Cruise Control System - Mazda 2006 MX-5 Service Highlights

01–20

CRUISE CONTROL SYSTEM

CRUISE CONTROL SYSTEM OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–20–1
Component and function . . . . . . . . . . . 01–20–1
End of Toc
CRUISE CONTROL SYSTEM OUTLINE [LF]
• The cruise control system enables driving at a constant speed by setting the vehicle speed with the cruise
control switch instead of operating the accelerator pedal.
• The PCM controls the throttle valve actuator to maintain the vehicle at a constant speed.
Component and function
Component
ABS HU/CM (CAN
communication: Vehicle speed
signal) or VSS
ON OFF
SET/–
Cruise control
switch
RES/+
CANCEL
Brake switch
CPP switch (MT)
Neutral switch (MT)
PCM
Throttle valve actuator
Cruise main indicator light
Cruise set indicator light
End Of Sie
CRUISE CONTROL SYSTEM
The vehicle speed signal is sent to the PCM from either the ABS HU/CM or
VSS.
This is the main switch of the cruise control system. Turning the
ON OFF ON OFF switch to on switches the cruise control system to
standby status.
When the vehicle speed exceeds 27 km/h {17 mph} during normal
driving (cruise control system is in standby status) and the SET/–
SET switch is released after it is pressed, the PCM stores the vehicle
speed at the time the switch is released and the cruise control
begins.
Tapping the SET/– switch (tap-down operation) or continuously
–
pressing it during cruise control decreases the set vehicle speed.
If the RES/+ switch is pressed while the cruise control is in
standby status (PCM has stored a set vehicle speed) and the
RES vehicle speed exceeds 27 km/h {17 mph} during normal driving,
the cruise control system activates to control the vehicle speed to
the set vehicle speed.
Tapping the RES/+ switch (tap-up operation) or continuously
+
pressing it during cruise control increases the set vehicle speed.
Pressing the CANCEL switch during cruise control switches the
CANCEL cruise control system to standby status (Set vehicle speed is
saved).
Depressing the brake pedal during cruise control switches the cruise control
system to standby status (Set vehicle speed is saved).
Depressing the clutch pedal during cruise control switches the cruise control
system to standby status (Set vehicle speed is saved).
Shifting to neutral during cruise control switches the cruise control system to
standby status (Set vehicle speed is saved).
• The cruise control system activates or stops based on the cruise control
switch ON OFF signal.
• The cruise control duty signal, which is based on each input signal, is sent
to the throttle valve actuator.
The duty signal sent from the PCM adjusts the throttle valve opening angle.
This illuminates an amber color while the cruise control system is on standby.
This illuminates a green color while the cruise control system is in control
status.
CRUISE CONTROL SYSTEM
STRUCTURAL VIEW [LF] . . . . . . . . . . . 01–20–2
CRUISE CONTROL SYSTEM
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–20–3
Function
01–20
E5U012000000N01
Installation
location
Engine
compartment
Steering
wheel
Brake pedal
Clutch pedal
Manual
transaxle
Engine
compartment
Throttle body
Instrument
cluster
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