But it already holds second gear?
Printable View
But it already holds second gear?
Then you don't really need the switch.
The applications where the shift lever holds manual 2nd did not come with a manual mode switch.
The 2001 Envoy had a tow/haul switch.
"Tow/haul mode enables the operator to achieve enhanced shift performance when towing or hauling a load. When tow/haul mode is selected, the tow/haul switch input signal to the body control module (BCM) is momentarily toggled to zero volts. This signals the powertrain control module (PCM) to extend the length of time between upshifts and increase transmission line pressure. Cycling the tow/haul switch again disables tow/haul mode and returns the transmission to a normal shift pattern."
On the 411 PCM, you can enable Performance mode with D0409 as well. You won't have any info in the cluster alerting you though.
Al
aaahhhh.... ok, i was pretty dang confused. thanks joecar.
and the tow/haul would use the performance tables?
Thanks,
Branden
Yes, tow/haul uses the Performance tables.
i understand it all now. thank you very much sir.
Branden
No worries... :cheers: