B Ody E Lectrical - Mazda 626 MX-6 Workshop Manual

4B
CONTROL SYSTEM
Terminal Input Output
Connection to
10 O Distributor (G2 ©
signal)
1P
O Distributor (G1, G2 ©
signal)
1Q o Distributor (Ne ©
signal)
1R
0
Knock control unit
1S o Warning buzzer
Overboost
1T
o Distributor (Ne ©
signal)
1U —
—
1V
o
o
1W
Test connector
o
1X Igniter (IGt signal)
o
2A
o
2B Air flow meter (Vc)
2C
— —
o
2D Oxygen sensor
o
2E Air flow meter (Vs)
o
2F EGR position sensor
o
2G Throttle sensor
o
2H
Atmospheric pres­
sure sensor
o
21 Water thermo sensor
o
2J Air flow meter (In­
take air thermo
sensor)
o
2K
Solenoid valve (Pres­
sure regulator
control)
2L
—
* ' Type A: Manufacturer for CPU of body electrical system is " NEC".
*2 Type B: Manufacturer for CPU of body electrical system is " YAZAKI or U-shin"
4B—106
Voltage (After warming-up)
IGN: ON
—
--
Test connector grounded: below 0.5V
Test connector not grounded: above 10.5V
Approx. 0V
V ref
Ground (E )
2
0V
Approx. 1.7V
Accelerator pedal released: Approx. 0.5V
(depends on 2A terminal voltage)
At sea level: approx. 4.0V
Approx. 2.5V at 20°C (68°F)
For 120 sec. after
ignition switch OFF
- ON: below 3.5V
—
626, MX-6 Revised 10/87
Idle
Approx. 0.6—0.8V
Approx. 0.6—0.8V
Approx. 0.6—0.8V
3.3—5.0V
TypeA*1: Approx. 0.08V
Type B*2: Approx. 12V
Approx. 0.6—0.8V
—
Constant below 1.5V
Constant above 10.5V
Approx. 0.6—0.8V
4.5—5.5V
OV
0-1 .0V
Approx. 4—6V
0.25—0.95V
0.3—0.6V
For 120 sec. after
starting: below 3.5V
Battery voltage
—
Remarks
Knocking: 1.3—2.6V
Buzzer sounds:
Type A: 0V
Type B: Blow 1V
—
MTX
ATX
Green connector,
1-pin
• Cold engine: 0V
at idle
• After warming-up:
Increase engine
speed: 0.5—1.0V
Deceleration:
0—0.4V
Increase engine
speed:
voltage increases
Max. voltage (Throt­
tle valve fully
opened): approx.
4.3V
Engine coolant
temp. 20°C (68°F):
approx. 2.5V
Hot condition: Cool­
ant temp, above
70°C (158°F) and
Intake air temp,
above 20°C (68°F)
Other conditions
—