Mazda Mazda6 Workshop Manual Supplement page 127

Terminal Signal
2D CKP (+)
2E IAT
2F —
2G CKP (–)
2H Sensor GND
8
VSS (–)*
2I
13
—*
2J CMP (+)
Constant voltage
2K
(Vref)
8
VSS (+)*
2L
13
—*
2M CMP (–)
2N —
2O —
2P Knocking (–)
Coil (Immobilizer
9
system)*
2Q
10
—*
2R CAN (–)
2S Knocking (+)
CONTROL SYSTEM
Connected to
• Inspect using the wave profile.
CKP sensor (See
Oscilloscope
Ignition switch
MAF/IAT sensor
ON
—
• Inspect using the wave profile.
CKP sensor (See
Oscilloscope
MAF/IAT sensor,
HO2S (Front,
Rear), BARO
6
sensor* , ECT
Under any condition
sensor, TP
sensor, MAP
sensor, TFT
sensor, TR switch
• Inspect using the wave profile.
VSS (See
Oscilloscope
—
• Inspect using the wave profile.
CMP sensor (See
Oscilloscope
MAP sensor, TP
sensor, BARO
Ignition switch ON
6
sensor*
• Inspect using the wave profile.
VSS (See
Oscilloscope
—
• Inspect using the wave profile.
CMP sensor (See
Oscilloscope
—
—
Ignition switch ON (Use digital
type voltmeter, because
measurement voltage will be
Knock sensor
detected less than true voltage
when using analog type
voltmeter)
Because this terminal is for communication,
Coil good/no good judgment by terminal voltage
is not possible.
—
Instrument cluster,
ABS HU/CM,
Because this terminal is for CAN, good/no
ABS/TCS HU/CM,
good judgment by terminal voltage is not
DSC HU/CM,
possible.
12
TCM*
Ignition switch ON (Use digital
type voltmeter, because
measurement voltage will be
Knock sensor
detected less than true voltage
when using analog type
voltmeter)
Voltage
Test condition
F1–44 Inspection Using An
(Reference).)
IAT 20 °C
2.4—2.6
{68 °F}
IAT 30 °C
1.7—1.9
{86 °F}
—
F1–44 Inspection Using An
(Reference).)
Below 1.0
F1–44 Inspection Using An
(Reference).)
—
F1–44 Inspection Using An
(Reference).)
Approx.
F1–44 Inspection Using An
(Reference).)
—
F1–44 Inspection Using An
(Reference).)
—
—
Below 1.0
—
Approx.
Action
(V)
• Inspect CKP sensor
• Inspect related
harness
• Inspect IAT sensor
• Inspect related
harness
— —
• Inspect CKP sensor
• Inspect related
harness
• Inspect related
harness
• Inspect VSS sensor
• Inspect related
harness
— —
• Inspect CMP sensor
• Inspect related
harness
• Inspect related
5.0 harness
• Inspect VSS sensor
• Inspect related
harness
— —
• Inspect CMP sensor
• Inspect related
harness
— —
— —
• Perform "On-Board
Diagnostic Test"
• Inspect related
harness
• Inspect coil
• Inspect related
harness
— —
• Inspect related
harness
• Perform "On-Board
Diagnostic Test"
• Inspect related
4.3
harness
F1–39
F1