Mazda MX-6 1998, Workshop Manual

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CRUISE CONTROL SYSTEM
CRUISE ACTUATOR INSPECTION
W 6 U 1 2 0 W 0 2
1. Measure the voltage at the cruise actuator connector terminals as indicated below.
2. Disconnect the cruise actuator connector before checking for continuity at terminal A, E, F, and I.
3. If not as specified, inspect the parts listed under “Inspection area” and the related wiring harnesses.
4. If the parts and wiring harnesses are okay but the system still does not work properly, replace the cruise
actuator.
Terminal Voltage List (Reference)
W 6 U 1 2 0 W A 4
Terminal Signal
Connection Test condition
Voltage (V)/
Continuity
Inspection area
A
Cruise actuator
ground
Vehicle
speedometer
sensor
Constant: check for continuity to
ground
Yes
Vehicle speedometer
sensor
B
Brake switch
on/off
Brake switch
Depress brake pedal 0
• STOP 20 A fuse
• Brake switch
Release brake pedal
B+
C
— Not used — — —
D IG1
TURN 10 A
fuse
Ignition switch at ON B+
TURN 10 A fuse
Ignition switch at LOCK or ACC 0
E
Cruise control
switch input
Cruise control
switch
SET/COAST switch hold at on:
measure the resistance between
terminals E and F
Approx.
240 Q
Cruise control switch
RESUME/ACCEL switch hold at
on: measure the resistance
between terminals E and F
Approx.
910 n
Other: check for continuity
between terminals E and F
No
F
Cruise control
switch output
Cruise control
switch
SET/COAST switch hold at on:
measure the resistance between
terminals E and F
Approx.
240 a
Cruise control switch
RESUME/ACCEL switch hold at
on: measure the resistance
between terminals E and F
Approx.
9 1 0 «
Other: check for continuity
between terminals E and F
No
G
Brake switch
on/off
Brake switch
Depress brake pedal
B+
• STOP 20 A fuse
• Brake switch
Release brake pedal 0
H Vehicle speed
Vehicle
speedometer
sensor
Vehicle
speed
20 km/h {12 MPH) Approx. 4.5
Vehicle speedometer
sensor
50 km/h {31 MPH} Approx. 8.5
90 km/h {56 MPH}
Approx. 16.5
I
Selector lever
position (ATX)
Transaxle
range switch
Selector lever at N or P range:
check for continuity to ground
Yes
Transaxle range switch
Other: check for continuity to
ground
No
Clutch switch
on/off (MTX)
Clutch switch
Depress clutch pedal: check for
continuity to ground
Yes
Clutch switch
Release clutch pedal: check for
continuity to ground
No
J
Cruise set
indicator light
output
Cruise set
indicator light
Ignition switch at ON B+
• METER 10 A fuse
• Instrument cluster
Ignition switch at
LOCK
or
ACC 0
0 1 -2 0 -2