> Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Customer
Interest: > 00-007 > Jan > 00 > ECM - Idle Fluctuation
Engine Control Module: Customer InterestECM - Idle Fluctuation
Classification:EC99-015
Reference:NTB00-007
Date:January 25, 2000
1999-2000 FRONTIER & 2000 XTERRA WITH VG33E ENGINE & M/T; IDLE FLUCTUATION
APPLIED VEHICLE(S): 1999 Frontier (D22)2000 Frontier (D22), early production only2000 Xterra (WD22), early production only
APPLIED VIN(S): Frontier:
1N6ED2*T3YC312889
Xterra: 5N1ED28Y9YC504150
APPLIED DATE: Manufactured before 5-17-99
APPLIED ENGINE: VG33E only
APPLIED TRANSMISSION: Manual only
SERVICE INFORMATIONIf an applied vehicle has an idle fluctuation when coasting to a stop with the clutch depressed and the transmission in gear, the cause may be the ECMprogram. The idle fluctuation may continue until the vehicle comes to a complete stop.
There is an updated ECM program available to address this incident if it should occur. Use the Service Procedure outlined in this bulletin to correct thiscondition.
For an introduction to and description of ECM Reprogramming, please refer to NTB00-006.
SERVICE PROCEDUREThe service procedure involves three steps:
^ Check/adjust idle speed as outlined.
^ Download the ECM Reprogramming data from ASIST to CONSULT-II.
^ Install the ECM Reprogramming data into the vehicle ECM.
Check/Adjust the Idle Setting.
1. Warm engine to normal operating temperature.
2. Confirm all electrical loads are turned OFF: Headlamps, A/C, Rear Window Defogger, P/S.