1992 MAZDA PROTEGE lights

CONTROL SYSTEM F
Ve: Battery voltage
Incorrect voltage
1, -
Always below l.OV
Always Ve
Always below I.OV (Stoplight OK)
Always below l.OV
Always
VB
Always below 25V (Blower fan OK)
Always
VB (Blower fan OK)
Always below 1 .OV
(Electrical cooling fan OK)
Always below 1 .OV (Blower fan OK)
Always
VB (Blower fan OK)
Always below
1 .ov
Always below l.OV Illumination lamp
ON when rear
window defroster
switch ON
Illumination lamp
never ON
(Headlights OK)
Always below l.OV
Always Ve Possible cause
-
l Throttle sensor misadjustment (Refer to page F-169)
l Short circuit in wiring from throttle sensor to ECU terminal 1N l ECU malfunction
l Throttle sensor misadjustment (Refer to page F-169) l Open circuit in wiring from throttle sensor to ECU terminal IN l Open circuit in wiring from throttle sensor to ECU terminal 2D
l Open circuit in wiring from stoplight switch to ECU terminal 10
l P/S pressure switch malfunction (Refer to page F-173) l Short circuit in wiring from P/S pressure switch to ECU terminal 1P l ECU malfunction
l P/S pressure switch malfunction (Refer to page F-173) l Open circuit in wiring from P/S pressure switch to ECU terminal 1P l Open circuit in wiring from P/S pressure switch to ground
l A/C switch malfunction (Refer to page U-55) l Short circuit in wiring from A/C switch to ECU terminal 10 l Poor connection at ECU connector l ECU malfunction
l A/C switch malfunction (Refer to page U-55) l Open circuit in wiring from A/C switch to ECU terminal 1Q l Open circuit in wirina from A/C switch to blower control switch
l Open or short circuit in wiring from fan relay to ECU terminal 1R l ECU malfunction
l Short circuit in wiring from blower control switch to ECU terminal 1s l Poor connection at ECU connector l ECU malfunction
l Open circuit in wiring from blower control switch to ECU terminal IS
I
l Open or short circuit in wiring from rear window defroster switch to ECU
terminal 1 T
l Open circuit in wiring from ignition switch to rear window defroster switch l Rear window defroster switch malfunction (Refer to page T-21)
l Open or short circuit in wiring from headlight relay to ECU terminal 1U
(Refer to page F-152)
l Neutral switch malfunction (Refer to page F-173) l Clutch switch malfunction (Refer to page F-172) l Short circuit in wirino from ECU terminal IV to neutral or clutch switch
l Neutral switch malfunction (Refer to page F-173) l Clutch switch malfunction (Refer to page F-172) l Open circuit in wiring from ECU terminal 1V to neutral or clutch switch l Poor connection at ECU connector
23UOFX-136
F-l 53

F CONTROL SYSTEM
Terminal voltage (ATX)
VB: Battery voltage
erminal Input Output
Connection to Test condition Correct voltage Remark
IA - -
Battery Constant --- Va For backup
16 0 Main relay
lgnrtion switch OFF ov
(FUEL INJ relay) -
ON Vs
IC 0 Ignition switch While cranking Approx. 1 OV
(START) -
Ignition switch ON
ov
_
ID 0 Self-Diagnosis Test switch at “SELF-TEST” With Self-
Checker Lamp illuminated for 3 sec. after ignition 4.5-5.5v Diagnosis Check-
(Monitor lamp) switch OFF-ON er and System
Lamp not illuminated after 3 sec.
VB Selector
Test switch at “02 MONITOR” at idle
Monitor lamp illuminated 4.5-5.5v
Test switch at
“02 MONITOR” at idle
Monitor lamp not illuminated VB
1E 0 Malfunction indica- Lamp illuminated for 3 sec. after ignition
Below 2.5V With System
tor lamp (MIL) switch OFF+ON Selector test
Lamp not illuminated after 3
sec. VS switch at
“SELF-TEST”
Lamp illuminated Below 2.5V
Lamp not illuminated VR
IF 0 Self-Diagnosis Buzzer sounded for 3 sec. after ignition
Below 2.5V
l With Self-
Checker switch OFF+ON Diagnosis
(Code Number)
Buzzer not sounded after 3 sec.
VB Checker and
Buzzer sounded Below 2.5V System Selector
l With System
Buzzer not sounded
VB Selector test
switch at
“SELF-TEST”
IG 0 Igniter Ignition switch ON ov
-
Idle Approx. 0.2V
1H 0 Headlight switch Headlrghts ON VB
-
Headlights OFF Below 1 .OV
II
0 Diagnosis System Selector test switch at Ignition switch
connector
“02 MONITOR” VE
ON
(TEN terminal)
System Selector test switch at
“SELF-TEST” ov
1J 0 Rear window
defroster switch Rear window defroster switch OFF
Rear window defroster switch ON ov
VB
Ignition switch
- ON
1K 0 Ground (California) Constant ov
Main relay Ignition switch ON VB -
I
3 J
IJ- J-1
u- Fl
IJ -‘--l. r
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32 13x I3v 13~13~l3~13N13~13~13~13~I 3~ 138 ~P)~N)L?L~~J(~H(~F~~D~z!B iv ~IT~IR~IP IN~IL 1 J IIHIIFI ID~IS
F-l 58

CONTROL SYSTEM F
VB: Battery voltage
Incorrect voltage Possible cause
Always OV l ROOM 10A fuse burned l Open circuit in wiring from ROOM 10A fuse to ECU terminal 1A
Always OV
l Main relay malfunction (Refer to page F-171) l Open or short circuit in wiring from main relay to ECU terminal 1B
Always OV (Starter turns)
l Open or short circuit in wiring from or inhibitor switch (ATX) to ECU termi-
nal 1C
Always OV
Always Ve
Always 4.5~5.5U
l Main relay (FUEL INJ relay) malfunction (Refer to page F-171) l Open circuit in wiring from main relay to diagnosis connector terminal +B l Open or short circuit in wiring from diagnosis connector terminal MEN to
ECU terminal 1D
l Poor connection at ECU connector l ECU malfunction
l ECU malfunction
Always below
25v
Always Va MIL always ON
MIL never ON
l Short circuit in wiring from combination meter to ECU terminal 1E l ECU malfunction
l Open circuit in wiring from combination meter to ECU terminal 1E
l Poor connection at ECU connector l ECU malfunction
Always below
2.5V
Always VB No display on Self- * Main relay (FUEL INJ relay) malfunction (Refer to page F-171)
Diagnosis Checker
l Open circuit in wiring from main relay to diagnosis connector terminal +B
“88” displayed and
l Open or short circuit in wiring from diagnosis connector terminal FEN to
buzzer sounds con- ECU terminal 1F
tinuously
l Poor connection at ECU connector l ECU malfunction
Always OV
l Short circuit in wiring from igniter to ECU terminal 1G
Always below 1 .OV (Headlights OK)
l Open or short circuit in wiring from headlight relay to ECU terminal 1H
(Refer to page F-171)
Always OV
Always VB
Always OV Illumination lamp
ON when rear
window defroster
switch ON
Illumination lamp
never ON
Approx. 5V (California)
Always OV (Canada)
l Short circuit in wiring from diagnosis connector terminal TEN to ECU termi-
nal II
l Open circuit in wiring from diagnosis connector terminal TEN to ECU termi-
nal II
l Open circuit in wiring from diagnosis connector terminal GND to ground
l Open or short circuit in wiring from rear window defroster switch to ECU
terminal 1 J
l Open circuit in wiring from ignition switch to rear window defroster switch l Rear window defroster switch malfunction (Refer to page T-21)
l Open circuit in wiring from ECU terminal 1K to ground
l Short circuit in wiring from ECU terminal 1K to main relay (FUEL INJ relay)
23UOFX-14: 2
f-1 59

F CONTROL SYSTEM
srmina
3A
38
3c
3D
3E
3F
3G
3H
31
3J
3K
3L
3M
3N
30
3P
3Q
3R
3s
3T I input Output Connection to
Test condition Correct voltage Remark Battery voltage t
- -
Ground (Injector) Constant OU -
- -
Ground (Output) Constant OU -
- -
Ground (CPU) Constant OU -
- -
- Ground (Input) Constant ov
0 Inhibitor switch
D range VB Ignition switch
(D range) ON
Other ranges ov
0 DRL relay Parking brake pulled with ignition switch
l DRL: Daytime
(Canada) ON (DRL OFF) Va
Running Lights
Idle (DRL ON) Below 2.5V 0
Inhibitor switch
(L range) L range
Other ranges VB
ov Ignition switch
ON
0 Inhibitor switch
(S range) S range
Other ranges Va
ov Ignition switch
ON
_-__. - -. -
0 Solenoid valve Engine speed below 5,000 rpm Below 1.5V WCS: Variable In-
(VICS)
Engine speed above 5,000 rpm VB ertia Charging
System [DOHC]
- - -
- - -
- -
- - -
- - -
- - -
0 Solenoid valve 60 [DOHC]/120 [SOHC] seconds after Below 1.5v
(Pressure regula- engine started when engine coolant tem-
tor) [BP] perature above 90% (194*F) and intake
-
air temperature above 58% (136OF)
[DOHC]/50”C (122“F) [SOHC]
Other condition at idle Va
- - - - - -
- -
-
A- - -
- -
- I -
0 ISC valve Ignition switch ON VS
l Engine signal
Monitor: Green
I I Idle I
Approx. 1 OV and red lamps
flash
I
-
- - - -
-
- - - -
- - - - - -
23UOFX-1’
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U- r, )
IJ- l-1
I 1 r
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I3A 20/2M;2K( 21 12G(2E12C12A 1 U 11 Sll o]lOll MI1 K 1 I (1 G(1 E[ 1
C 11 A
32 13x [ 3V(3~(343~I3N[3~ 3~(3~(3~13~ 136 2P12N(2L[2J12H(2F(2D126 iv I~TI~RI~P(~NIIL i~(lii(l~I lo(le
.
F-l 64

P CONVENTIONAL BRAKE SYSTEM
03UOPX.01
03UOPX-01
03UOPX-01
23UOPX-0
BRAKE FLUID
Inspection
Leakage inspection
Depress the brake pedal several times, and inspect for leak-
age of the brake line system. __,
Brake Fluid Level
Leakage check
Verify that the fluid level in the reservoir is between the MAX
and MIN lines on the reservoir.
Add fluid if it is below MAX.
Replacement
1. Follow the procedure outlined in Air Bleeding.
(Refer to page P-6).
2. Continue bleeding and replacing the brake fluid until only
clean fluid is expelled.
3. Fill the reservoir to the MAX level.
BRAKEPEDAL
Inspection, On-vehicle
Brake pedal height
Inspection
Verify that the distance from the center on the pedal pad to
the floor mat is as specified.
Specification: 193-196mm (7.60-7.72 in)
Adjustment
1. Disconnect the stoplight switch connector.
2. Loosen locknuts @J and turn switch @ until it does not con-
tact the pedal.
3. Loosen locknuts (I?J and turn rod @ to adjust the height
of the brake pedal.
4. Tighten the stoplight switch until it contacts the pedal; then
turn it an additional 112 turn. Tighten locknuts @ and @I.
5. Connect the stoplight switch connector.
6. Verify operation of the stoplights.
P-8

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

T INDEX
EXTERIOR LIGHTS
1. Headlight
Troubleshooting .......................... page T-30
Removal / Installation .................. page T-41
Aiming ......................................... page T-30
2. Front combination light
Removal / Installation .................. page T-41
(1) Turn and hazard warning light
Troubleshooting .................. page T-34
(2) Small light control system
Troubleshooting .................. page T-37
3. Rear combination light
Removal / Installation .................. page T-43
Disassembly / Assembly ............. page T-44
(1) Turn and hazard warning light
Troubleshooting .................. page T-34
(2) Parking light control system
Troubleshooting .................. page T-37
(3) Stoplight
Troubleshooting .................. page T-39
4. Stoplight switch
Inspection ................................... page T-47
T-4
5. License plate light
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . page T-37
Removal I Inspection /
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-47
6. Back-up light switch
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-47
7. Flasher unit
Inspection . . . . . . . . . . . . . . . . . ,.. . . . . . . . . . . page T-42
8. High-mount stoplight
Removal / Inspection /
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-45
9. Rear side marker light
Removal / Inspection /
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-48
0. Daytime running light (DRL) system
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . page T-33
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-42
1. DRL resistor
Removal I Installation . . . . . . . . . . . . . . . . . . page T-46
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page T-46

TROUBLESHOOTING GUIDE T
TROUBLESHOOTING GUIDE
System
Exterior lighting system
Interior lamp system
Warning system
Instrument cluster
Rear window defroster
Cruise control system
Audio system Symptom Reference page
Headlights do not operate T-32
Headlights either do not operate or are dim T-33
Low-High beam or passing flasher does not operate T-33
Daytime running lights (DRL) do not operate T-33
Turn signal lights do not operate T-35
Only hazard function does not operate T-36
Only one side of signal operates
T-36
TNS system (side marker, license, tail, illumination light) does not operate T-38
Both stoplights do not operate when brake pedal is depressed T-40
One stoplight does not come on T-40
IG key illumination does not operate
T-51
Key reminder alarm does not sound
Light-off reminder alarm does not sound
Seat belt alarm does not sound
Seat belt timer does not operate
Passive shoulder belt alarm does not sound
IG key illumination timer does not operate T-58
T-59
T-59
T-59
T-59
T-59
Speedometer does not operate or indication is not correct
Tachometer does not operate
Water temperature gauge does not operate
Fuel gauge does not operate
Defroster does not operate
Can’t set or control the speed T-65
T-66
T-67
T-68
T-76
T-84
No sound
Sound is partial
Bad sound quality of radio
Bad sound quality of tape
Noise
Scan or tuning does not stop T-93
T-93
T-94
T-94
T-95
T-95
T-l 1