1987 MAZDA 626 temperature

7B ELECTRICAL SYSTEM COMPONENTS
76G07B-073
7B-66
3. Remove the screw and move the inhibitor switch
so that the small hole is aligned with the screw hole.
4. Set the alignment by inserting a 2.0 mm (0.079
in) diameter pin through the holes.
5. Loosely tighten the switch mounting bolts, remove
the pin, and reinstall the screw.
6. Tighten the switch mounting bolts to specification.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
7. Recheck the continuity of the individual terminals.
WATER TEMPERATURE SWITCH
Inspection
1. Remove the water temperature switch.
2. Place the switch in water with a thermometer and
heat up the water gradually.
3. Check the continuity of the terminals. If necessary
replace the switch.
Connection guide
Water temperature Continuity
Below 65°C (149°F) Yes
Above 72°C (162°F) \ No
FLUID TEMPERATURE SWITCH (G4A-EL)
Inspection
1. Remove the fluid temperature switch.
2. Place the switch in oil with a thermometer as shown
and heat it up gradually.
3. Check the continuity of the terminals. If necessary
replace the switch.
Connection guide
Fluid temperature Continuity
Above 150°C (302°F) Yes
Below 143°C (289°F) No
BRAKE LIGHT SWITCH (G4A-EL)
Inspection of Terminal Voltage
1. Turn the ignition switch ON.
2. Check the voltage between terminal (WG) and
ground while depressing the brake pedal.
Terminal voltage I Brake pedal
Approx. 12V Depressed
Below 1,5V Released
3. If not correct, check continuity of the switch.

ELECTRICAL SYSTEM COMPONENTS 7B
76G07B-083
EC-AT CONTROL UNIT (G4A-EL)
SOLENOID VALVES (G4A-EL)
Inspection of Resistance
1. Disconnect the negative battery cable.
2. Disconnect the solenoid valve connector.
3. Measure the resistance of the terminals except (A)
terminal, if necessary replace the solenoid valve.
Resistance: 13—271]
Note
1-2 solenoid valve : F
2-3 solenoid valve : C,E
3-4 solenoid valve : B
Lock-up solenoid valve : D
NO LOAD SIGNAL (G4A-EL)
Refer to STEP 3 in Troubleshooting.
MODE, AND HOLD INDICATOR LIGHT (G4A-EL)
Refer to Section 15.
OD OFF INDICATOR LIGHT (G4A-HL)
Refer to Section 15.
/ 1S 10 10 1M X 1G 1E 1C

1A
1T 1R 1P 1N 1L 1J 1H 1F 1D 1B
/—
20 2M 2K X 2E 2C 2A
2P 2N 2L 2J 2H 2F 2D 2B
Terminal Voltage Chart
Terminal Connected to Voltage Condition
1A (Input) Hold switch Approx. 12V Switch depressed 1A (Input) Hold switch Below 1.5 V Switch released
1B (Input) Mode switch (Power side) Below 1.5V POWER mode 1B (Input) Mode switch (Power side) Approx. 12V ECONOMY mode
1C (Input)
Inhibitor
switch
L range Approx. 12V L range 1C (Input)
Inhibitor
switch
L range Below 1.5V Other ranges
1D (Input) Inhibitor
switch
S range Approx. 12 V S range 1D (Input) Inhibitor
switch
S range Below 1,5V Other ranges
1E (Input)
Inhibitor
switch D range Approx. 12V D range 1E (Input)
Inhibitor
switch D range Below 1.5 V Other ranges
1F (Input)
Inhibitor
switch
N and P range
Below 1,5V N or P range 1F (Input)
Inhibitor
switch
N and P range Approx. 12V Other ranges
1G (Input) Water temperature switch Approx. 12V Above 72°C (162°F) 1G (Input) Water temperature switch Below 1,5V Below 65°C (149°F)
1H — —
11 — —
7B-69

7B ELECTRICAL SYSTEM COMPONENTS
Terminal Connected to Voltage Condition
1J — — —
1K — — —
1L (Input) Idle switch Below 1.5V At idle 1L (Input) Idle switch Approx. 12V Other speeds
1M — — —
1N (Input) Brake light switch Approx. 12V Brake pedal depressed 1N (Input) Brake light switch Below 1.5V Brake pedal released
10 (Input) Throttle sensor
Approx. 5V Ignition switch ON 10 (Input) Throttle sensor Below 1,5V Ignition switch OFF
1P (Input)
Throttle sensor
Approx. 0.5—4.3V Throttle valve fully closed to fully open
1Q (Input) Vehicle speed sensor
Approx. 4.5V During driving
1Q (Input) Vehicle speed sensor Approx. 4.5V or below 1.5V Vehicle stopped
1R (Ground) Throttle sensor Below 1,5V —
1S (Input) Pulse generator Approx. 12V Engine running 1S (Input) Pulse generator Below 1,5V Engine stopped
1S (Ground) Pluse generator Below 1.5V —
2A (Battery power) Battery Approx. 12V Ignition switch ON 2A (Battery power) Battery Below 1,5V Ignition switch OFF
2B (Ground) Body ground Below 1,5V —
2C (Memory power) Battery Approx. 12V —
2D (Ground) Body ground Below 1,5V —
2E (Output) 1-2 shift solenoid valve Approx. 12V
Refer to page 7B—26 of solenoid valve
operation table
2E (Output) 1-2 shift solenoid valve Below 1.5V Refer to page 7B—26 of solenoid valve
operation table
2F (Output) 2-3 shift solenoid valve Approx. 12V
Refer to page 7B—26 of solenoid valve
operation table
2F (Output) 2-3 shift solenoid valve Below 1,5V
Refer to page 7B—26 of solenoid valve
operation table
2G — — —
2H (Output) 3-4 shift solenoid valve Approx. 12V Refer to page 7B—26 of solenoid valve operation table 2H (Output) 3-4 shift solenoid valve Below 1.5V
Refer to page 7B—26 of solenoid valve operation table
21 — — —
2J (Output) Lock-up solenoid valve Approx. 12V Lock-up 2J (Output) Lock-up solenoid valve Below 1,5V Other
2K (Output) Hold indicator Below 1,5V Hold mode 2K (Output) Hold indicator Approx. 12V Other modes
2L (Output) Mode indicator Approx. 12V Hold mode 2L (Output) Mode indicator Below 1,5V Power or economy mode
2M (Output) EC-AT Tester
(malfunction code)
Approx. 12V Normal
2M (Output) EC-AT Tester
(malfunction code) Below 1,5V If malfunction present 2M (Output) EC-AT Tester
(malfunction code) Code signal Self-diagnosis check connector grounded
2N — — —
20 (Input) Fluid temperature switch Below 1,5V Above 150°C (302°F) 20 (Input) Fluid temperature switch Approx. 10—12V Below 143°C (289°F)
2P (Input) EC-AT check connect Approx. 12V —
76G07B-084
7B-70

ON-VEHICLE MAINTENANCE 7B
ON-VEHICLE MAINTENANCE
AUTOMATIC TRANSAXLE FLUID (ATF)
Inspection for Fluid Leaks
Check for fluid leaks; the following figure shows the locations where fluid leakage may possibly occur.
1. Oil pan
2. Control valve body cover
3. Oil pump
4. Inhibitor switch
5. Speedometer driven gear
6. Pulse generator (G4A-EL)
7. Oil filler tube
8. Throttle cable
9. Bearing cover
76G07B-085
10. Driveshaft
11. Square head plug
12. Transaxle case
13. Drain plug
14. Oil cooler return pipe
15. Oil cooler outlet pipe
16. Fluid temperature switch (G4A-EL)
17. Blind plugs
18. Governor cover (G4A-HL)
Inspection of Level
1. Apply the parking brake and position wheel chocks
to prevent the car from rolling forward.
Note
Place the car on a flat, level surface.
2. Run the engine so that the automatic transaxle fluid
reaches specified temperature.
3. While the engine is idling, shift the select lever from
P to L or P to 1 and back again.
4. Let the engine idle.
5. Shift the select lever to P.
76G07B-086
7B—71

7B ON-VEHICLE MAINTENANCE
86U07B-064
86U07B-065
t «
•A
0 0
0 »
LX] O 9
m
(2)

(1)

Button need not
be depressed
Button must be pressed
76F07B-022
6. Ensure that the ATF level is between the F and L
marks. Add ATF to specification, if necessary.
Low temperature scale:
20°C (68°F)
High temperature scale:
65°C (149°F)
ATF type:
Dexron II or M HI
Inspection of Condition
1. Check the ATF for discoloration.
2. Check the ATF for any unusual smell.
Note
Determine whether or not the automatic trans-
mission should be disassembled by observ-
ing the condition of fluid carefully.
If the fluid is muddy and varnished, it indicates
burned drive plates.
SELECTOR LEVER
Inspection
1. Check that the selector lever can only be shifted
as shown in the figure.
2. Make sure there is a click at each range when shift-
ed from P <-> L or P <-» 1 range.
3. Check that the position of the selector lever and
the indicator are exact.
4. Check that the button returns smoothly when used
to shift the selector.
Adjustment
1. Loosen locknuts A, B, and lockbolt C.
2. Shift the selector lever to P range.
3. Shift the transaxle to P range by moving the man-
ual shaft of the transaxle.
4. While holding the selector lever forward in P range,
tighten lockbolt C to the specified torque.
Tightening torque:
8—11 N-m (80—110 cm-kg, 67—95 in-lb)
76F07B-023
7B—72

ON-VEHICLE MAINTENANCE 7B
'mfm^i! kfOl iff t—
76G07B-093
76G07B-094
Main fuse block (G4A-EL)
Install the main fuse block.
Tightening torque:
8—11 Nm (80—110 cm-kg, 69—95 in-lb)
Battery carrier
Install the battery carrier.
Tightening torque:
31—40 Nm (3.2—4.1 m-kg, 23—30 ft-lb)
ATF level
After installation, add ATF, and with the engine idling,
check the fluid level and for leaks. (Refer to page
7 B—71)
Adjustment (G4A-EL)
1. Remove the splash shield next to the left front tire.
2. Remove the square head plug L and install the
SST
3. Shift into P range and start the engine. Warm up
the engine to normal operating temperature, and
adjust the idle speed.
Idle speed: 950 ±5o rpm
76G07B-095
3 CO CO 03

(1)

L
Line pressure
beeing to increase
I
Adjusting point

•
clockwise Counter
clockwise Position of locknuts
86U07B-482
4. Adjust locknuts as follows:
When the locknuts are moved, line pressure is in-
creased or decreased as shown. Adjust the lock-
nuts to the correct position using the following
procedure.
(1) Initially install the locknuts fully away from the
throttle cam. (Loosen the cable all the way)
(2) Adjust the locknuts in a clockwise direction as
viewed from the front of the vehicle until the
line pressure begins to increase above the
specification shown below.
7B—75

7B ON-VEHICLE MAINTENANCE
Line pressure decreases
Line pressure increases
86U07B-483
Protector
-7 / Throttle cable
86U07B-080
(3) Adjust the locknuts in a counterclockwise direc-
tion until the line pressure decreases to the
specification. Tighten the locknuts.
Specified pressure: 432—450 kPa
(4.4—4.6 kg/cm2, 63—66 psi)
Note
Transmission in P range
5. Turn off the engine.
6. Reinstall the square head plug.
Tightening torque:
5—10 N m (50—100 cm-kg, 43—87 in-lb)
7. Fully open the throttle valve; then crimp the pin with
the protector installed as shown.
8. Remove the protector.
Adjustment (G4A-HL)
1. Remove the splash shield next to the left front tire.
2. Remove the square head plug T and install the
SST
3. Shift into P range and start the engine. Warm up
the engine to normal operating temperature, and
adjust the idle speed.
Idle speed: 900 -5o rpm
76G07B-096
3 tn tn (1)
L
Counter- ^ clockwise
Throttle pressure
beeing to increase
I Adjusting point
Position of locknuts
Clockwise
4. Adjust locknuts as follows:
When the locknuts are moved, throttle pressure is
increased or decreased as shown. Adjust the lock-
nuts to the correct position using the following
procedure.
(1) Initially install the locknuts fully away from the
throttle cam. (Loosen the cable all the way)
(2) Adjust the locknuts in a clockwise direction as
viewed from the front of the vehicle until the
throttle pressure begins to increase above the
specification shown below.
76G07B-097
7B—76

7B REMOVAL
76G07B-107
G4A-EL
76G07B-108
76G07B-109
1. Remove the battery and battery carrier.
2. Disconnect the main fuse block.
3. Disconnect the distributor lead.
4. Disconnect the air flow meter connector and re-
move the air cleaner assembly. (G4A-EL)
5. Remove the air cleaner hose. (G4A-EL)
6. Remove the fresh air duct. (G4A-HL)
7. Disconnect the speedometer cable.
8. Disconnect the connectors.
(1) Inhibitor switch
(2) Solenoid valve
(3) Pulse generator (G4A-EL)
(4) Fluid temperature switch (G4A-EL)
9. Disconnect the grounds from the transaxle case.
10. Disconnect the selector cable.
11. Disconnect the throttle cable.
76G07B-110
7B—84