Possible Causes

WARNING: This page is about a different car, the 2003 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Malfunction is detected when idle speed is not in specified range. Possible causes are:

Defective electric throttle control actuator.
Intake air leak.

NOTE: If target idle speed is not 600-700 RPM, perform IDLE AIR VOLUME LEARNING procedure before proceeding. See PROGRAMMING .

NOTE: Before proceeding, ensure battery voltage is more than 11 volts at idle and ambient temperature is more than 14°F (-10°C).