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 ON/OFF 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 pressed, ignition positive voltage is supplied
through the cruise control brake release switch, to the cruise cancel terminal
of the cruise control module. When the brake pedal is pressed, 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 pressing resume/accelerate (R/A) on the multifunction turn signal
lever, ignition positive voltage is applied to the resume/accelerate terminal
of the cruise control module. When the Set/Coast is pressed on the multifunction
turn signal lever, ignition positive voltage is applied to the set/coast
terminal of the cruise control module.
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, cruise engaged outout
terminal, sends a signal to the Powertrain Control Module (PCM) when cruise
control is engaged . 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 engaged 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 the cruise control diengage, the PCM sets a DTC.
