AUTO-CRUISE CONTROL SWITCH
)
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, then there is no problem.
| Switch position |
Terminal connector of tester |
Specified condition |
|---|---|---|
| MAIN switch: OFF |
1 -
2 |
Open circuit |
| MAIN switch: ON |
1 -
2 |
Approximately 3.9 kΩ |
| CANCEL switch: ON |
2 -
3 |
Less than 2 Ω |
| RESUME switch: ON |
2 -
3 |
Approximately 910 Ω |
| SET switch: ON |
2 -
3 |
Approximately 220 Ω |
AUTO-CRUISE VACUUM PUMP
)
- Disconnect the vacuum hose from the auto-cruise vacuum pump and connect a vacuum gauge to the vacuum pump.
- Disconnect the vacuum pump connector.
- Check the auto-cruise vacuum pump and valves according to the following procedure:
- 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 or more.
- 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 when terminal 2 is disconnected from the negative battery terminal while terminals 1 and 3 remain connected.
- 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 when terminal 3 is disconnected from the negative battery terminal while terminals 1 and 2 remain connected.
VACUUM ACTUATOR
)
- Disconnect the vacuum hose from the vacuum actuator, and connect a hand vacuum pump to the actuator.
- Check that the throttle lever operates when applying vacuum, and the vacuum is kept.
STOP LAMP SWITCH
- Disconnect the connector.
)
- Check for continuity between the terminals of the switch.
| Measurement conditions |
Terminal connector of tester |
Specified condition |
|---|---|---|
| When brake pedal is depressed. (for stop lamp circuit) |
1 -
2 |
Less than 2 Ω |
| 3 -
4 |
Open circuit |
|
| When brake pedal is not depressed. (for auto-cruise control circuit) |
1 -
2 |
Open circuit |
| 3 -
4 |
Less than 2 Ω |
INHIBITOR SWITCH ("N" POSITION)
Refer to GROUP 23A, On-vehicle Service - A/T Control Component Check 
.THROTTLE POSITION SENSOR
Refer to GROUP 13B, On-vehicle Service -
Throttle Position Sensor Check .