infiniti Workshop Repair Guides

Infiniti Workshop Service and Repair Manuals

Instrument Panel, Gauges and Warning Indicators > < Vacuum Pump, Cruise Control|Description and Operation
Page 1
background image

Vacuum Pump: Testing and Inspection

Automatic Speed Control Device (ASCD)
ASCD PUMP

1. Disconnect vacuum hose from ASCD pump and ASCD pump harness connector.
2. If necessary remove ASCD pump. 
3. Connect vacuum gauge to ASCD pump.

4. Apply 12V direct current to ASCD pump and check operation.

A Vacuum pressure of at least -40 kPa (-0.41 kg/sq.cm, -5.8 psi) should be generated.

Instrument Panel, Gauges and Warning Indicators > < Vacuum Pump, Cruise Control|Description and Operation