1992 MAZDA PROTEGE wiring

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 I
TROUBLESHOOTING GUIDE
General Note
Troubleshooting and inspection of the cruise control is done in two steps. First is the quick, self-diagnostic
inspection using the built-in self-diagnostic function, cruise control switch, and test light. The other is a detailed
inspection of parts using a voltmeter and an ohmmeter.
OSUOTX-130
23UOTX-049
I
L I
23UOTX-050
I db 1
23UOTX-051
I
Step 1: Self-diagnostic Inspection
(Self-diagnosis of malfunction)
Check for condition code(s) memorized in the cruise control
unit by using the cruise control switch and test light.
(Refer to page T-81 .)
If no condition code exists, go to Step 2.
If a condition code(s) is indicated, go to Step 3.
Step 2: Self-diagnostic Inspection
(Quick inspection of cruise control system)
Verify operation codes by using the cruise control switch and
test light. (Refer to page T-82.)
If the operation code is correctly indicated, the part under in-
spection is OK.
If an operation code is not indicated, go to Step 3.
Step 3: Inspection of Circuit and Parts
Check the cruise control wiring and parts with a voltmeter and
an ohmmeter. (Refer to page T-86.)
Adjustment
Checking free play of actuator inner cable
Remove the clip and adjust the nut so that the actuator con-
trol cable play is as follows when the cable is pressed lightly.
Free play of actuator inner cable:
l--5mm (0.039-0.197 in)
T-79

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

AUDIO T
Noise Suppression Chart
Cause
‘uel pump noise Remedy Move speaker wiring away from fuel pump wire.
REAR HARNESS FUEL
PUMP
Wotor noise
Wiper, washer, power
window, for example) 1. Check grounding.
2. Install condensers to motor circuit.
Turn signal noise Connect condenser (0.5 pF) to power line of filter unit. Note
CONDENSER
4lternator noise
l Condenser should be placed near flasher unit.
Connect condenser (0.5 pF) near alternator.
TO RADIO
CONDENSER
97UOTX-1
T-97

TROUBLESHOOTING GUIDE
Symptom: Condenser fan and magnetic clutch do not operate.
03uoux-023
r
3EAR WIPER 10A OA
L
03uoux-02.
I
1 Step 1 Check fuses
1. Check the following fuses.
Fuse Amperage Location
AD FAN 20A In main fuse box
REAR WIPER 10A In fuse box
2. If the fuse is burned, check for a short-circuit in the wiring
harness before replacing it.
3. If the fuses are OK, go to Step 2.
I
23uoux-011
Step 2 Measure voltage at A/C relay connector
1. Run the engine at idle.
2. Turn the A/C and blower switches ON.
3. Measure the voltage at the following terminal wires of the
A/C relay connector. VEX Battery voltage
,
Wire
0-Q
W) Voltage Action
VB Next check wire (L/Y)
ov Repair wire (L/G)
V0 Next check wire (B/L)
ov
VB
ov
VB
ov Repair wire (L/Y)
Repair wire (B/L)
Next check wire (LIB)
Go to Step 3
Replace A/C relay
Step 3 Measure voltage at A/C switch
Measure the voltage at the following terminal wires of the A/C
switch connectors.
VB: Battery voltage
Step 4 Measure voltage at thermoswitch
Measure the voltage at the terminal wires of the thermoswitch
connector.
VB: Battery voltage
Wire
(G/R)
WB)
Voltage
VB
ov
VB
OV
Action
Repair wire (G/R)
Next check wire (G/B)
Go to Step 5
Check ECU ooeration
1 -. [ Refer to Secti6n F
u-12

1992
Mazda
323
Protege
Wiring
Diagram
FOREWORD
This wiring diagram incorporates the wiring schematic
in the basic vehicle and available optional equipment.
Actual vehicle wiring may vary slightly depending
upon optional equipment and/or focal specifications.
All information contained in this booklet is based on
the information available at the time of printing,
Mazda Motor Corporation reserves the right to make
changes without previous notice.
Mazda Motor Corporation
HIROSHIMA, JAPAN
APPLICATION:
This manual is applicable to vehicles beginning with
the Vehicle Identification Numbers(VIN) shown on
the following page.
z CONTENTS
o 1991 Mazda Motor Corporation
PRINTED IN USA, JUL. ‘91
5209-l O-91 F
E (9999-95-0196-92)