air condition MAZDA PROTEGE 1992 Repair Manual

POWER DOOR LOCK SYSTEM s
Power door lock system does not operate
(All doors)
I
Check ROOM 10A and DOOR OK NG VB: Battery voltage - Repair harness and replace fuses
1
Check for battery voltage at terminal-wire (L/R) of door
lock switch connector NG
Repair harness (Fuse box-Door lock switch)
1 OK
Check terminal voltage above connector with switch
each condition
Locked
Unlocked (G/R) wire
Va
ov (G/O) wire
ov
VB
1 OK
Check door lock switch (Refer to page S-26)
Disconnect door lock timer and relay connector:
check for battery voltage at terminal-wire (W/G) NO
- Repair harness (Fuse box-Door lock timer and relay) OK
Check terminal voltage above connector with switch
each condition
Lot ked
Unlocked
VB
ov (G/O) wire
ov
VB
1 OK
NO
Repair harness =
(Door lock switch-Door lock timer and relay)
1
Check for continuity of above connector terminal-wire
(B) to ground Repair harness (Door lock timer and relay-Ground)
I OK
Connect battery voltage to terminal-wire (G) and ground
terminal-wire (R) of door lock timer and relay; check that NGT Broken harness (Door lock timer and relay-Door lock
doors lock control) or defective door lock control
Reverse above connection; check that doors unlock (Refer to inspection; page S-26)
I OK F Check door lock timer and relay (Refer to page S-26)
23uosx-007 One door lock does not operate
t
Check door lock control (Refe Replace door lock control (Refer to pages S-13, 14, 19)
I OK __ Repair harness
- (Door lock timer and relay-Door lock control)
03uosx-030
s-25

POWER WINDOW SYSTEM
II
Power window (except driver side) cannot be
operated by main switch
t
Turn ignition switch ON Note l Use only main switch during checking operation.
t
Check for battery voltage at terminal-wires of main
power window switch connector
Switch Condition
Passenger UP
side
DOWN
Rear (LH) . UP
DOWN
Rear (RH) UP
DOWN Terminal Voltage
(G/W) wire Ve
(R/W) wire VB
(G/Y) wire VB
(W/R) wire VB
(L/W) wire VB
(Y/W) wire Ve
I OK
Check for battery voltage at terminal-wires of power
window sub-switch connector while operating main
switch
VB: Battery voltage
NO
- Check main power window switch (Refer to page S-31) NG
___) Repair harness
(Main power window switch-Power window sub-switch)
I OK
Check for battery voltage at terminal-wires of power
window sub-switch connector while operating main
switch
Condition Terminal
UP (R) wire VB
DOWN (G) wire VB
I Check power window sub-switch (Refer to page S-32)
1 OK
Check for battery voltage at terminal wires of power
window motor connector while operating main switch
Condition Terminal Voltage
UP (R) wire
DOWN (G) wire OK
Check power window motor (Refer to page S-32) I 23uosx-012
s-30

S MOLDING, PROTECTOR, GARNISH
I 03UOSX-06
PRIMER 9
I
I 03uosx-070
BONDING AGENT
DOUBLE-SIDED ADHESIVE TAPE
03uosx-071
Installation Note
Protector
1. Use a knife to remove the adhesive remaining on the body
and protector.
Note
l Remove as much adhesive as possible without
damaging the painted surface.
l If the adhesive is difficult to remove, soften it with
a hot air blower.
2. Remove any grease or dirt from the protector and body
adhesion surface.
3. Apply primer to the protector as shown.
4. Attach double-sided adhesive tape to the protector (when
reused).
5. Apply adhesive (polyurethane) to the protector as shown.
6. Mark the installation position on the body with masking tape.
7. Align the protector on the body and attach it securely.
Note
l Adhesion conditions deteriorate if air temperature
is below 20°C (66OF); heating of the body is recom-
mended.
I 03UOSX-072
s-50

FUSE AND JOINT BOX
FUSES
Specifications
Main fuse block
Fuse Color
FUEL INJ 30A Pink
HEAD 30A Pink
MAIN 80A Black
BTN 60A Green
AD FAN 30A Pink
ST SIG 10A Red
ELEC FAN 30A Pink Protected circuit
EGI system
Headlight
Cooling fan, Power window, Sunroof, Wiper and washer, Air conditioner
Door lock, Charging system
Additional cooling fan
Fuel pump
Cooling fan
Fuse box
23UOTX-001
Specifications
Fuse
REAR WIPER 10A
HAZARD 15A
ROOM IOA
ENGINE 15A
RADIO 15A
DOOR LOCK 30A
BELT 30A
POWER WINDOW 30A Color
Red
Blue
Red
Blue
Blue
Green
Green
Green Protected circuit
Rear wiper and washer
Hazard warning
Clock, interior lamp, Cargo compartment lamp, Trunk compartment lamp
Alternator
Audio
Power door lock
Passive shoulder belt
Power window
1
T-13

INTERIOR LAMP SYSTEM T
IG key illumination does not operate
Check room IOA fuse NG
- Short circuit
0 OK
Confirm battery voltage on V Defective harness (Fuse - Joint box), or bulb
0 OK
Confirm continuity on B wire of the joint box (CPU) to
ground Repair harness (Joint box - Body ground)
OK
When any door is opened, confirm that interior lamp
comes on
OK NG
~ Defective harness (Joint box - Door switch), or door
switch
Confirm continuity between N terminal of JB-09 connec- _ NG
-
tor and B terminal of JB-03 connector Repair harness (JB-09 - JB-03)
I OK
Replace CPU
23UOTX-029
Inspection
Door switch (Front sides with passive belt)
Confirm continuity between the R/W wire and the B wire of
the door switch connector (in passive motor connector).
Condition Continuity
Push X
Not push 0
0: Indicates continuity X: No continuity
03UOTX-181 Door switch (Others)
Confirm for continuity between the terminals of the door switch.
Condition Continuity
Push X
Not push 0
0: Indicates continuity X: No continuity
1 I OSJOTX-082
T-51

INSTRUMENT CLUSTER T
Symptom: Water temperature gauge does not operate.
9MUOTX-072
W/ TACHO W/O TACHO
OSUOTX-111
0
23UOTX-041
WI TACHO
W/O TACHO
9MUOTX-076
Step 1
1. Disconnect the connector from the water thermosensor.
2. Connect the red lead of the
SST to the connector and the
black lead to a body ground.
3. Set the
SST to the resistance values shown in the figure.
4. Turn the ignition switch ON, and check that the needle in-
dicates the correct values.
Gauge displays correct Action
Yes Replace water therm0 sensor
No Go to Step 2
Caution
l Continue the above checks for at least two minutes
each to correctly judge the condition.
l The allowable indication error is twice the width of
the needle.
Step 2
1. Remove the instrument cluster. (Refer to page T-69.)
2. Apply battery voltage to terminal 2L and ground terminal 2E.
3. Connect the red lead of the
SST to terminal 3L and the black
lead to a negative battery terminal.
4. Set the
SST to the resistance values shown in the figure.
5. Verify that the needle indicates the correct values.
Indicates correct
Yes Action
Repair wiring harness
(instrument cluster - Water thermosensor)
I--~ No I ReDlace water temperature gauge
I
Caution
l Continue the above checks for at least two minutes
each to correctly judge the condition.
l The allowable indication error is twice the width of
the needle.
T-67

T INSTRUMENT CLUSTER
Symptom: Fuel gauge does not operate.
SMUOTX-077 -_d
,
1
OBUOTX-186
W/ TACHO W/O TACHO
7R 7cl
9MUOTX-079
23UOTX-04:
WI TACHO W/O TACHO
7Q 7cl
Step 1
1. Disconnect the connector from the fuel gauge sender unit.
2. Connect the red lead of the SST to the terminal-wire (Y) and
the black lead to a body ground.
3. Set the SST to the resistance values shown in the figure.
4. Turn the ignition switch ON, and verify that the needle indi-
cates the correct values.
Indicates correct Action
Yes Replace fuel gauge sender unit (in fuel tank)
/
No Go
to Step 2
Caution
l Continue the above checks for at least two minutes
each to correctly judge the condition.
l The allowable indication error is twice the width of
the needle.
Step 2
1. Remove the instrument cluster. (Refer to page T-69.)
2. Apply battery voltage to terminal 2L and ground terminal 2E.
3. Connect the red lead of the SST to terminal 1C and the
black lead to a negative battery terminal.
4. Set the SST to the resistance values shown in the figure.
5. Verify that the needle indicates the correct values.
Indicates correct Action
Yes Repair wiring harness
(Instrument cluster - fuel gauge sender unit)
No Replace fuel gauge sender unit
Caution
. Continue the above checks for at least two minutes
each to correctly judge the condition.
l The allowable indication error is twice the width of
the needle. .-/

CRUISE CONTROL SYSTEM T
L 23UOTX-05
Condition Code Numbers
Self-diagnosis of malfunction
The test light will flash if a malfunction is present.
Inspection Procedure
Self-diagnosis of malfunction
1. Locate the cruise control connector.
2. Connect a 1.4W test light between terminals f and d, with
connector attached to control unit.
Note
l There is no wire in terminal d of the connector. Push
the test light through the connector and touch the
corresponding pin on the control unit.
3. Turn the ignition switch to ON.
4. Turn the cruise control on by pressing the MAIN switch. (The
MAIN indicator lamp will come ON.)
5. Press and hold the RESUMElACCEL switch for more than
three second.
6. The test light will illuminate for 3 seconds and go out for
2 seconds.
7. The self-diagnostic system is activated and the test light will
flash if a problem is present.
8. Make note of the condition code number(s).
(Refer to the chart at the bottom of the page).
9. After retrieving the code(s), drive the vehicle at more than
16 km/h (lOmph), or press the MAIN switch to deactivate
self-diagnosis. (The MAIN indicator lamp will go OFF.)
Note
l The cruise control system will not operate when in
the self-diagnosis mode.
Pattern of output signal
(Test light)
ON
OFF ON
GFF
,“r,- ON
OFF Note
23UOTX-05
l
If there is more than one malfunction, the code numbers will be indicated in numerical order.
T-81 Code
No.
01
05 Possible Cause Action
Defective wiring (Actuator-Cruise control
unit, Stoplight switch-Cruise control unit)
Defective actuator
Defective stoplight switch (For cruise)
STOP fuse blown
Defective wiring (Fuse - Cruise control
unit)
Both stoplight switches (for vehicle and
cruise) are ON simultaneously
Defective SET/COAST. or RESUME/ Inspect cruise control switch
ACCEL switch (Refer to page T-21)
Defective cruise control unit Repair harness
Inspect actuator
(Refer to page T-87)
Inspect stoplight switch
(Refer to page T-87)
Replace fuse
Repair harness
Inspect stoplight switches
(Refer to pages T-47 and
T-87)
Go to troubleshooting
(Refer to page T-83)

AUDIO
Noise
1 YES
I
Verify that mounting screws ar Tighten screws
1 YES
Is there still noise when anten
I Replace antenna YES
Is wiring in good condition? Repair wiring
I YES
Verify proper grounding Repair ground
I I YES
Check for outside noise (Refer to page T-96)
23UOTX-066 Scan or turning does not stop
Install properly
inspect antenna (Refer to p
, YES
Replace audio assembly
23UOTX-069
T-95

U
HEATER AND
AIR CONDITIONER SYSTEMS
INDEX ...................................................... u- 2
HEATER ................................................
AIR CONDITIONER ................................. ;r ;
TROUBLESHOOTING GUIDE.. .................... U- 4
CIRCUIT DIAGRAM ................................. u- 4
ELECTRICAL TROUBLESHOOTING TOOLS. U- 5
HEATER ................................................... u-20
STRUCTURAL VIEW ................................ u-20
HEATER UNIT ........................................ u-21
BLOWER UNIT ....................................... U-23
HEATER CONTROL UNIT.. ....................... U-26
AIR CONDITIONER .................................... u-30
STRUCTURAL VIEW ................................ u-30
REFRIGERANT SYSTEM ........................... u-31
COOLING UNIT ...................................... U-38
COMPRESSOR ....................................... u-41
MAGNETIC CLUTCH ............................... u-51
RECEIVER/DRIER .................................... U-52
CONDENSER ......................................... u-53
REFRIGERANT LINES .............................. u-54
REFRIGERANT PRESSURE SWITCH No.1.. . U-55
REFRIGERANT PRESSURE SWITCH No.2.. . U-55
A/C RELAY ............................................ U-56
CONDENSER FAN RELAY.. ......................
CONDENSER FAN .................................. z-f;
-
A/C SWITCH .......................................... u-57
23UOUX-001