Mazda MX-6 1998, Workshop Manual

Page: 539 / 1282

CONTROL SYSTEM [KL]
T e rm in a l v o lta g e (R e fe re n c e )
Term inal S ignal C on n ectio n Test c o n d itio n Voltage (V) P ossible m a lfu n c tio n
1
Shift solenoid B
(ATX)
Solenoid body
ON B+
• Solenoid body
• Related harness
OFF Below 1.0
2 MIL
Malfunction
indicator lamp
Malfunction indicator lamp OFF B+
• MIL
• Related harness
Malfunction indicator lamp ON
Below 1.0
3 — — — — —
4 — — — — —
5
Communication
(Immobilizer)
Immobilizer unit
Check the signal by using an
oscilloscope
—
• PCM’
• Immobilizer unit
• Related harness
6
Transaxle range
position (D range)
(ATX)
Transaxle range
switch (D range) Ignition switch
ON
D range B+
• Transaxle range
switch
• Related harness
Other Below 1.0
7
Transaxle range
position (1 range)
(ATX)
Transaxle range
switch (1 range) Ignition switch
ON
1 range B+
• Transaxle range
switch
• Related harness
Other Below 1.0
8
Cylinder
identification (-) Camshaft position
sensor
Ignition switch ON
Below 1.0
• Camshaft position
sensor
• Related harness
Idle Below 1.0
9
Transaxle range
position (2 range)
(ATX)
Transaxle range
switch (2 range) Ignition switch
ON
2 range B+
• Transaxle range
switch
• Related harness
Other Below 1.0
10 Blower
Fan switch
Iqnition switch
ON
Fan switch
OFF or at 1st
or 2nd
Approx.
10
• Fan switch
• Related harness
Fan switch ON
at 3rd or higher
Below 1.0
11
Torque reduction
(request)
Instrument cluster,
ABS/TCS CM
Ignition switch ON
Approx.
10
• ABS/TCS control
module
• Related harness
Idle
B+
12 — — — — —
13 EP ROM flashing Data link connector
Ignition switch ON
Approx.
0.6
• PCM
• Related harness
Idle
Approx.
0.6
14 DRL DRL unit
Daytime running light ON
Below 1.0
• DRL unit
• Related harness
Daytime running light OFF
Approx.
8.0
15
Diagnostic trouble
code output Data link connector
terminal B U S -
Carry out inspection according to
diagnostic trouble code
Diagnostic trouble code output is
a part of serial communication
Judgment by terminal voltage is
not possible
—
• On-board
diagnostic system
• Related harness
16
Diagnostic trouble
code output
Data link connector
terminal BUS+
Carry out inspection according to
diagnostic trouble code
Diagnostic trouble code output is
a part of serial communication
Judgment by terminal voltage is
not possible
—
• On-board
diagnostic system
• Related harness
17
Condenser fan
control Condenser fan
relay
Condenser fan stops
B+
• Condenser fan
relay
• Related harness
Condenser fan operation
Below 1.0
18 CDCV control
CDCV
Ignition switch ON B+
• CDCV
• Related harness
Diagnosis executed
Below 1.0
19
Pressure regulator
control
PRC solenoid
valve
Idle (Hot condition)
Below 1.0
• PRC solenoid
valve
• Related harness Other
B+
0 1 -4 0 B -4