run engine at 2000 RPM for 2 minutes to warm up EGO sensor. Turn off engine and wait 10 seconds.
2. Restart engine, and activate self-test. Record all service codes displayed. See TROUBLE CODE DEFINITION
table. If no codes are
present, proceed to SWITCH MONITOR TEST
.
SWITCH MONITOR TEST
This test procedure checks input signals received by ECA from individual switches. Use following procedure to perform switch monitor test:
Turn engine off and allow it to cool.
Ensure all accessories are turned off.
Deactivate self-test.
Ensure transmission is in Neutral or Park.
Turn ignition on.
SUPER STAR II Tester
Connect Super Star II tester adapter cable. Turn on tester. Latch center button. Operate each switch listed in SWITCH MONITOR TEST
table. Note output of LED on adapter cable as each switch operates. Record test results.
VOM
1. Ground STI connector. Connect VOM positive lead to SML terminal on self-test connector. Connect negative lead to ground. See Fig.
1 .
2. Operate each switch listed in SWITCH MONITOR TEST
table. Note output on VOM as each switch is operated. Go to specified
PINPOINT TEST if any switch does not meet specification.
SWITCH MONITOR TEST
(1)Festiva only.
(2)Capri only.
NOTE:DO NOT m ove throttle during KOEO self-test.
NOTE:It is necessary to clear codes in m em ory before perform ing this test. DO NOT m ove throttle during test.
NOTE:All switches m ust be tested individually. Allowing a switch to rem ain on while testing another will lead
to false test results.
NOTE:DO NOT m ove throttle, clutch, or transm ission lever unless so directed.
SwitchVOM Indication/Condition(1) Pinpoint Test
A/C SwitchLess Than 1.5 Volts; A/C & Blower Switch OnSTG
Blower Motor SwitchLess Than 1.5 Volts; Switch Set To "2" Or HigherSTG
Brake On/Off SwitchLess Than 1.5 Volts; Brake Pedal Partially
PressedSTP
Clutch Engage/Neutral Gear Switch (2) Less Than 1.5 Volts; In Gear, Clutch ReleasedSTG
Coolant Temperature SwitchLess Than 1.5 Volts; Cooling Fan OnSTP
Defrost SwitchLess Than 1.5 Volts; Defrost Switch OnSTP
Headlight SwitchLess Than 1.5 Volts; Headlight Switch OnSTP
Id l e Swit chLess Than 1.5 Volts; Accelerator Pedal PressedSTG
Page 4 of 20 MITCHELL 1 ARTICLE - G - TESTS W/CODES 1991-92 ENGINE PERFORMANCE Ford Motor Co. Self-Diagnostics
3/10/2009 http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7B7DD6473C%2DB5BB%2D4F20%2D9D70%2D
...