mirror DAEWOO LACETTI 2004 Service Repair Manual

v
TABLE OF CONTENTS
Section 0B General Information
Section 1 Engine
Section 1A General Engine Information
Section 1C1 1.4L/1.6L DOHC Engine Mechanical
Section 1C2 1.8L DOHC Engine Mechanical
Section 1D Engine Cooling
Section 1E Engine Electrical
Section 1F Engine Controls
Section 1G Engine Exhaust
Section 2 Suspension
Section 2A Suspension Diagnosis
Section 2B Wheel Alignment
Section 2C Front Suspension
Section 2D Rear Suspension
Section 2E Tires and Wheels
Section 3 Driveline/Axle
Section 3A Automatic Transaxle Drive Axle
Section 3B Manual Transaxle Drive Axle
Section 4 Brakes
Section 4A Hydraulic Brakes
Section 4B Master Cylinder
Section 4C Power Booster
Section 4D Front Disc Brakes
Section 4E1 Rear Disc Brakes
Section 4E2 Rear Drum Brakes
Section 4F Antilock Brake System
Section 4G Parking Brake
Section 5 Transmission/Transaxle
Section 5A1 ZF 4HP16 Automatic Transaxle
Section 5A2 AISIN Automatic Transaxle
Section 5B Five-Speed Manual Transaxle
Section 5C Clutch
Section 6 Steering
Section 6A Power Steering System
Section 6B Power Steering PumpSection 6C Power Steering Gear
Section 6E Steering Wheel and Column
Section 7 Heating, Ventilation, and Air
Conditioning (HVAC)
Section 7A Heating and Ventilation System
Section 7B Manual Control Heating, Ventilation,
and Air Conditioning System
Section 7D Automatic Temperature Control HVAC
Section 8 Restraints
Section 8A Seat Belts
Section 8B Supplemental Inflatable Restraints
(SIR)
Section 9 Body and Accessories
Section 9A Body Wiring System
Section 9B Lighting Systems
Section 9C Horns
Section 9D Wipers/Washer Systems
Section 9E Instrumentation/Driver Information
Section 9F Audio Systems
Section 9G Interior Trim
Section 9H Seats
Section 9I Waterleaks
Section 9J Windnoise
Section 9K Squeaks and Rattles
Section 9L Glass and Mirrors
Section 9M Exterior Trim
Section 9N Frame and Underbody
Section 9O Bumpers and Fascias
Section 9P Doors
Section 9Q Roof
Section 9R Body Front End
Section 9S Body Rear End
Section 9T1 Remote Keyless Entry and Anti–Theft
System
Section 9T2 Immobilizer Anti–Theft System

GENERAL ENGINE INFORMATION 1A – 3
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
20Inspect the bearing clearances.
Are the bearing clearances more than the specified
values?Crankshaft
0.026 ~0.046
mm
(0.0010~0.001
8 in.)
Connecting
Rod 0.019 ~
0.070 mm
(0.0007 ~
0.0027 in.)Go to Step 21Go to Step 22
21Replace the bearing, if necessary.
Is the repair complete?–Go to Step 1–
22Inspect the oil galleries.
Are the oil galleries cracked, porous, or plugged?–Go to Step 23Go to Step 24
23Repair or replace the engine block.
Is the repair complete?–Go to Step 1–
24Inspect the gallery plugs.
Are any of the gallery plugs missing or installed im-
properly?–Go to Step 25Go to Step 26
25Install the plugs or repair, as necessary.
Is the repair complete?–Go to Step 1–
26Inspect the camshaft.
Is the camshaft worn or is there evidence of poor
machining?–Go to Step 27System OK
27Replace the camshaft.
Is the repair complete?–Go to Step 1–
OIL LEAK DIAGNOSIS
Most fluid oil leaks are easily located and repaired by visu-
ally finding the leak and replacing or repairing the neces-
sary parts. On some occasions, a fluid leak may be difficult
to locate or repair. The following procedures may help you
in locating and repairing most leaks.
Finding the Leak:
1. Identify the fluid. Determine whether it is engine oil,
automatic transmission fluid, power steering fluid,
etc.
2. Identify where the fluid is leaking from.
1) After running the vehicle at normal operating
temperature, park the vehicle over a large sheet
of paper.
2) Wait a few minutes.
3) Find the approximate location of the leak by the
drippings on the paper.
3. Visually check around the suspected component.
Check around all the gasket mating surfaces for
leaks. A mirror is useful for finding leaks in areas
that are hard to reach.
4. If the leak still cannot be found, it may be neces-
sary to clean the suspected area with a degreaser,
steam, or spray solvent.
1) Thoroughly clean the area.2) Dry the area.
3) Operate the vehicle for several miles at normal
operating temperature and varying speeds.
4) After operating the vehicle, visually check the
suspected component.
5) If you still cannot locate the leak, try using the
powder or black light and dye method.
Powder Method:
1. Clean the suspected area.
2. Apply an aerosol–type powder, (such as foot pow-
der), to the suspected area.
3. Operate the vehicle under normal operating condi-
tions.
4. Visually inspect the suspected component. Trace
the leak path over the white powder surface to the
source.
Black Light and Dye Method:
A dye and light kit is available for finding leaks. Refer to the
manufacturer ’s directions when using the kit.
1. Pour the specified amount of dye into the engine oil
fill tube.
2. Operate the vehicle under normal operating condi-
tions as directed in the kit.
3. Direct the light toward the suspected area. The
dyed fluid will appear as a yellow path leading to
the source.

4–2WUSAGE AND CAPACITY OF FUSES IN FUSE BLOCK
1. ENGINE ROOM RELAY AND FUSE BLOCK
1) POSITION OF RELAY AND FUSE
2) USAGE OF FUSE IN ENGINE FUSE BLOCK
Power
Supply
ClassificationFuse
NoCapacityUsage
Ef130ABattery Main(F13~F16, F21~F24)
Ef260AEBCM, Oil Feeding Conenctor
Ef330ABlower Relay
30SBEf430AIgnition Switch–2
BAT (+)(Slow–BlownEf530AIgnition Switch–1
Fuse)Ef620ACooling Fan Low Relay
Ef730ADefog Relay
Ef830ACooling Fan HI Relay
IGN2 (15A)Ef920APower Window Switch
IGN1 (15)Ef1015AFuel Connector, ECM (MR–140), LEGR, EI
System
30Ef1110AECM, Main Relay (Sirius D4)
BAT(+)Ef1225AHead lamp Relay, ILLUM. Relay
Ef1315ABrake Switch
IGN2 (15A)Ef1420APower Window Switch
56 LIGHTEf1515AHead Lamp HI
30Ef1615AHorn Relay, siren, Hood Contact Switch
BAT(+)Ef1710AA/C Comp. Relay
IGN1 (15)Ef1815AFuel Pump
30 BAT(+)Ef1915ACluster, Key Remind S/W, Folding Mirror Unit, MAP
Lamp, Room Lamp, Trunk Open lamp, Trunk
Open S/W
56 LIGHTBlade TypeEf2010AHead Lamp Low
IGN1 (15)/FuseEf2115AEVAP Canister Purge Solenoid, HO2S, Cooling
Fan Relay
30 BAT(+)Ef2215Ainjector, EGR, EEGR
ILLUM. (58)Ef2310ALicense Plate Lamp, Chime Bell, Tail Lamp, Head
Lamp
30 BAT (+)Ef2415AFog Lamp Relay
IGN2 (15A)Ef2510AElectric OSRV Mirror
30 BAT (+)Ef2615ACentral Door Lock Unit
56 LIGHTEf2710AHead Lamp Low
ILLUM. (58)Ef2810AILLUM. Circuit, Head Lamp, Tail Lamp
SPAREEf2910ANot Used
Ef3015ANot Used
Ef3125ANot Used

USAGE AND CAPACITY OF FUSES IN FUSE BLOCKW4–3
2. I.P FUSE BLOCK
1) POSITION OF FUSE AND RELAY
2) USAGE OF FUSE IN I.P FUSE BLOCK
Power
Supply
ClassificationFuse
NoCapacityUsage
IGN1 (15)Blade TypeF110ASDM
FuseF210ATCM, ECM, Generator, VGIS,VSS
F315AHazard Switch
F410ACluster, Chime Bell, Brake Switch, SSPS Module,
A/C Control Switch
–F5––
IGN2 (15A)F610AA/C Comp. Relay, Defog Relay, Power Window
Relay, Head Lamp Relay
F720ABlower Relay, A/C Control Switch, FATC
F815AElectric Mirror Switch, Folding Mirror, Sun Roof
Module
IGN1 (15)F925AWiper Motor, Wiper Switch
–F10––
IGN1 (15)F1110AEBCM, Oil Feeding Connector
F1210AImmobilizer, Anti Theft Control Unit, Rain Sensor
Unit
30 BAT(+)F1310ATCM
F1415AHazard Switch
F1515AAnti Theft Control Unit
F1610ADLC
ACC (15C)F1710AAudio, Clock
F1815AExtra Power Jack
F1915ACigar Lighter
IGN1 (15)F2010AReverse Lamp Switch, PNP Switch
30 BAT(+)F2115ARear Fog Relay
F2215AClock, FATC, A/C Control Switch
F2315AAudio
F2410AImmobilizer

HYDRAULIC BRAKES 4A – 5
DAEWOO V–121 BL4
DIAGNOSIS
BRAKE SYSTEM TESTING
Brakes should be tested on a dry, clean, reasonably
smooth and level roadway. A true test of brake perfor-
mance cannot be made if the roadway is wet, greasy, or
covered with loose dirt whereby all tires do not grip the
road equally. Testing will also be adversely affected if the
roadway is crowned so as to throw the weight so roughly
that the wheels tend to bounce.
Test the brakes at different vehicle speeds with both light
and heavy pedal pressure; however, avoid locking the
brakes and sliding the tires. Locked brakes and sliding
tires do not indicate brake efficiency since heavily braked,
but turning, wheels will stop the vehicle in less distance
than locked brakes. More tire–to–road friction is present
with a heavily–braked, turning tire than with a sliding tire.
Because of the high deceleration capability, a firmer pedal
may be felt at higher deceleration levels.
There are three major external conditions that affect brake
performance:
S Tires having unequal contact and grip of the road
will cause unequal braking. Tires must be equally
inflated, and the tread pattern of the right and the
left tires must be approximately equal.
S Unequal loading of the vehicle can affect the brake
performance since the most heavily loaded wheels
require more braking power, and thus more braking
effort, than the others.
S Misalignment of the wheels, particularly conditions
of excessive camber and caster, will cause the
brakes to pull to one side.
To check for brake fluid leaks, hold constant foot pressure
on the pedal with the engine running at idle and the shift
lever in NEUTRAL. If the pedal gradually falls away with
the constant pressure, the hydraulic system may be leak-
ing. Perform a visual check to confirm any suspected
leaks.
Check the master cylinder fluid level. While a slight drop
in the reservoir level results from normal lining wear, an ab-
normally low level indicates a leak in the system. The hy-
draulic system may be leaking either internally or external-
ly. Refer to the procedure below to check the master
cylinder. Also, the system may appear to pass this test
while still having a slight leak. If the fluid level is normal,
check the vacuum booster pushrod length. If an incorrect
pushrod length is found, adjust or replace the rod.
Check the master cylinder using the following procedure:
S Check for a cracked master cylinder casting or
brake fluid leaking around the master cylinder.
Leaks are indicated only if there is at least one drop
of fluid. A damp condition is not abnormal.S Check for a binding pedal linkage and for an incor-
rect pushrod length. If both of these parts are in
satisfactory condition, disassemble the master cyl-
inder and check for an elongated or swollen primary
cylinder or piston seals. If swollen seals are found,
substandard or contaminated brake fluid should be
suspected. If contaminated brake fluid is found, all
the components should be disassembled and
cleaned, and all the rubber components should be
replaced. All of the pipes must also be flushed.
Improper brake fluid, or mineral oil or water in the fluid,
may cause the brake fluid to boil or cause deterioration of
the rubber components. If the primary piston cups in the
master cylinder are swollen, then the rubber parts have
deteriorated. This deterioration may also be evidenced by
swollen wheel cylinder piston seals on the drum brake
wheels.
If deterioration of rubber is evident, disassemble all the hy-
draulic parts and wash the parts with alcohol. Dry these
parts with compressed air before reassembly to keep alco-
hol out of the system. Replace all the rubber parts in the
system, including the hoses. Also, when working on the
brake mechanisms, check for fluid on the linings. If exces-
sive fluid is found, replace the linings.
If the master cylinder piston seals are in satisfactory condi-
tion, check for leaks or excessive heat conditions. If these
conditions are not found, drain the fluid, flush the master
cylinder with brake fluid, refill the master cylinder, and
bleed the system. Refer to ”Manual Bleeding the Brakes”
or”Pressure Bleeding the Brakes” in this section.
BRAKE HOSE INSPECTION
The hydraulic brake hoses should be inspected at least
twice a year. The brake hose assembly should be checked
for road hazard damage, cracks, chafing of the outer cov-
er, and for leaks or blisters. Inspect the hoses for proper
routing and mounting. A brake hose that rubs on a suspen-
sion component will wear and eventually fail. A light and
a mirror may be needed for an adequate inspection. If any
of the above conditions are observed on the brake hose,
adjust or replace the hose as necessary.
WARNING LAMP OPERATION
This brake system uses a BRAKE warning lamp located
in the instrument panel cluster. When the ignition switch
is in the START position, the BRAKE warning lamp should
glow and go OFF when the ignition switch returns to the
RUN position.
The following conditions will activate the BRAKE lamp:
S Parking brake applied. The light should be ON
whenever the parking brake is applied and the igni-
tion switch is ON.
S Low fluid level. A low fluid level in the master cylin-
der will turn the BRAKE lamp ON.
S EBD system is disabled. The light should be ON
when the EBD system is malfunctioning.

5–6WELECTRICAL WIRING DIAGRAMS
20. REAR WINDOW DEFROSTER & OSRV MIRROR HEATING SYSTEM CIRCUIT 5–144. . . . . . . . . . . . . . . . . . . . . . .
21. ELECTRIC OSRV (OUTSIDE REAR VIEW) MIRROR CIRCUIT 5–146. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22. FOLDING MIRROR UNIT CIRCUIT 5–148. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23. POWER WINDOW CIRCUIT5–150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) ONLY FRONT POWER WINDOW CIRCUIT 5–150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) FRONT & REAR POWER WINDOW CIRCUIT 5–152. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24. CENTRAL DOOR LOCKING SYSTEM CIRCUIT 5–154. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) NOTCH BACK5–154 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) HATCH BACK5–156 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25. CLUSTER5–158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) TEMPERATURE GAUGE, TACHOMETER, FUEL GAUGE, ODDOMETER, SPEEDOMETER & FUEL
WARNING LAMP CIRCUIT : MR–140/HV–240 5–158. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) TEMPERATURE GAUGE, TACHOMETER, FUEL GAUGE, ODDOMETER, SPEEDOMETER & FUEL
WARNING LAMP CIRCUIT : SIRIUS D4 5–160. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3) WARNING(MIL, ABS, TCS, PARKING BRAKE & CHARGING) LAMP CIRCUIT 5–162. . . . . . . . . . . . . . . . . . . . .
4) WARNING(SSPS, AIR BAG, OIL PRESSURE & SEAT BELT) LAMP & HOLD MODE CIRCUIT 5–164. . . . . . .
5) INDICATOR LAMP (FRONT & REAR FOG) & DOOR OPENING WARNING LAMP CIRCUIT 5–166. . . . . . . . .
6) INDICATOR LAMP (TURN SIGNAL, HIGH BEAM & HAZARD) & ILLUMINATION LAMP CIRCUIT 5–168. . . . .
26. AUDIO CIRCUIT5–170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) NOTCH BACK5–170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) HATCH BACK5–172 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27. ABS (ANTILOCK BRAKE SYSTEM) 5–174. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) POWER SUPPLY, WHEEL SPEED SENSOR & BRAKE SWITCH CIRCUIT 5–174. . . . . . . . . . . . . . . . . . . . . . . .
2) OIL FEEDING CONNECTOR, WARNING(ABS, TCS & BRAKE) LAMP & DLC CIRCUIT 5–176. . . . . . . . . . . . .
28. AIR BAG (SDM: SENSING & DIAGNOSTIC MODULE) CIRCUIT 5–178. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–144WELECTRICAL WIRING DIAGRAMS
20. REAR WINDOW DEFROSTER & OSRV MIRROR HEATING SYSTEM
CIRCUITa. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C101 (21 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C102 (11 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
C208 (15 Pin, White)I.P
FAT CBehind Glove Box
C209 (20 Pin, Black)FAT C
FAT C . A u xBetween Heater Core and Evaporator Core
C351 (33 Pin, Gray)Body
Front Light DoorUnder CO–Driver A Pillar
C361 (33 Pin, Gray)Body
Front Right DoorUnder Driver A Pillar
C404 (8 Pin, White)T/Gate. EXT.
BodyInside Left C Pillar
C405 (8 Pin, White)T/Gate. EXT.
T/GateBeside Left Rear Wiper Motor
C406 (6 Pin, White)T/Gate. EXT.
T/GateBeside Left Rear Wiper Motor
S302 (Brown)BodyLeft CO–Driver Leg Room
G301BodyBelow Driver Cross Member Floor Panel
G303BodyBelow Left CO–Driver Leg Room
G402T/Gate. EXT.Inside Driver C Pillar
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION

5–146WELECTRICAL WIRING DIAGRAMS
21. ELECTRIC OSRV (OUTSIDE REAR VIEW) MIRROR CIRCUITa. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C101 (21 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
C351 (33 Pin, Gray)Body
Front Light DoorUnder CO–Driver A Pillar
C361 (33 Pin, Gray)Body
Front Right DoorUnder Driver A Pillar
S302 (Brown)BodyLeft CO–Driver Leg Room
G301BodyBelow Driver Cross Member Floor Panel
G303BodyBelow Left CO–Driver Leg Room
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
J3B1P053

5–148WELECTRICAL WIRING DIAGRAMS
22. FOLDING MIRROR UNIT CIRCUITa. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C102 (11 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
C351 (33 Pin, Gray)Body
Front Light DoorUnder CO–Driver A Pillar
C361 (33 Pin, Gray)Body
Front Right DoorUnder Driver A Pillar
G301BodyBelow Driver Cross Member Floor Panel
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
J3B1P054

7D – 40IAUTOMATIC TEMPERATURE CONTROL HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
GENERAL INFORMATION
THE V5 SYSTEM
Refer to Section 7B, Manual Control Heating, Ventilation,
and Air Conditioning System,for general information de-
tails for the following:
S System Components – Functional.
S The V5 A/C System.
S V5 Compressor – Description of Operation.
S V5 Compressor – General Description.
SYSTEM COMPONENTS–CONTROL
Controller
The operation of the A/C system is controlled by the
switches on the control head. This console–mounted
heating and ventilation system contains the following
knobs and display:
Temperature Control Push Knobs
1. Raise the temperature of the air entering the ve-
hicle by pressing the top switch, with the red arrow
pointing upward.
2. Lower the temperature by pressing the bottom
switch, with the blue arrow pointing downward.
3. Actuate the air mix door by an electric motor.
4. Vary the mix of the air passing through the heater
core with the air bypassing the core.
Each press of a switch changes the set temperature by in-
crements of 0.5°C (1°F). This is shown in the temperature
window on the function display.
The Function Display
This is an LCD display indicating the status of the control
settings selected. Starting from the left end of the display,
the sections are as follows:
1. Temperature setting – Indicates the temperature set
with the temperature control knob.
2. Auto status – Indicates whether the system is oper-
ating in the full auto mode or the manual mode.
3. Defroster icon – Indicates manual selection of full
defrost mode.
4. Mode – Indicated by icon, the mode chosen by the
system in auto (or by the operator in manual) is
shown by an illumination arrow indicating the air
path.
5. A/C – A snowflake icon indicating whether the A/C
is ON or OFF.
6. Fan speed – Indicates the fan speed by illuminating
a bar based on the segment at the front, for low
speed, and adding additional segments in order up
to the fifth, for high speed.Eight Additional Push Knobs
1. Full defrost – Causes the mode motors to direct all
air to the windshield and aide window outlets for
maximum defrosting.
2. Air intake – Switches between fresh air intake, the
default, and recirculating air. Airflow arrows on the
display indicate the mode in effect.
3. Full Auto Switch – Maintains the set temperature
automatically. In this mode, the fully automatic tem-
perature control (FATC) system controls the follow-
ing:
S The air mix door motor.
S The mode door motor.
S The blower motor speed.
S The inlet air door motor.
S A/C ON/OFF.
4. OFF Switch – Turns the automatic air conditioning
and fan control off.
5. Mode Switch – Allows manual selection of the air-
flow direction.
S Selection is shown on the function display.
S Each time the mode switch is pressed, the next
function is displayed.
6. A/C Switch – Allows manual selection and control
of the air conditioning function.
7. Fan Control Switch – Allows manual selection
among five fan speeds.
8. Defogger Switch – Turns on the electric defogging
heater in the rear window and the outside rearview
mirrors, if the vehicle is equipped with heated mir-
rors.
Pressure Transducer
Pressure transducer switching incorporates the functions
of the high–pressure and the low–pressure cutout
switches along with the fan cycling switch. The pressure
transducer is located in the high–side liquid refrigerant line
behind the right strut tower, between the right strut tower
and the fire wall. The output from this pressure transducer
goes to the electronic control module (ECM), which con-
trols the compressor function based on the pressure sig-
nal.
Wide–Open Throttle (WOT) Compressor
Cutoff
During full–throttle acceleration, the throttle position sen-
sor (TPS) sends a signal to the ECM, which then controls
the compressor clutch.
High RPM Cutoff
As engine rpm approaches the maximum limit, the ECM
will disengage the compressor clutch until the engine
slows to a lower rpm.