Is there a DTC for a GM 4WD?

Some later model 4WD systems have scan tool capabilities along with diagnostic trouble codes (DTCs) to help locate and diagnose many of the problems associated with them. We looked at two GM K 1500 trucks that have the NVG 246 two- speed transfer case. One is a 1999 model, the other a 2000.

What does ATC stand for in GM trucks?

ATC is the GM acronym for active transfer case. As with any module/computer-based diagnostic strategy, it’s always a good idea to make checking DTCs one of the first steps in your diagnosis. These two trucks have 19 possible DTCs, including those for input, mo- tor, encoder and even VIN codes.

What does DTCs stand for in GM transfer case?

DTCs will stay in memory for 100 key cycles. The dash buttons to the right of the air vent identify this system as an NVG 246 automatic two-speed, which means it has DTCs and scan tool capabilities. mode control is a set of normally open switches that vary the voltage supplied by the transfer case module when closed.

What is mode control on GM transfer case?

The dash buttons to the right of the air vent identify this system as an NVG 246 automatic two-speed, which means it has DTCs and scan tool capabilities. mode control is a set of normally open switches that vary the voltage supplied by the transfer case module when closed.

What’s the difference between a GMC 241 and a 241-C?

All the d-drop and p-drop, 27 and 32 spline 241’s in GM trucks are 241-C’s. Dodge 241’s are not C’s. An NP246 is worth a lot more than a boring 241 d-drop 27 spline case. Don’t go getting hosed in the name of a little quickness. Not the same without you buddy. JasonPayneMemorial If it came from a 1/2 ton suburban it will be a 27 spline unit.

When did the GMC np241-c come out?

It came out of a 1989 Half Ton K1500 pick-up, and was yard tested. Our Tag # 002467 This generation NP241-C will fit 1988 to 1994, as it has a round mounting flange for the front drive shaft. Input Spline: We have run into two different input spline configurations on these cases.

Is the Dodge 241 A C or a B?

Dodge 241’s are not C’s. An NP246 is worth a lot more than a boring 241 d-drop 27 spline case. Don’t go getting hosed in the name of a little quickness. If it came from a 1/2 ton suburban it will be a 27 spline unit. Like I told you in the PM the 241’s from behind a 4l80e will not work with your 4l60e output shaft.

How big is the transfer case on a GMC Truck?

(Mine was out of a 1500 95 sub)/ The inpute shaft for the transfer case is about 1/4 or little more bigger then my out put shaft on my tranny.So seeing what you guys know thanks louis. Also the couple that done the swap crawl under there if you can and see if it says 241 or 241 c thanks.