1992 MAZDA PROTEGE lock

REAR WINDOW DEFROSTER T
TROUBLESHOOTING
Circuit Diagram
. .-
m DIGITAL CLOCK WXGARETTE LIGHTER I-l
f$pjg
MAIN
BOA BTN
60A v v
0. o! B (E)
l- IX-0 lJ
Ix-u REAR WINDOW DEFROSTER SWITCH TI LUMINATION LAMP: REFER TO JB-05 a
CTION I-4
I nnnt.,4
.L (F)
SE
JB-02LJ:t=;GJB-06
a3 ,, ,, @
I \\- //
B/W (I)
ET?-- (F)
5 JB-06 @
RADIO
15A
JB-02 0
1 ,“Yll IOA
JB-02 0
REAR WINDOW
m&R;~TER I
4 JB-02 @+ PRTEGE i
IV
tr I
I+ LA.“, I I\-1 I
I - -
_--___---
_._- ------
I 2s 1 w
rzlznl+ I I (3
I I -. .--. .- tNGlNt CONTROL UNIT
(SECTION
B-;c. 2b)
REAR WINDOW
DEFROSTER
PRO,TEGE ,/ ILLUMINATION
LAMPS
(SECTION I-4)
‘-01
REAR WINDOW I-02 REAR WINDOW I-03 CIGARETTE
jEFROSTER SWITCH (1)
* B/L R/B
B B/W R
03UOTX-124
T-75

U TROU6LESHOOTlNG GUIDE
Case 4 Moisture in system
Measured pressure
Low-pressure: 50 cmHg (2.0 inHg): [Vacuum1
High-pressure: 667-l ,472 kPa (7-15 kg/cm , loo-213 psi)
Condition
Intermittent cooling
(Moisture in refrigeration system freezes in expansion valve and causes temporary blocking.
After time, ice melts and condition returns to normal.)
SMUOUX-088
CAUSE ACTION
7 r
MOISTURE
IN SYSTEM WW;MTE
-
23uoux-O!
Case 5 No refrigerant circulation
Measurement pressure
Low-pressure: 76 cmHg (3.0 inHg) [Vacuum]
High-pressure: Below 589 kPa (6 kg/cm’, 85 psi)
Condition
Refrigerant flow obstructed by moisture or dirt, causing freezing or blockage of expansion valve
9MUOUX.090
Step 1
Discharge the refrigeration system, (Refer to page U-32.)
Step 2
Evacuate the system to remove all air and moisture from it.
$?&$r:o page U-32.)
Charge the system with refrigerant. (Refer to page U-33.)
Step 4
After charging, measure the refrigerant pressure.
(Refer to page U-37.)
Step 5
If the low- and high-pressure sides are still too high, replace
the receiver/drier.
CAUSE ACTION
f r^‘---7
MOISTURE
Id EVACUATE
IN SYSTEM SYSTEM
I I
05UOUX-02
CAUSE ACTION
23UOUX-OE
Step 1
Turn the air conditioner OFF for about 10 minutes. Turn the
air conditioner ON to determine whether the blockage is due
to moisture or dirt.
a) If caused by moisture
System will operate normally after being OFF for 10 minutes.
(Ice melts and relieves blockage.)
Refer to “Moisture in system”.
b) If caused by dirt
System remains abnormal after being OFF 10 minutes.
Go to Step 2.
Step 2
1. Remove the expansion valve. (Refer to page U-39.)
2. Blow out the dirt with compressed air.
3. If unable to remove the dirt, replace the expansion valve.
4. Evacuate, charge, and test the system.
U-18

HEATER U
HEATER UNIT
Removal / Installation
1. Drain the engine coolant.
2. Remove the dashboard. (Refer to Section S.)
3. Remove as shown in the figure.
4. Install in the reverse order of removal
Note
l When disconnecting the heater hose from the heater core, unlock the hose connector at the
heater core side.
l When installing the heater hose on the heater core, verify that the hose connector is securely
locked.
l Release the clamp, and remove the seal plate together with the heater unit.
1. Seal plate 3. Heater hose
2. Hose connector
4. Heater unit
u-21

AIR CONDITIONER U
REFRIGERANT SYSTEM
Safety Precaution
1. R-12 liquid refrigerant is highly volatile. A drop of it on the
skin could result in localized frostbite. When handling the
refrigerant, be sure to wear gloves.
2. If the refrigerant splashes into the eyes, wash them with clean
water immediately. Always wear goggles or glasses to pro-
tect the eyes.
9MUOUX-125 3. The R-12 container is a highly pressurized vessel.
Never subject it to high heat, and be sure that the temper-
ature where it is stored is below 52OC
(125.6OF).
4. A halide leak detector is often used to check the system
for refrigerant leakage. R-l 2, upon coming into contact with
the flame, produces phosgene, a toxic gas. Always provide
adequate ventilation.
o3uoux-11 4
9MUOUX-12
Refrigerant System Service Basics
Refrigerant container service valve
1. Turn the handle fully counterclockwise before connecting
the valve to the refrigerant container.
2. Turn the outlet valve counterclockwise until it reaches its
highest position.
3. Turn the outlet valve fully clockwise by hand. Connect the
center hose to the valve fitting.
4. Turn the handle clockwise to puncture the sealed can.
5. Turn the handle fully counterclockwise to fill the center hose.
Do not open the high- or low-pressure manual valves.
6. Loosen the hose nut connected to the center fitting of the
manifold gauge. Allow air to escape. Then retighten the nut.
13uoux-012
u-31

CHARGING HOSE
CLOSED
CLOSED
23UOUX-061
CHARGING HOSE
CHARGING VALVE CLOSED 0
23UOUX.061
3. Connect high-and low-pressure side charging hoses and
stop valves to the refrigerant system service valves.
23UOUX-062
FREON (REFRIGERANT RECOVERY
ND RECYCLING
CONTAINER
VALVE
Manifold gauge set/Stop valve installation
Caution
l Connect all charging hoses via stop valves to avoid
venting the refrigerant remaining in the hoses into
the atomosphere. _A
l Do not disconnect the stop valve from the charg-
ing hose when there is refrigerant remaining in the
hose.
1. Turn the knob counterclockwise to close the stop valve.
2. Install the stop valve to the end of the charging hose of the
manifold gauge set.
Caution
l Verify that high-and low-pressure side valves of the
manifold gauge set are fully closed before connect-
ing the charging hose and stop valve to the refriger-
ant system service valve.
23UOUX-063 Evacuation/Airtiahtness test
1. Connect the manifold gauge set and stop valves to the
refrigerant system service valves.
2. Connect the center hose of the manifold gauge set to the
vacuum pump inlet.
3. Prepare as follows according to the charging method.
Charging from service container.
Connect the charging hose and service container valve to the
manifold gauge set air purge valve.
I
23UOUX-06
U-32
4
Refrigerant recovery operation.
Remove the refrigerant from the refrigerant system by using
a freon (refrigerant) recovery and recycling system.
Caution
. Never vent the refrigerant into the atomosphere.
l When using a freon recovery and recycling system,
follow the operation instructions provided by the
equipment manufacturer.
_-,

U AIR CONDITIONER
OFF
03UOUX-06
03UOUX-06,
03UOUX-06
On-vehicle Inspection
Thermoswitch
1. Remove the glove box.
2. Run the engine at idle.
3. Turn OFF the A/C switch and set the blower switch to the
highest position to operate the blower fan for a few minutes.
4. After a few minutes, turn OFF the blower switch and stop
the engine.
5. Disconnect the thermoswitch connector and check for con-
tinuity between terminals of the switch.
Terminals Continuity
a-b Yes
6. If not as specified, replace the thermoswitch.
Note
l The thermoswitch contacts will be open if the
evaporator temperature is below 0.4 f 0.7OC (32.7
z!z 1.3OF).
Inspection
Thermoswitch
1. Immerse the sensing bulb in a container of ice water.
2. Check continuity between terminals of the switch as
specified.
Terminals
a-b Temperature Continuity
Above 5°C Yes
Below 0% No
3. If not as specified, replace the thermoswitch
Evaporator
1. Check the evaporator fins for blockage. If the fins are
clogged, clean them with compressed air.
Caution
l Never use water to clean the evaporator.
2. Check the fittings for cracks and other damage.
Replace the evaporator if necessary.
u-40

AIR CONDITIONER U
r 23UOUX-036
L 23UOUX.03
I
L
23UOUX-03 7
Shaft Seal Replacement
1. Remove the armature plate.
Note
l Removal of the clutch pulley and coil is not
necessary.
2. Remove the felt seal and snap ring.
3. Remove the shim(s).
4. Insert the
SST into the compressor aligning the cutout of
the
SST with the groove of the seal plate.
5. Rotate the
SST counterclockwise to make sure that the
cutout is engaged with the seal plate.
6. Pull out the seal plate.
7. Insert the
SST into the compressor aligning the cutout of
the
SST with the metal pawl of the shaft seal.
8. Rotate the
SST counterclockwise to make sure that the cut-
off is engaged with the metal pawl.
9. Pull out the shaft seal.
u-47

TECHNICAL DATA TD
Item Engine
B6 SOHC BP SOHC
Valve seat
IN
45O
Seat angle
EX 45O
Seat contact width IN
mm 04 EX 1.1-l .7 (0.043-0.067) 0.8-l .4 (0.031-0.055)
1.1-l .7 (0.043-0.067) 0.8-l .4 (0.031-0.055)
IN Standard 39 (1.5354) 42.5 (1.673)
Seat sinking mm (in) Maximum 40.5 (1.594) 44.0 (1.732)
EX Standard 39 (1.5354) 41.0 (1.614)
Maximum 40.5 (1.594) 42.5 (1.673) Valve spring
Standard mm (in) 43.66 (1.7188) 46.12 (1.8157)
IN
Minimum N (kg, Ib)/mm (in) 224-253 (22.8-25.8, 205-231 (20.9-4X3.5,
Free length 50--57)/35.5 (1.398) 46-52)/39 (1.535)
Standard mm (in) 43.66 (1.7188) 43.61 (1.7169)
EX
Minimum N (kg, Ib)/mm (in) 224-253 (22.8-25.8, 129-147 (13.1-15.0,
50-57)/35.5 (1.398) 29-33)/37.5 (1.476)
Out-of-square mm (in) 1 Maximum 1.52 (0.060) IN...l.61 (0.063) EX...1.52 (0.060)
Lobe height mm (in) IN
EX Standard 36.451 (1.4351) 35.993 (1.4170)
Wear limit 36.251 (1.4272) 35.793 (1.4092)
Standard 36.451 (1.4351) 36.273 (1.4281)
Wear limit 36.251 (1.4272) 36.073 (1.4202)
Front 43.440-43 ,460 No.1 & 43.440-43.460
(1.7102-l .7 ‘110) No.5 (1.7102-1.7110)
43.430-43 ,445 No.2 & 43.425-43.450
mm (in) Center
(1.7098-l .7 ‘108) No.4 (1.7096-l .7106)
. , L
Rear 43.440-43.460 No’3 43.41 o-43.435
(1.7102-l .7110) (1.7091-1.7100)
1 Out-of-round 0.05 (0.002) max.
Front 0.055-0.095 No.1 & 0.040-0.075
(0.0021-0.0037) No.5 (0.0016-0.0030)
e--I-.. 0.060-O. 105 No.2 84 0.035-0.080
1041) No.4
“.“-.-..“” (O.OOi 4-0.0031)
Rear 0.055-0.095 0.050-0.095
(0.0021-0.0037) No.3
(0.0020-0.0037)
1 Maximum
0.15 (0.006)
0.01 (0.0004)
0.03 (0.0012)
0.05-0.18 (0.0020-0.0071) 0.06-0.19 (0.0024-0.0075)
n ‘1 m *no Journal diameter
Camshaft hearinn nil cIewanr.F? mm tin I b,er’Ler I (0.0023--0.c
Camshaft runout mm (in) Maximum
Camshaft end play mm (in) Standard
Maximum
I Rocker arm and rocker arm shaft
Rocker arm inner diameter mm (in) 18.000-18.027 (
Rocker arm shaft diameter mm (in)
17 9.59-17 981) I “.L ~“.““O,
lN...19.000--19.027 (0.7480-0.7491)
o.7087-o’70g7) EX...19.000-19.033 (0.7480-0.7493)
I .““” -- -
0 7070-0.7079) 18.959-18.980 (0.7464-0.7472)
lN...0.020-0.068 (0.0008-0.0027)
Rnrkx arm tn shaft clearance
mm (in Standard
I .Y”,.VG 11.,, .” -,,-.. “,“-.“, .I”
““” ,“‘I o.020-o.068 (“~ooo8-o~oo27) EX...O.020-0.074 (0.0008-0.0029)
Maximum 0.10 (0.004) Cylinder block
Height mm (in) 221.5 (8.720)
Distortion mm (in) 0.15 (0.006) max.
Grinding mm (in) 0.20 (0.008) max.
^. , ,
78.006-78.013 (3.0711-3.0714) 183.006-83.013 (3.2679-3.2682)
-.n nr,. -,n fin,% ,n nnnr
” nn’n’ ’ “- T)cc 83.263 (3.2778-3.2781) Cylinder bore diameter stanaara size
mm (in) 0.25 (0.010) oversize IU.L3cl-/U.dDJ (J.uouu-J.uo IL) 1 OJ.LJU--
0.50 (0.020) oversize 78.506-78.513 (3.0908-3.0911) ) 83.506-
Cylinder bore taper and out-of-round mm (in) 0.019 (0.0007) ma: 83.513 i3.2876-3.2879)
I(.
TD-3