Auto-Cruise Control System Component Check

AUTO-CRUISE CONTROL SYSTEM COMPONENT CHECK








Stoplight Switch
1. Disconnect the connector.
2. Check for continuity between the terminals of the switch.








Clutch Pedal Position Switch
1. Disconnect the connector.
2. Check for continuity between the terminals of the switch.

Park/Neutral Position Switch (N Position) Refer to On-vehicle Service Essential Service.

Throttle Position Sensor
For 2.4L engine, refer to On-vehicle Service - Throttle Position Sensor Check.
For 3.0L engine, refer to On-vehicle Service - Throttle Position Sensor Check.




Auto-cruise Vacuum Pump
1. Disconnect the vacuum hose from the auto-cruise vacuum pump and connect a vacuum gauge to the vacuum pump.
2. Disconnect the vacuum pump connector.
3. Check the auto-cruise vacuum pump and valves according to the following procedure:
1. Connect the positive battery terminal to auto-cruise vacuum pump connector terminal 1, and the negative battery terminal to terminals 2, 3, and 4. Then the vacuum gauge should read 27 kPa (8.0 in Hg) or more.
2. The vacuum should be maintained when terminal 4 is disconnected from the negative battery terminal while terminals 1, 2, and 3 remain connected. Then the vacuum gauge should read 0 kPa (0 in Hg) when terminal 2 is disconnected from the negative battery terminal while terminals 1, and 3 remain connected.
3. The vacuum should be maintained when terminal 4 is disconnected from the negative battery terminal while terminals 1, 2, and 3 remain connected. Then the vacuum gauge should read 0 kPa (0 in Hg) when terminal 3 is disconnected from the negative battery terminal while terminals 1, and 2 remain connected.




Vacuum Actuator
1. Disconnect the vacuum hose from the vacuum actuator, and connect a hand vacuum pump to the actuator.
2. Check that the throttle lever operates when applying vacuum, and the vacuum is maintained.







Auto-cruise Control Check
Measure the resistance between the terminals when each of the SET, RESUME, CANCEL and MAIN switches is pressed. If the values measured at the time correspond to those in the table below, the resistance values are correct.

Vehicle Speed Sensor Check
Refer to Combination Meters Assembly and Vehicle Speed Sensor.