Cruise Control - Increasing Set Speed
Information IB05-04-5002Cruise Control Operation - Increasing Set
Speed
Light Duty ASCENDER 2004 Information ELECTRICAL 02/01/05
Light Duty ASCENDER 2005 Information ELECTRICAL 02/01/05
Cruise Control Operation - Increasing Set Speed
ISSUE DATE: FEBRUARY 2005
Affected Vehicles
2003-2004 Isuzu Ascender (US/UT)
Service Information
This bulletin is being issued to provide dealers with additional information on increasing set speed function during cruise control operation. The Owner's Manual states that the accelerator pedal may be used to increase speed and then establish a new set speed by engaging the set button again. This is true, but the increased speed must be greater than the minimum speed calibrated in the PCM. Minimum speed calibrations vary according to the module the vehicle is equipped with.
If a customer comments that the set button is intermittently inoperative to establish a new set speed, this may be due to the speed increase not being enough. To verify system operation, compare the increased set speed function to another like vehicle. If the operation is similar, then no further work should be performed. If the vehicle does have a condition, then follow diagnostics in the Service Manual for cruise control set speed operation. The tap up feature for cruise control will still increase vehicle set speed.
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