1992 MAZDA PROTEGE sensor

01 LAMP.., ., ,..... . . . . . . 9.. a.. . . . 9.e.. . . . . . . . . . . . . . . T-5233
ARTER .,,.,..,..,..,,....,..,......,........................ G-25
RTER INTERLOCK SWITCH .,............... G-31
ERING GEAR AND LINKAGE . . . . . . . . . . N-13,30
ERING KNUCKLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-5
TEERING WHEEL AND COLUMN . . . . . . . ,.. N-8,26
WITCH . . . . . . . . . . . . ..I..................... T-47
THERMOSTAT . . . . . ,.,..,......,.. . . . . . . . . . . . . . . . . . . . ..a..... . E-9
THROTTLE BODY . . . . . . . . . . . . . . . . . ..s............. . . . . . F-l 12
THROTTLE SENSOR .., . . . . . . . . . s............. . . . . . . . . F-l 69
TNS RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T-18
TRIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-97
TRUNK COMPARTMENT LAMP . . . . . . . . . . ..a..... T-54
TRUNK LID ,,.,...........,................................... S-33
TRUNK LID LOCK AND OPENER a.............. S-35
VACUUM CHAMBER (VICS) . . . . . . . . . . . . . . ..s..... F-l 19
AND INDICATOR LAMP . ..a........ T-60
BUZZER
AND TIMER . . . . . . . . . . . . . . . . . T-58
MP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-l 1
THERMOSENSOR s..........,.. F-l 68, T-72
THERMOSWITCH ..,,....................... E-l 6
ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-7
HEEL CYLINDER ,.............,..,.................... P-30
HEEL HUB .r,....,......................................... M-5
HEELS AND TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q-3
INDSHIELD WIPER AND WASHER . . . . . . . . . . S-67
WASHER MOTOR ,.......,..,...................... S-71
WINDSHIELD WIPER
AND WASHER SWITCH s............,......... S-71
WIPER MOTOR ,....,,............................... S-70
INDSHIELD .,.......,.....,..,....,,....................... S-58

Reading Wiring Diagrams Z-GI-9
Symbol ‘ Meaning Symbol Meaning
Horn l Generates sound when current flows. Switch (1) l Allows or breaks current flow by
opening and closing circuits.
Speaker
w
Heater l Generates heat when current flows. Normally open (NO)
Switch (2)
Normally closed (NC)
Harness l Unconnected intersecting harness.
Speed sensor l Movement of magnet in speedometer
set turns contact within sensor on and
Off. (Not connected)
l Connected intersecting harness.
Ignition switch @Turning ignition key operates switch
contacts to complete various circuits.
(Connected)
rlormally open (NO)
Relay (1) l Current flowing through coil produces electromagnetic force causing contact to open or close.
____- .~.~~
Open Closed
--.--.-m.---------,
Relay (2) Normally open relay (NO)
- Ri i No flow ’ ni 1 Closed
Normally closed relay (NC) Flow
ormally closed (NC)
Sensor (variable) l Resistor whose resistance changes Diode
l Known as a semiconductor rectifier.
--3p6G- with operation of other components. diode allows current flow in one
direction only
--T- IA
IY Calhode(K)+- Anode(A)
* Flow of electric current
K-1 KD, he>:
-
ensor (thermistor)
l Resistor whose resistance changes Light emitting diode 0 Diode that lights when current flows
with temperature.
(LED)
l Unlike ordinary light bulbs, diode does
not generate heat when lit
Capacitor
l Component that temporarily stores “2, Cathode(K) --&---Anode(A)
I7
Cathode(K)
electrical charge.
c Anode(A)
----il---- .
Flow of electric current
Solenoid
l Current flowing through co11 generates Reference(zener) l Allows current to flow In one dlrectlon
electromagnetic force to operate diode up to a certain voltage. allows current
plungers, etc. cd to flow In other dIrectron once that
J-
voltage IS exceeded.
z-9

Troubleshooting Z-Gl-13
el
-
Ill
31
-
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le
Usina electrical test eaubment -----w - I - Equipment Use Operation Handling precautions
Test lamp Test for locating open or shorted l Connect the test lamp
0 Test lamps use 12V 1.4 or
R circuits. between the circuit being
3.4W bulbs or light- emitting
measured and a ground.
diodes (LED). Using a large
*The
lamp will light if the circuit
capacity bulb may damage the
is energized to the point
CPU.
,.WD,.l
b tested.
Jumper wire
Used to create a temporary l Connect the jumper wire 0 Do not connect the power side
circuit. between the terminals of a directly to a ground as this
circuit to bypass a switch, etc. may burn the harness or
damage electrical
/d<;>‘-
d components.
I
n
Voltmeter
Used for measuring the voltage
l Connect the positive (+) lead l Connect the voltmeter In
of a circuit to locate possible to where voltage is to be parallel with the circuit.
opens or shorts. measured and the negative
0 Set the range to the desired
(- ) lead to a ground. voltage.
l Use the service hole when
measuring the voltage at the
diagnosis connector.
~Tie a thin wire to the posrtive
(+) lead to access narrow
terminals.
Ohmmeter
Ammeter Used for locating opens and
l Zero the ohmmeter. *Zero the meter after switching
shorts in the circuit, confirming
I to the measuring range.
continuity of switches and
checking sensor resistance. &.--
l Before using the ohmmeter,
make sure that the ignition
l Verify that current is not switch is OFF or the negative
flowing through the circuit. (- ) battery cable is
0 Touch the leads to the check disconnected to prevent
points.* burning the ohmmeter.
Used for checking alternator
l Connect the ammeter in l Set the range to the desired
output, current supplied to the series with the circuit by
voltage.
starter, and dark current within a touching the positive (+) lead
l Connect the ammeter in series
circuit. to the power side terminal and
with the circuit. The ammeter
the negative (- ) lead to the
may be burned If it is
Note ground- side terminal.
connected in parallel.
Dark current is the current
flowing through the circuit when
the Ignition switch is OFF.

Troubleshooting Z-Gl-I 5
Measuring continuity/resistance -
Touch the ohmmeter leads to the switch terminals to check
continuity.
Caution
Verify the operating state of the switch before checking
continuity because readings vary accordingly.
Remark
The negative (- ) lead of the ohmmeter is connected
to the positive terminal of the internal ohmmeter
battery. The positive (+) lead to the negative terminal
of the battery. Continuity is checked according to the direction of the positive
(+) and negative (-) leads of the ohmmeter in the circuit
containing the diode.
Connection Continuity
Yes
NO
Verify the operating state of the sensor before checking
resistance because readings vary accordingly.
1. Short between the terminals with a jumper wire to discharge
the capacitor.
2. Set the ohmmeter range to xl Ok Q and connect it to the
capacitor terminals.
3. The capacitor is good if the needle of the ohmmeter swings
once and returns to it original position.

II-GM6 Troubleshooting
Finding short circuits
Shorts occur between the power(positive) and ground(negative) sides of a circuit.
Therefore, finding a shdit circuit requires determining how the circuit is routed.
Circuits not connected to control unit
Examples
Indication
0 Fuse melts. Finding short circuit
0
Test lamp 1. Remove the fuse and
main fuse of the circurt.
2. Disconnect all connectors
of electrical components
in the circuit.
3. Attach a voltmeter or test
lamp to the fuse box and
reconnect each
connector, beginning
nearest the power
source.
4. Check the voltmeter or
see if the test lamp lights
as the connectors are
connected. Finding short circuit
,,{:““o
1. Remove the fuse and main
fuse of the circuit.
2. Disconnect all connectors of
/ electrical components in the
circuit.
Test lamp 3. Attach a voltmeter or test
lamp to the fuse box and
reconnect each connector,
beginning nearest the power
4. Check the voltmeter or see
if the test lamp lights as the
connectors are connected.
Sensor/switch
1. Attach the test lamp or
voltmeter to the CPU
connector.
2. Connect to the swrtch/
sensor connector.
3. Check the voltmeter or see
if the test lamp lights.
A short has occurred where voltmeter
reads OV or the test lamp goes out,
- Short location
Battery Short (A)
l Main fuse melts.
L* Short(B)
0 The motor operates regardless
of whether thermoswitch ON
or OFF when the ignition
switch is ON. Short (C)
lotor
M
P The-
tmo-
switc *The fuse is not melted.
@The main fuse melts when the
ignition switch and thermo-
switch are ON and the relay is
operating. Short (D)
Circuits connected to control unit
-T Examples
Indication
l Fuse melts.
- Short locatior
I
ignition switch
I
Fuse R-l Short (A)
J+L--l
Short (A) l Solenoid A operates normally
when the ignition switch is
ON.
9enold m rfr solenok
;<
A) u a(B) ’ Short (6)
l The CPU transistor burns out
when the ignition switch is
turned ON. Short (C)
l The CPU thinks the switch is
ON because the same
conditions exist as when the
switch is ON.
*The CPU senses the sensor
to be 0 R because the
conditions exist as when
resistance value is 0 R
*The CPU equipped with the
self-diagnosis function output
the malfunctron code. Short (0)
Swltcl1 ml
Short (E) Z-16

kll?lNQ MAQRAY
EGI MT l ENGINE CONTROL SYSTEM (l/3)
30A
STARTING
SYSTEM
(SECTION A-
MAIN
RELAY
[FUEL
INJ)
: 1
Ix-181
-W/R [EM) ENGINE CONTRO- UNIT
v (EM) --------+ lc
1G
IB
- LG (EM) 81-01 ~~=~~~===~T-~-~~~---~~--------------------------~--
I I I
FL% A
a
I SHIELD I
WIRE :
/ 1 WATFJ
DIAGNOSIS CONNECTOR
(SECTION u)
!I-01 ENGINE CONTROL UNIT (EM) 81-02 MAIN RELAY iE) 81-03 CIRCUIT OPENING
1” IS 10 ID ,M 1K II IG 1E IC IA 2~ 2~ 2~ 25 20 20 2~ 2K 21 2G 2E 2C 2A (FUEL INJ) RELAY (EM)
)t LG/Y X G/W Y/0 v L/R * L/O Y < x LG/R * x /LG B/O
R/Y B/L B/G L/y R/W (‘;“’ L/B t W/B W/Y W/R x W/L Y/B G/O * R/B R/L LG/W * “;’ * /BP B/O
I” IT 1R IP IN IL lJ 1H IF ID 16 2L 2X 2” 27 2R 2P 2N 2L 2J 2H 2F 20 28
II -04 FUEL TANK UNIT [RI Bl-05 IGNITER (EM) Bl-06 CONDENSER (EM) 81-07 IGNITION COIL (EM) ~1-08 OXYGEN SENSOR (EM)
~~~ (w] (jj (JJD @
Z-26

HARNESS COLOR : FRONT- ENGlNE - WIRING DIAGRAM
I
I
E l-1 b -I
INJECTOR NO.3
81-18
GRAY) WATER
THEFlMOSENSOR
(GREEN)
ENGINE CONTROL
“NIT
(BLACK)
z-29

HARNESS COLOR : FRONT- ENGINE m
5
P
/ !%%!,E SENSOR
Bl-20
// I WIRING DIAGRAM
81-21
CLUTCH SWITCH
@LACK)
ENGINE CONTROL
“NIT