Ignition positive voltage is supplied from the [cruise fuse],
to the cruise control module. The cruise control module is grounded to the
chassis. When the cruise control switch is on, ignition positive voltage
is supplied to the cruise on/off terminal of the cruise control module.
If the brake pedal is not depressed, ignition positive voltage is supplied
through the cruise control brake release switch, to the cruise cancel [release]
terminal of the cruise control module. If the brake pedal is depressed, battery
positive voltage is supplied from the [stop lamp fuse], through the
closed stop lamp switch to the brake signal input terminal of the cruise control
module. When depressing resume/accelerate (R/A) on the [steering wheel] control
switch, ignition positive voltage is applied to the resume/accelerate terminal
of the cruise control module. When the Set/Coast is depressed on the [steering
wheel] control switch, ignition positive voltage is applied to the set/coast
terminal of the cruise control module.
[The clear switch is closed under normal operating conditions. When
the clear switch is depressed, the ignition positive voltage supplied through
the cruise control brake release switch to the CRUISE RELEASE terminal of
the cruise control module is opened. The cruise control module disengages
cruise operation.]
The cruise control module has a vehicle speed signal input from the
Powertrain Control Module (PCM). In operation, the voltage varies between
0 V and 5 V. The cruise control module sends a signal to the
Powertrain Control Module (PCM) when cruise control is engaged from the cruise
engaged output terminal. The cruise control module cruise inhibit input terminal
is a circuit used by the PCM, to inhibit cruise control when conditions
inconsistent with cruise operation are present.
The PCM will inhibit cruise control:
| • | When vehicle speed is less than 40 km/h (25 mph)
(25 mph) |
| • | When PARK, REVERSE, NEUTRAL, or 1st gear is indicated by
the transaxle range switch |
| • | With high engine RPM (fuel cut-off) |
| • | When vehicle speed is too high |
| • | When an over or undercharged battery voltage condition exists. |
| • | [Antilock brake system/traction control system is active for more
than 2 seconds] |
[If the PCM determines that any of the cruise control inhibit conditions
are present, the PCM requests that the cruise control module disengage cruise
control. The PCM accomplishes this request by opening the cruise inhibit output
circuit. If the cruise engage output signal, sent by the cruise control module
to the PCM, indicates that the cruise control is still engaged after the
PCM has requested that cruise control disengage, the PCM sets a DTC].
