SECTION 9U
CRUISE CONTROL SYSTEM
Caution : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
SPECIFICATIONS
Fastener Tightening Specifications
Application | N•m | Lb-Ft | Lb-In |
Cruise Control Switch Screw | 2.5 | - | 22 |
SCHEMATIC AND ROUTING DIAGRAM
Cruise Control System
DIAGNOSIS
Cruise Control Diagnosis
Cruise Control Does Not Operate
| Step | Action | Value(s) | Yes | No |
| 1 | Check fuses F13. Is fuse blown? | - | Go to Step 2 | Go to Step 3 |
| 2 | - Check for a short circuit and repair it, if necessary.
- Replace the blown fuse.
Is the repair complete? | - | System OK | - |
| 3 | - Turn the ignition ON.
- Check the voltage at fuses F13.
Is the voltage equal to the specified value? | 11-14 v | Go to Step 5 | Go to Step 4 |
| 4 | Repair the power supply to the fuse. Is the repair complete? | - | System OK | - |
| 5 | - Turn the ignition ON.
- Turn the cruise control switch OFF.
- Use a voltmeter to check the voltage at terminal 17 of the J5 BCM connector.
Is the resistance equal to the specified value? | ≈ 0 Ω | Go to Step 7 | Go to Step 6 |
| 6 | Repair the short to voltage between the cruise control on switch and the J5 BCM connector terminal 17. Is the repair complete? | - | System OK | - |
| 7 | - Turn the ignition ON.
- Turn the cruise control switch ON.
- Use a voltmeter to check the voltage at terminal 17 of the J5 BCM connector.
Is the voltage equal to the specified value? | 11-14 v | Go to Step 9 | Go to Step 8 |
| 8 | Repair the open circuit between fuse F13 and the terminal 17 of the J5 BCM connector. Is the repair complete? | - | System OK | - |
| 9 | - Turn the ignition ON.
- Turn the cruise control switch ON.
- Check the voltage at terminals 3 and 7 of the J5 BCM connector.
Is the resistance equal to the specified value? | ≈ 0 Ω | System OK | Go to Step 10 |
| 10 | Replace the cruise control switch. Is the repair complete? | - | System OK | - |
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
Cruise Control Switch
Removal Procedure
- Remove the SIR module. Refer to Section 8B, Supplemental Inflatable Restraints (SIR).
- Remove the steering wheel side cover.
- Remove the cruise control switch.
Installation Procedure
- Install the cruise control switch.
- Install the steering wheel side cover.
Tighten
Tighten the cruise control switch screws to 2.5 N•m (22 lb-in).
- Install the SIR module. Refer to Section 8B, Supplemental Inflatable Restraints (SIR).
GENERAL DESCRIPTION AND SYSTEM OPERATION
Cruise Control System Operation
The purpose of the cruise control system is to automatically maintain a vehicle speed set by the driver. When the cruise control is activated, speed is maintained or increased by means of an ECM.
If driving conditions require sudden acceleration after the cruise control has been set, speed can be increased in the normal manner by manually pressing the accelerator. The cruise control is disengaged if the brakes (or clutch, with manual transaxle) are applied.
The minimum speed for setting the cruise control is 19 mph (30 km/h). When cruise control is operating, the CRUISE indicator lamp is on in the instrument cluster.
The engine control module (ECM) monitors the signal circuits of the cruise control switches The ECM uses the cruise control switch signal circuit in order to determine when to capture and maintain the vehicle speed. The ECM monitors the vehicle speed sensor signal circuit in order to maintain the vehicle speed. The ECM uses the throttle actuator control (TAC) motor in order control the vehicle speed.
Cruise Control Switch
After the main switch is turned on and the neutral position of the switch is detected by the cruise control actuator, the following operations can be performed by using the cruise control switch:
Set
To engage the cruise control system, turn the cruise control system ON by pressing the cruise On/Off button On and momentarily press the set/coast button when the minimum speed is 19 mph (30 km/h). The ECM will confirm that the cruise control criteria has been met. The ECM will record the vehicle speed and illuminate the cruise indicator.
Pressing the accelerator pedal, while the cruise control system is engaged, will allow the driver to override the cruise control system in order to accelerate the vehicle beyond the current set vehicle speed. When the accelerator pedal is released, the vehicle will decelerate and resume the current set vehicle speed.
Coast
If the cruise control is turned off with the main switch, all cruise control functions are stopped. When the cruise control or ignition is turned off, the cruise control set speed memory is erased.
Accelerate
Activating and holding the RESUME/ACC button, when the cruise control system is engaged, will allow the vehicle to accelerate to a greater vehicle speed than the current set vehicle speed. When the RESUME/ACC button is released, the ECM will record the vehicle speed and maintain the vehicle speed as the new set vehicle speed. When the cruise control system is engaged, momentarily activating the RESUME/ACC button will allow the vehicle to accelerate at 1 mph (1.6 km/h) increments for each time that the RESUME/ACC button is momentarily activated.
Resume
If the cruise control is on, and the system was disengaged by using the brake or clutch, exceeding the Maximum speed, failing to maintain the minimum speed, the last memorized speed can be reset by selecting the RESUME/ ACC button. Momentarily activating the RESUME/ACC button, after the cruise control system has been disengaged by pressing the brake pedal, will recall the previous set vehicle speed that is recorded in the ECM.
If the cruise control is turned off with the main switch, all cruise control functions are stopped. When the cruise control or ignition is turned off, the cruise control set speed memory is erased.
