Mazda MX-6 1998, Workshop Manual

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CONTROL SYSTEM [KL]
T erm inal S ignal C on n ectio n Test c o n d itio n Voltage (V) P o ssib le m a lfu n c tio n
57 Knocking Knock sensor
Ignition switch ON
Approx.
3.5
• Knock sensor
• Related harness
Idle
Approx.
3.5
58
Vehicle speed
Vehicle
speedometer
s e n s o r(+)
Idle (AC range)
Approx.
0.1
• Vehicle
speedometer
sensor
• Related harness
48 km/h {30 mph} (AC range)
Approx.
8.0
88 km/h {55 mph) (AC range)
Approx.
12.7
59 — — —
— —
60
Heated oxygen
sensor
Heated oxygen
sensor (Front RH)
Ignition switch ON Below 1.0
• Heated oxygen
sensor (Front RH)
• Related harness
Idle
Engine cold
Below 0.5
After warm up
0.1— 0.9
Acceleration 0.5— 1.0
Deceleration 0— 0.5
61
Heated oxygen
sensor
Heated oxygen
sensor (Rear)
Ignition switch ON Below 1.0
• Heated oxygen
sensor (Rear)
• Related harness
Idle
Engine cold
Approx. 0
After warm up 0.1— 0.9
62 Fuel tank pressure
Fuel tank pressure
sensor
Ignition switch
ON
Fuel tank
pressure 0 kPa
{0 mmHg, 0
inHg}
(Barometric
pressure)
Approx.
2.5
• Fuel tank pressure
sensor
• Related harness
63 Fuel level
Fuel gauge sender
unit
Full fuel
Approx. 6
• Fuel level sender
unit
• Related harness
Low fuel Approx. 0
64
Load/No load
distinction
Neutral/Clutch
switch (MTX),
Transaxle range
switch (ATX)
MTX
Other than neutral position and
clutch pedal released
B+
• Neutral switch
• Clutch switch
• Transaxle range
switch
• Related harness
ATX
Other than P and N positions
MTX
Neutral position or clutch pedal
depressed
Below 1.0
ATX
P or N position
65
— — — — —
66
Rear window
defroster
Rear window
defroster switch Ignition switch
ON
Rear window
defroster
switch OFF B+
• Rear window
defroster switch
• Related harness
Rear window
defroster
switch ON Below 1.0
67
Purge control
Purge solenoid
valve
Ignition switch ON
B+
• Purge solenoid
valve
• Related harness
Idle
B+
68 EGR control
EGR valve (Coil
#1)
Ignition switch ON
B+
• EGR valve
• Related harness
Idle
69 A/C control A 1C relay
Idle
A/C switch
OFF
B+
• A/C relay
• Related harness
A/C switch ON
and fan switch
ON
Below 1.0
0 1 -4 0 B -7