headlights MAZDA PROTEGE 1992 Workshop Manual

F TROUBLESHOOTING GUIDE
RELATIONSHIP CHART
OUTPUT DEVICE
INPUT DEVICE
DIAGNOSIS CONNECTOR
[TEN TERMINAL) 0 0 0 0
IGNITION SWITCH (START POSITION) 0 0 0 0 0 0
E/L SIGNALg4 0
0
P/S PRESSURE SWITCH 0 0
B/C SWITCH 0 0 0
INHIBITOR SWITCH (ATX) 0 0 0 0 0 0 0
NEUTRALANDCLUTCH
SWITCHES (MTX) 0 0 0 0 0 0 0
STOPLIGHT SWITCH 0
0
&TMOSPHERIC PRESSURE SENSOR
[IN ECU) o 0 0 0 0
rHROTTLE SENSOR 0 0 0 0 0 0 0
INTAKE AIR THERMOSENSOR 0 0 0 0 0
MRFLOW METER 0 0 0 0 0
3XYGEN SENSOR 0 0 0 0
JVATERTHERMOSENSOR 0 0 0 0 0 0 0
G-SIGNAL*’ 0 0
3ISTRIBUTOR
Ne-SIGNAL 0 0 0 0 0 0 0 0
-- ,.-, ,--., ,.*
+z
*3 &HC
MIL: Malfunction Indicator Lamp
r.9u”rn-” I
*’ E/L SIGNAL: Blower fan control switch second position or higher, cooling fan operating, headlights ON, or rear win-
dow defroster switch ON
F-24

F TROUBLESHOOTING GUIDE
11 ROUGH IDLE/ENGINE STALLS AT IDLE - WHEN A/C, P/S, OR E/L ON
DESCRIP.
*Engine stalls or vibrates excessively at idle when A/C, P/S, or E/L ON TION *A/C, P/S, daytime running lights (Canada), headlights, blower fan and electric cooling fan operate normally
*Idle condition is normal when A/C, P/S, and E/L is OFF (TROUBLESHOOTING HINTS]
@ Idle speed control system malfunction l Engine speed feedback control inoperative ;TEP INSPECTION
ACTION
1
Check if “00” is displayed on Self-Diagnosis Yes
Checker with ignition switch ON Go to next step W page F-82 No
Service Code No. displayed
Check for cause (Refer to specified
SYSTEM SELECT: 1 check sequence) w page F-83
“88” flashes
W:SELFTEST
Check ECU terminal 1 F voltage w page F-150
Specification: Battery voltage
(Ignition switch ON)
* If OK, replace ECU w page F-149
c3 If not OK, check wiring between
ECU and Self-Diagnosis Checker
2 Check switches for correct operation by Self-
Yes
Diagnosis Checker Monitor Lamp with ignition Go to next step
switch ON CT page F-105
No Lamp not ON or OFF with specltied
switch
Check for cause (Refer to specified
check sequence) w page F-108
Lamp always ON
Check wiring between ECU terminal ID
and Self-Diagnosis Checker
W:SELFTEST
3
EhFKk if ECU terminal IK (MTX) II (ATX) voltage
Yes Try known good ECU and check if con-
dition improves w page F-150 w page F-149
Specification: Battery voltage (at Idle)
1 K (LGIY)
No
Check for short circuit in wiring be-
tween diagnosis connector terminal
TEN and ground
23UOFX-02
-’
F-48

SELF-DIAGNOSIS FUNCTION F
SWITCH MONITOR FUNCTION
Individual switches can be inspected by the SST (Self-Diagnosis checker).
Note
l The TEN terminal of the diagnosis connector must be grounded and the ignition switch ON
(engine stopped).
l If either of the switches remain activated, the monitor lamp will be illuminated.
ECU
NEUTRAL SWITCH (MTX)
CLUTCH SWITCH (MTX)
=d-’ 1
BATTERY
INHIBITOR SWITCH (ATX)
STOPLIGHT SWITCH (MTX)
HEADLIGHT SWITCH MONITER LAMP
REAR WINDOW (SELF-DIAGNOSIS CHECKER)
DEFROSTER SWITCH
AIC SWITCH
BLOWER SWITCH
THROTTLE SENSOR asp-
- _
COOLING FAN SWITCH
03UOFX
Switch
Clutch switch
Neutral switch (MW
(M-W Self-Diagnosis Checker (Monitor lamp)
Light ON Light OFF Pedal released Pedal depressed
In gear Neutral Remark In gear
Clutch pedal released
Inhibitor switch
(ATX) L, S, D or R range
N or P range -
Throttle sensor Pedal depressed (Not fully) Pedal released/fully depressed -
Stoplight switch
Pedal depressed Pedal released -
Headlight switch
ON
OFF Headlights/parking lights: ON
Blower switch
ON
OFF Blower switch at 2nd or
above position
AIC switch
ON OFF Fan speed control at 1st po-
sition
Rear window defroster
switch ON
OFF -
Water thermoswitch Fan operating Fan not operating -
23UOFX-084
F-l 05

F CONTROL SYSTEM
VB: Battery voltage
erminal Input Output Connection to Test condition Corrsct voltage Remark
1M - - - - - -
IN 0 Throttle sensor Accelerator pedal released ov Ignition switch
(Idle switch)
Accelerator pedal depressed
VB ON
10 0
1P 0 Stoplight switch
P/S pressure
switch Brake pedal released
Brake pedal depressed
Ignition switch ON
P/S ON at idle
P/S OFF at idle ov
-
VEi
Va
ov
VS -
10 0 A/C switch A/C switch ON
A/C switch OFF Below 23 Ignition switch
VS ON and blower
motor ON
1R 0
IS 0 Fan switch
Blower control
switch Fan operating (Engine coolant tempera-
ture over 97% (207OF) or diagnosis con-
nector terminal TFA grounded)
Fan not operating (Idle)
Blower control switch OFF or 1st position
Blower control switch 2nd or higher po-
sition ov
-
V0
Ve ignition switch
ov ON
IT 0 Rear window
defroster switch Rear window defroster switch OFF
Rear window defroster switch ON ov
VB
Ignition switch ON
1u 0
iv 0 Headlight switch
Neutral/Clutch
switches Headlights ON
Headlights OFF
Neutral position or clutch pedal
depressed
Others V0
-
ov
ov
VB -
1 I lr----t
r-i
ul r
2Y 2w 2u 2s 20 20 2M 2K 21 2G 2E 2’3 2A 1lJ 1s IQ 10 1M 1K 11 1G 1E 1~ 1A
22 2x 2v 2T 2R 2P 2N 2L 2J 34 2t= 2D 28 Ii/ fT 1R 1p IN 1L 1J 1H 1F 1D 18
F-l 52

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
3~ lawlau13SI3Q13013M]3K131 13Gl3EI3C (3A 20]2M;2KI21 (2Gl2E12C)2A ltJ~LS~lo)l01~~1~ II IIG~IE( 1CIlA
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

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

T
Specifications
Item
Headlight
Front turn signal/Parking light
Stop/Taillight
High mount stoplight
Rear turn signal light
Back-up light
License plate light
Rear side marker light
EXTERIOR LIGHTING SYSTEM
* PROTEGi Number Specification (W) (Bulb trade number)
2 65/45 (9004)
2 27/8 (1157)
2*, 4 (3HB) 27/8 (1157)
1 18.4 (1141)
2 27 (1156)
2 27 (1156)
2 7.5 (89)*, 5 (168) [3HB]
2 3.8 (194)
13lJOTX.022
AIMING
1. Adjust the tire air pressure to specification.
2. Position the unloaded vehicle on a flat, level surface. /----------
03UOTX-046 1 3. Adiust the headlights to meet local regulations. To adjust,
Note
l Adjust, using specification numbers 9H-15V (found
on headlight lens) with a “HOPPY” brand aimer or
equivalent.
I
9MUOTX-148
turk the two adjusting screws.
TROUBLESHOOTING
Headlight
Circuit diagram
T-30
OSUOTX-184

I
EXTERIOR LIGHTING SYSTEM
Headlights do not operate (Low and/or High)
(Without cruise)
I
Turn ON light switch (second position)
I
Check head 30A main fuse Short circuit
0
Confirm battery voltage on R w Repair harness (Main fuse - Combination switch) L
I
0 OK
Confirm battery voltage on R wire (when Low) and/or
R/W wire (when High) of the combination switch Replace the combination switch
Confirm battery voltage on R wire (when Low) and/or
R/W wire (when High) of the headlight Repair harness (Combination switch - Headlight)
I
0
Confirm continuity on B wire of the headlight
Repair harness (Headlight - Body ground)
Burnt out bulb
23UOTX-017 Headlights do not operate (Low and/or High)
I
(With cruise)
I
Turn ON light switch (second position)
Short circuit
0 OK
Confirm battery voltage on W/R wire of the combination switch
I
8) C OK Repair harness (Main fuse - Headlight relay)
I
Replace the headlight relay
1
Repair harness (Headlight relay - Combination switch)
Confirm battery voltage on R wire (when Low) and/or
R/W wire (when High) of combination switch connector Replace the combination switch
1
Q 1 OK
Disconnect headlight connector. Confirm battery voltage
on R wire (when Low) and/or on RIW wire (when High)
of connector
,o OK
Repair harness (Combination switch - Headlight)
1
I
Confirm continuity on B wire of the headlight connector
to ground Repair harness (Headlight - Body ground)
I
T-32
OK _ Replace the bulbs
23UOTX-018