Mazda 2002 6 - Page 169

CONTROL SYSTEM
F–48–6
2U CAN (+)
Instrument cluster,
ABS HU/CM,
ABS/TCS HU/CM,
DSC HU/CM
Because this terminal is for CAN, good/no
good judgment by terminal voltage is not
possible.
• Inspect related
harness
2V —— — ——
2W
Security light
control
Instrument cluster
(Security light)
Security light illuminate Below 1.0
• Inspect related
harness
Others B+
2X Main relay control Main relay
Ignition switch OFF B+ • Inspect main relay
(See T–24 RELAY
INSPECTION)
• Inspect related
harness
Ignition switch ON Below 1.0
2Y B+ Main relay
Ignition switch OFF Below 1.0 • Inspect battery
• Inspect related
harness
Ignition switch ON B+
2Z
Back-up power
supply
Battery (positive
terminal)
Under any condition B+
• Inspect battery
• Inspect related
harness
2AA —— — ——
2AB GND GND Under any condition Below 1.0
• Inspect related
harness
2AC GND GND Under any condition Below 1.0
• Inspect related
harness
2AD —— — ——
3A —— — ——
3B —— — ——
3C*
2
Vehicle speed VSS (ATX)
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect VSS
• Inspect related
harness
3D*
2
ATF temperature TFT sensor
Ignition switch
ON
TFT 20 °C
{68 °F}
Approx.
3.3
• Inspect TFT sensor
• Inspect related
harness
TFT 40 °C
{104 °F}
Approx.
2.4
TFT 60 °C
{140 °F}
Approx.
1.5
3E —— — ——
3F —— — ——
3G*
2
Input/turbine speed
sensor (+)
Input/turbine
speed sensor
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect input/turbine
speed sensor
• Inspect related
harness
3H —— — ——
3I —— — ——
3J*
2
Input/turbine speed
sensor (–)
Input/turbine
speed sensor
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect input/turbine
speed sensor
• Inspect related
harness
3K*
2, 4
Manual down Down switch
Ignition switch
ON
Detects down-
shift operation
of selector lever
in M range
Below 1.0
• Inspect down switch
• Inspect related
harness
Others B+
3L —— — ——
3M —— — ——
3N*
2, 4
Manual up Up switch
Ignition switch
ON
Detects up-shift
operation of
selector lever in
M range
Below 1.0
• Inspect up switch
• Inspect related
harness
Others B+
3O —— — ——
Terminal Signal Connected to Test condition
Voltage
(V)
Action