Condition for fault identification

Test condition:

The fault is recognized when the actual idle speed falls below the specified idle speed by more than 100 RPM.

Potential problem source(s):

• Collateral fault from defective throttle valve
• Leak in air-induction tract between throttle valve and engine

Terminal condition: none

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• Engine warmed to normal temp, above 80 °C

Time condition:

• 3 sec. after engine on

Other conditions:

• Engine ON