Mazda 2002 6 Workshop Manual page 168

Terminal Signal
2H Sensor GND
5
VSS (–)
2I*
2J CMP (+)
Constant voltage
2K
(Vref)
5
VSS (+)
2L*
2M CMP (–)
2N —
2O —
2P Knocking (–)
Coil (Immobilizer
6
2Q*
system)
2R CAN (–)
2S Knocking (+)
Coil (Immobilizer
6
2T*
system)
CONTROL SYSTEM
Connected to
MAF/IAT sensor,
HO2S (Front,
Rear),
ECT sensor, Under any condition
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
Ignition switch ON
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,
Because this terminal is for CAN, good/no
ABS HU/CM,
good judgment by terminal voltage is not
ABS/TCS HU/CM,
possible.
DSC HU/CM
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.
Voltage
Test condition
Below 1.0
F–48–10 Inspection Using An
(Reference).)
F–48–10 Inspection Using An
(Reference).)
Approx.
F–48–10 Inspection Using An
(Reference).)
F–48–10 Inspection Using An
(Reference).)
—
—
Below 1.0
Approx.
Action
(V)
• Inspect related
harness
• Inspect VSS sensor
(See J–5 VEHICLE
SPEEDOMETER
SENSOR
INSPECTION)
• Inspect related
harness
• Inspect CMP sensor
(See F–55
CAMSHAFT
POSITION (CMP)
SENSOR
INSPECTION)
• Inspect related
harness
• Inspect related
5.0 harness
• Inspect VSS sensor
(See J–5 VEHICLE
SPEEDOMETER
SENSOR
INSPECTION)
• Inspect related
harness
• Inspect CMP sensor
(See F–55
CAMSHAFT
POSITION (CMP)
SENSOR
INSPECTION)
• Inspect related
harness
— —
— —
• Perform "On-Board
Diagnostic Test"
(See F–62
ON-BOARD
DIAGNOSTIC TEST)
• Inspect related
harness
• Inspect coil
• Inspect related
harness
• Inspect related
harness
• Perform "On-Board
Diagnostic Test"
(See F–62
ON-BOARD
4.3
DIAGNOSTIC TEST)
• Inspect related
harness
• Inspect coil
• Inspect related
harness
F–48–5
F