Mazda 6 2002, Workshop Manual

Page: 636 / 1248

P–40
DYNAMIC STABILITY CONTROL
DSC HU/CM INSPECTION
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1. Remove the battery and battery bracket.
2. Disconnect the DSC HU/CM connector.
3. Connect the
SST (49 G066 004) to the DSC HU/CM connector and harness side connector.
4. Inspect voltage referring the table below.
Terminal Voltage Table (reference value)
(Ignition switch is at ON, and connector is connected unless indicated otherwise.)
Terminal Signal Connected to Test condition Voltage (V) Action
A Ground (1) Ground part 1 — Below 1.0
•
Inspect related harness
B Ground (2) Ground part 2 — Below 1.0
•
Inspect related harness
C
Solenoid valve
(power supply)
Battery — B+
•
Inspect DSC HU/CM
•
Inspect related harness
D
Pump motor
(power supply)
Battery — B+
•
Inspect DSC HU/CM
•
Inspect related harness
E
*
—
Check
connector
—
No need to
check
•
Inspect related harness
F
J
LF wheel-speed
LF wheel-speed
sensor
Vehicle is stopped 0 (AC)
•
Inspect related harness
•
Inspect wheel-speed
sensor
•
Inspect using the wave profile.
(See
P–41 Inspection Using An
Oscilloscope (Reference) )
K
H
RR wheel-speed
RR wheel-
speed sensor
Vehicle is stopped 0 (AC)
•
Inspect related harness
•
Inspect wheel-speed
sensor
•
Inspect using the wave profile.
(See
P–41 Inspection Using An
Oscilloscope (Reference) )
M
I
RF wheel-speed
RF wheel-
speed sensor
Vehicle is stopped 0 (AC)
•
Inspect related harness
•
Inspect wheel-speed
sensor
•
Inspect using the wave profile.
(See
P–41 Inspection Using An
Oscilloscope (Reference) )
Q
N
LR wheel-speed
LR wheel-speed
sensor
Vehicle is stopped 0 (AC)
•
Inspect related harness
•
Inspect wheel-speed
sensor
•
Inspect using the wave profile.
(See
P–41 Inspection Using An
Oscilloscope (Reference) )
G Battery (IG) Ignition switch Ignition switch ON B+
•
Inspect related harness
•
Inspect ignition switch
L Brake switch Brake switch
When brake pedal is
depressed
10—14
•
Inspect related harness
•
Inspect brake switch
O
Lateral-G
(lateral-G signal) Combine
sensor
Vehicle is stopped 2.1—2.9
•
Inspect related harness
•
Inspect combine sensor
Right cornering
Fluctuation
between
2.5—4.0
Left cornering
Fluctuation
between
2.5—1.0
P
Combine sensor
power output Combine
sensor
Ignition switch ON 4.75—5.25
•
Inspect related harness
•
Inspect combine sensor
R
Steering angle
(ground) Steering angle
sensor
— Below 1.0
•
Inspect related harness
•
Inspect steering angle
sensor
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