Checking Speed Control Operation With No DTC's Present

Tests 1 - 3:

Tests 4 - 8:

Tests 9 - 14:

Tests 15 - 16:

SYMPTOM
* CHECKING THE SPEED CONTROL OPERATION

POSSIBLE CAUSES
- S/C servo ground circuit open
- S/C vacuum solenoid control circuit open
- S/C CANCEL switch
- S/C COAST switch
- S/C SET switch
- S/C throttle cable
- S/C vacuum check valve
- S/C vent solenoid control circuit open
- S/C servo vacuum supply
- S/C servo connector observable defect
- S/C servo