1992 MAZDA PROTEGE alternator

G
ENGINE ELECTRICAL SYSTEM
INDEX ......................................................
OUTLINE ..................................................
SPECIFICATIONS .................................... G- 3
TROUBLESHOOTING
GUIDE.. .................... G-
4
DIAGNOSTIC INDEX ................................
SYMPTOM TROUBLESHOOTING..
............. :- t
-
CHARGING SYSTEM ................................. G- 6
PREPARATION .......................................
CIRCUIT DIAGRAM ................................. :I ;
TROUBLESHOOTING .............................. G- 7
BATTERY ............................................... G- 6
ALTERNATOR ........................................ G-10
DRIVE BELT ........................................... G-14
IGNITION SYSTEM .................................... G-15
PREPARATION ....................................... G-15
CIRCUIT DIAGRAM ................................. G-15
TROUBLESHOOTING .............................. G-16
IGNITION TIMING ................................... G-17
HIGH-TENSION LEAD .............................. G-17
SPARK PLUGS ....................................... G-16
IGNITION COIL ....................................... G-19
DISTRIBUTOR ........................................ G-20
IGNITER ................................................ G-23
STARTING SYSTEM .................................. G-24
PREPARATION ....................................... G-24
CIRCUIT DIAGRAM ................................. G-24
STARTER ...............................................
G-25
STARTER INTERLOCK SWITCH (MTX)
........ G-31
03UOGX-001

G INDEX
NDEX
- 03UOGX-00:
6. Ignition coil 1. Battery
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page G- 8
Recharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..t page G- 9
2. Alternator
Removal / Installation . . . . . . . . . . . . . . . . . .
page G-l 0
Disassembly / Assembly . . . . . . . . . . . . . page G-l 1
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page G-l 2
3. Drive belt
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page G-l 4
Adjustment . . . . . . . . page G-l 4
Replacement . . . . . . . . . . . . . .
page G-l 4
4. High-tension lead
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page G-l 7
5. Spark plugs
Removal / Installation . . . . . . . . . . page G-1 0
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page G-l 8
G-2
Inspection .,.. . . . . . . . . . . . . . . . . I . . . . . page
G-l 9
7. Distributor
Spark test ., . . . . . . . . . . ,... . . . . . . . .
page G,-20
Electronic advance inspection page G-20
Removal / Installation ,................. page G-21
Disassembly / Assembly.. , . . page
G-22
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page G-22
8. Igniter
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page G-23
9. Starter
Removal / Installation .;...........,.... page G-25
Disassembly ! Assembly . . . . . . . . . . . . . page G-26
Inspection . . . . ...‘........................,,,
page G-28 .--
10. Starter interluck switch
Inspection... . . . . . . . . . . . . . . . . . . . . ,.., ,...,
page G-31

TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
DIAGNOSTIC INDEX
No. Troubleshooting items
Page
1
Will not crank-starter motor does not operate G-4
2
Will not crank-starter motor spins G-4
3
Cranks slowly G-5 4
Alternator warning lamp illuminates when engine running
G-5
5 Discharged battery G-5
6
Misfire
G-5
03UOGX-004
SYMPTOM TROUBLESHOOTING -
1
iTEl
1
2
3 Will not crank-Starter motor does not operate
INSPECTION
T
Check if engine cranks with fully charged battery
Check if battery voltage is applied at B terminal
TERMINAL
battery voltaae is aoolied at S terminal
when clutch pedal depressed (MTX) and ignition
switch in START position
S TERMINAL
Yes
No
Yes ACTION Check charging system CT- page G-7
Go to next step
Go to next step
No Check wire harness
Yes
l Check magnetic switch l Check field coil l Check armature
No
l Check starter interlock switch (MTX) ccp: page G-31 l Check inhibitor switch (ATX) c=p Section K l Check ignition switch CI Section T l Check wire harness
1 L-T page G-28
CT- page G-29
CT- page G-29
23UOGX.001
03UOGX-006
G-4

TROUBLESHOOTING GUIDE G
3 Cranks slowly
STEP INSPECTION ACTION
1 Check if engine cranks normally with fully Yes Check charging system CT page G-7
charged battery
No Go to next step
2 Check starter cable connection for looseness Yes Repair or replace connection
and corrosion
OBUOGX-OC
I 1 4
.
Alternator warning lamp illuminates when engine running
STEP INSPECTION ACTION
1 Check for correct battery voltage at idle Yes Check wire harness between alternator L terminal and aI*
Specification: 14.1--14.7V ternator warning lamp
No Check charging system w page G-7
03UOGX-008
5 I Discharged battery I 1TEP INSPECTION
f Check charging system w page G-7 -
6
TEF
1
r
--
Yes
03UOGX-009
ACTION
Turn ignition switch ON and check dark current as shown
Dark current: Below 20mA
No Repair or replace parts as necessary 1
Misfire
INSPECTION
-
Disconnect high-tension lead from each spark
plug and check for strong blue spark while
cranking
, i
Yes
No T-
I
ACTION
- Check spark plug w page G-f8
~3 If OK, engine electrical system normal
~3 If not OK, clean or replace spark plug
Check ignition system ci’ page G-16
1 03UOGX-010
G-5

G CHARGING SYSTEM
03UOGX-011
CIRCUIT DIAGRAM
CHARGING SYSTEM
PREPARATION
SST
I I
49 9200 020
Tension gauge,
V-ribbed belt For
inspection of
drive belt tension
STATOR
1 DIODE TRIO
T l-f-l /
-I J
WARNING
t
I --.- I I I I 15A
e I
I I -L
-E-
I IC REGULATOR
0
-
BATTERY = IGNITION
SWITCH
03u0tix-012
The alternator has a self-diagnostic function to warn of the following
If a problem arises, the alternator warning lamp illuminates. problems in the charging system.
1. S terminal circtiit open
2. No voltage output
3. Field coil circuit open
4. B terminal circuit open
5. Voltage output too high
G-6

CHARGING SYSTEM G
TROUBLESHOOTING
INSPlhdN
ACTION
1
Check battery voltage Yes Go to next step Specification: Above 12.4V
No
Check battery ri-page G-8
2 Start engine and check if alternator warning
Yes Go to Step 4
lamp goes out
No Go to next step
3 Check if voltages at alternator terminals are Yes Check wire harness between battery and terminal B
3. Turn all electrical loads ON and depress
2,500-3,000 rpm
l Do not ground terminal B
G-7

G
ALTERNATOR
Removal / Installation
CHARGING SYSTEM
Caution
l Be sure the battery connections are not reversed, because this will damage the rectifier.
l Do not use high-voltage testers such as a megger, because they will damage the rectifier.
l Remember that battery voltage is always applied to the alternator B terminal.
l Do not ground the L terminal while the engine is running.
l Do not start the engine while the connector is disconnected from the L and S terminals.
1. Remove in the order shown in the figure.
2. Inspect all parts and repair or replace as necessary
3. Install in the reverse order of removal.
N.m (m-kg, R-lb)
OSlJOGX b20
1. Negative battery cable
2. Vacuum hose
3. Solenoid bracket (If equipped)
4. Connector
5. B terminal wire
Inspect for damage and corroston 6. Drive belt
Inspection. . . . ., ~.. ,. ,.... . , page G-l 4
Adjustment ,~, ,.,., ,. ,. ,, ,.. page G-l 4
Replacement . . . . . . . . page
G-l 4
7. Alternator
Disassembly / Assembly ,........,... page G-l 1
Inspection... ,, . . . . . . . . . . . . . . . . . . . . . . . . . . . page G-l 2
G-10

G CHARGING SYSTEM
WATER PUMP 13UOGX-00,
03UOGX-03:
I /I I III
I f 03UOGX-03:
03UOGX-034
DRIVE BELT
Inspection
1. Check the drive belt and pulley for wear, cracks, and fray-
ing. Replace if necessary.
2. Measure the drive belt tension with a tension gauge. .-A
Tension N (kg, lb)
Drive belt
Alternator
A/C and P/S New Used
383-461
304-303
(39-47, 85.8-103.4) (31-39, 68.2-85.8)
491-589 422-491
(50-60, 11 O-l 32) (43-50, 95-110)
3. Measure the deflection by applying moderate pressure (98
N, 10
kg, 22 lb) midway between the pulleys. Adjust if
necessary.
Deflection mm (in)
Drive belt
Alternator
AIC and P/S New Used
8-9 9-10
(0.31-0.35) (0.35-0.39)
8-9 9-10
(0.31-0.35) (0.35-0.39)
Adjustment
1. Loosen the alternator mounting bolt and adjusting bolt.
2. Move the alternator to set the specified deflection.
3. Tighten all bolts and recheck the tension.
Replacement
1. Remove the A/C and P/S drive belt, if equipped.
Note
l Refer to pages 61-5 and 82-5.
2. Loosen the alternator mounting bolt and adjusting bolt.
3. Remove the alternator belt.
4. Install the new alternator belt and adjust it to specification.
5. Tighten all bolts to the specified torque.
Tightening torque
Alternator bolt:
37-52 N#rn (3.8-5.3 m-kg, 27-38 ft-lb)
Adjusting bolt:
19-25 N-m (1.9-2.6 m-kg, 14-19 ft-lb)
6. Install the A/C and P/S drive belt if equipped, and adjust
to specification.
Note
l Refer to pages 61-5 and 82-5.
G-14