sensor MAZDA PROTEGE 1992 Manual PDF

PASSIVE SHOULDER BELT SYSTEM S
DOOR CATCH SWITCH (in front door lock assembly)
Inspection
1. Disconnect the door catch switch connector.
2. Check for continuity between the terminals with an
ohmmeter.
031JOSX- 19
mm (in) Release
( +<>: lndtcates continuity
LIMIT SWITCH (FRONT/REAR)
Inspection
1. Disconnect the passive shoulder belt and front limit switch
connectors.
2. Position the shoulder belt buckle forward and rearward as
shown with the emergency handle.
3. Check for continuity between the limit switch terminals with
an ohmmeter.
Note
l Verify that the shoulder belt buckle is fully in the
front/rear lock position when checking.
Limit switch
Front
Rear
Buckle posItIon a b f h
Released (Front)
0 0
O---G Indicates continuity
4. If not as specified, replace the passive shoulder belt.
WARNING SWITCH (in passive shoulder belt retractor)
Inspection
1. Disconnect the warning switch connector.
2. Check for continuity between terminals when the lap belt
is pulled out/released.
Lap belt condition R.H. side
L.H. side
a b C d
I
Pulled (more than 80 cm (31.50 in) 1 0
Released
C&---i). Indicates continuity
SPEED SENSOR
Inspection
1. Remove the instrument cluster. (Refer to Section T.)
2. Check for continuity between terminals A and F while rotat-
ing the speedometer cable shaft.
3. If there are not four pulses per shaft rotation, replace the
speedometer. (Refer to Section T.)
S-l 07

BODY ELECTRICAL SYSTEM
INDEX .......................................... T- 2
RELAY ....................................... T- 2
INSTRUMENT CLUSTER AND
SWITCHES ................................ T- 3
EXTERIOR LIGHTS.. ..................... T- 4
INTERIOR LAMPS.. ...................... T- 5
CRUISE CONTROL SYSTEM.. ........ T- 6
AUDIO ....................................... T- 7
OTHER ...................................... T- 8
OUTLINE ...................................... T- 9
HOW TO USE THIS SECTION.. ...... T- 9
ELECTRICAL TROUBLESHOOTING
TOOLS .....................................
ELECTRICAL SYMBOLS - ............... T- 1x
TROUBLESHOOTING GUIDE.. .........
T- 11
FUSE AND JOINT BOX ..................
T- 12
STRUCTURAL VIEW.. ...................
T- 12
FUSES ....................................... T- 13
CIRCUIT BREAKER.. ....................
T- 14
JOINT BOX ................................. T- 15
RELAY .......................................... T- 16
STRUCTURAL VIEW.. ...................
T- 16
.-
FLASHER UNIT ........................... T- 17
DOOR LOCK TIMER UNIT ............
T- 17
HORN RELAY ............................. T- 18
HEADLIGHT RELAY.. ................... T- 18
TNS RELAY ................................ T- 18
DRL RELAY (CANADA). ................ T- 18
SWITCHES .................................... T- 19
STRUCTURAL VIEW.. ................... T- 19
SWITCH ..................................... T- 20
COMBINATION SWITCH ...............
T- 23
EXTERIOR LIGHTING SYSTEM ....... T- 29
STRUCTURAL VIEW.. ...................
T- 29
AIMING ...................................... T- 30
TROUBLESHOOTING.. .................
T- 30
HEADLIGHT AND FRONT
COMBINATION LIGHT.. ..............
T- 41
REAR COMBINATION LIGHT.. ....... T- 43
HIGH-MOUNT STOPLIGHT.. .......... T- 45
DRL RESISTOR ........................... T- 46
STOPLIGHT SWITCH.. .................. T- 47
BACK-UP LIGHT SWITCH ............. T- 47
LICENSE PLATE LIGHT.. ..............
T- 47
REAR SIDE MARKER LIGHT ......... T- 48
INTERIOR LAMP SYSTEM ..............
T- 49
STRUCTURAL VIEW.. ...................
T- 49
TROUBLESHOOTING ...................
T- 50 SPOT LAMP
(IN OVERHEAD CONSOLE) ......... T- 52
INTERIOR LAMP
(WITHOUT SUNROOF). ............... T- 52
INTERIOR LAMP (WITH SUNROOF) T- 53
INTERIOR AND SPOT LAMP
(WITHOUT SUNROOF). ............... T- 53
CARGO COMPARTMENT LAMP.. .. T- 54
TRUNK COMPARTMENT LAMP.. ... T- 54
COURTESY LAMP ....................... T- 54
CENTRAL PROCESSING UNIT (CPU) T- 55
SYSTEM DIAGRAM ...................... T- 55
CPU .......................................... T- 56
WARNING SYSTEM.. ...................... T- 58
WARNING BUZZER AND TIMER .... T- 58
WARNING AND INDICATOR LAMP T- 60
INSTRUMENT CLUSTER.. ............... T- 63
PREPARATION ............................ T- 63
STRUCTURAL VIEW ..................... T- 63
TROUBLESHOOTING ................... T- 64
INSTRUMENT CLUSTER
AND SPEEDOMETER CABLE.. .... T- 89
WATER THERMOSENSOR ............ T- 72
FUEL GAUGE SENDER UNIT.. ...... T- 73
REAR WINDOW DEFROSTER.. ........ T- 74
STRUCTURAL VIEW.. ................... T- 74
TROUBLESHOOTING ................... T- 75
FILAMENT .................................. T- 77
REAR WINDOW DEFROSTER
SWITCH .................................... T- 77
CRUISE CONTROL SYSTEM.. ......... T- 78
STRUCTURAL VIEW.. ................... T- 78
TROUBLESHOOTING GUIDE.. ....... T- 79
SELF-DIAGNOSTIC INSPECTION .... T- 80
TROUBLESHOOTING ................... T- 83
CRUISE CONTROL UNIT .............. T- 85
HORN ........................................... T- 88
HORN AND HORN RELAY.. .......... T- 88
AUDIO .......................................... T- 89
STRUCTURAL VIEW.. ................... T- 89
OUTLINE OF AUDIO.. .................. T- 90
SYSTEM ..................................... T- 91
TROUBLESHOOTING ................... T- 92
CAUSES OF NOISE ..................... T- 96
AUDIO COMPONENT.. ................. T- 98
DOOR SPEAKER .........................
REARSPEAKER .......................... ;-
- !3;
ANTENNA FEEDER ..................... T- 99
23UOTX-001

INDEX T
INSTRUMENT CLUSTER AND SWITCHES
23UOTX-00
1. Rear window defroster switch
7. Fuel gauge sender unit
Inspection
........................... page T-21 Removal / Installation ..................
page T-73
2. Remote control door mirror switch
Inspection ................................... page T-73
Inspection
........................... page T-20 8. Hazard warning switch
3. Ignition switch
Removal / installation .................. page T-20
Removal / Installation..
........ page T-20 Inspection ................................... page T-21
Inspection ........................... page
T-2 1 9. Cruise control main switch
4. Combination switch Inspection ...................................
page T-21
Removal / installation
.......... pages T-23, 25 10. Cruise control switch
Disassembly / Assembly ..... pages T-24, 26 Removal / Installation ..................
page T-20
Inspection
........................... pages T-27, 28 Inspection ................................... page T-21
5. Instrument cluster 11. Power window main switch
Troubleshooting..
................ page T-65 Inspection ................................... page T-22
Removal / Installation
.......... page T-69 12. Power window switch
Disassembly I Assembly ..... page T-70 Inspection ................................... page T-22
Inspection
........................... page T-71 13. Panel lamp control switch
6. Water thermosensor
Inspection ................................... page T-22
Removal / Installation..
........ page T-72
Inspection ........................... page T-72
T-3

T INDEX
CRUISE CONTROL SYSTEM
23UOTX-004
1. Cruise control switch
Removal / Installation . . . . . . . . . . . . . . . . . . page T-20
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-21
2. Speed sensor (in the meter)
Inspection ,,,,..~..,,,..,,,.,........,.,..,.. page T-72
3. Actuator
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-87
4. Cruise control unit
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . page T-83
Removal / Installation . . . . . . . . . . . . . . . . . . page T-85
Self-diagnostic inspection . . . . . . . . . . . page T-80
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-86 5. Stoplight switch
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . pages T-47, 87
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . page T-87
6. Clutch switch (For MTX)
Adjustment ..,,....,...,..,..,,....., page T-87
7. Cruise control main switch
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-21
T-6

2L BUZZER 2A 28 2C 20 1A 3K - - -
n n n n n
nn
1 1
1
BELTS
OIL
3w
3W
u u uuu u u u u
L-l u u u u
1C 3L 2E 2G 11
1G 1F 1D 1B
3F 38 3G 1E 30
n II 11 l-l l-l It 11 l-l
1J 11 1H 1G IF 1E 1D lG 1B 1A 2L 2K 2J 21 2H 2G 2F 2E 20 2G 28 2A
n Ir ,I
3L 3K 3J 31 3i-l 3G 3F 3E 3,, 3~ 3B 3A
Ter-
minal Connected to
tA Combination switch
1B Ground
1C Fuel tank unit
ID EGI control unit
1E Washer level sensor
1F Fuel tank unit
1G EC-AT control unit
1H EC-AT control unit
II
1J I Connected to Ter-
minal
2A Speed sensor output
28 Light switch (high beam)
2C Turn switch (L1

WARNING SYSTEM T
13UOTX-07
63U15X-05
, I//
‘nF -
-
-
FUEL
13UOTX.08C
- CHARGE
13UOTX-08
13UOTX-08
Inspection
Brake system warning lamp
1. Disconnect the connector from the brake fluid level sensor.
2. Connect a jumper wire between “G/Y” and “6” terminal
(body ground).
3. Start the engine and check that the BRAKE warning lamp
illuminates.
Caution
l Be sure that the parking brake is fully released be-
fore checking.
4. If there is no illumination, check the fuse, bulb, and wiring
harness.
Brake fluid level sensor
Connect an ohmmeter to each terminal of the brake fluid lev-
el sensor connector.
Check for continuity when the float is moved up and down.
The sensor is good if there is continuity when the float is be-
low the “MIN” mark, and if there is no continuity when the
float is above the “MAX” mark. If the sensor does not pass
this test, replace it.
Fuel-level warning lamp
1. Disconnect the connector from the fuel tank unit.
2. Connect the connector terminal “W/R” to the body ground.
3. Start the engine and check that the FUEL warning lamp il-
luminates.
4. If there is no illumination, check the fuse, warning lamp, and
wiring harness.
Alternator warning lamp
1. Start the engine, connect the connector terminal “W/B” to
a body ground.
2. Check that the alternator warning lamp illuminates.
3. If there is no illumination, check the warning lamps, wiring
harness and alternator. Replace or repair as necessary.
Engine oil pressure warning lamp
1. Disconnect the connector from the oil pressure switch.
2. Start the engine and connect the connector terminal “Y/R”
to a body ground.
3. Check that the “OIL” warning lamp illuminates. If it does
not, replace the sender switch or repair the wiring harness
if bulb is not burnt out.
T-61

T
I WARNING SYSTEM
Washer fluid warning lamp
1. Disconnect the connector from the washer fluid level sensor.
2. Start the engine and with a jumper wire to connect the con-
nector terminal “a” (LGIW) to a body ground.
3. Check that the washer fluid warning lamp illuminates.
If it does not and the bulb is not burnt out, replace the fluid
level sensor or repair the wiring harness.
13UOTX-08
_-
1 /
J TERMINAL -
13UOTX-08
13UOTX-08
Seat belt warning lamp
1, Remove the CPU.
2. Connect the connector J terminal (joint box side) to a body
ground.
3. Turn ignition switch to ON and confirm that BELT warning
lamp illuminates for about 6 seconds.
4. If there is no illumination, check the fuse, warning readout
and wiring harness.
Check bulb, CPU and wiring harness and switch, repair or
replace as necessary.
Malfunction indicator lamp
1, Connect the “Y/B” wire to a body ground.
2. Start the engine and check that the warning lamp illuminates.
3. If there is no illumination, check the meter fuse, bulb, and
wiring harness between the instrument cluster and the EGI
control unit.
T-62

2L BUZZER 2A 28 2C 2D 1A 3K l--r nnmn
I I‘ I
1C 3L 2E 2G IL iG 1F 1D tB
3F 38 3G 1E 3D
l-l rt
II l-l
l-l It II l-l 1J 11 1H
1G IF 1E 1D 1C 1B 1A 2L 2K 2J 21 2H 2G 2F 2E 2D 2C 28 2A
r-l It ,I 3L 3K 3J 31 3H 3G 3F 3E 3D 3C 3B 3A
Ter- I I minal Connected to 1 1A Combination switch
1B Ground
IC Fuel tank unit
1 ID 1 EGI control unit
I
II L 1J 1
L Ter-
minal Connected to
2A Speed sensor output
28 Light switch (high beam)
2C Turn switch (L)
20 Turn switch (R)
2E Ground
2F Ground
2L 1 IGI battery Ter-
minal Connected to
3A
38 Alternator
3c
30 Oil pressure switch
3E
3F Parking brake switch, Brake fluid switch
3G Passive shoulder belt control unit
3H h
I 31
3J
3K
IG2 battery
3L Water temperature gauge unit

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
I
23UOTX-045
W/ TACHO WI0 TACHO
QMUOTX-08!
03UOTX- 11,
03UOTX.11
OBUOTX-
T-72
Water temperature gauge
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. Turn the ignition switch ON, and verify that the needle indi-
cates the correct values.
Cautlon
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.
Speed sensor
1. Remove the instrument cluster.
2. Check continuity between terminals 2A and 2F while rotat-
ing the speedometer cable shaft.
3. If there are not four pulses per shaft rotation, replace the
speed sensor.
WATER THERMOSENSOR
Removal / Installation
1. Remove the connector.
2. Remove the thermosensor.
3. Install in the reverse order of removal.
Inspection 1.
Remove the sensor.
2. Place the sensor in water.
3. Heat the water gradually, and check the resistance of the
sensor with an ohmmeter. 4.
If the resistance is not as specified, replace the sensor.
Resistance: 190-2603 at 5O*C (122OF)