I have a 2006 Silverado 1500 4X4 that intermittently shows the "Service four wheel drive" warning. Had B2725 - Mode switch circuit malfunction code.
Inspected wiring for chafing and grounds. Warning was not displayed while here. Research in iatn and napafix indicated most common issue with this condition is encoder motor. Replaced encoder motor 11/9 (NAPA part - probably A-1 Cardone ). Have used these in the past with success. Everything functioned at that time. Delivered vehicle.
Yesterday warning came on again. Same code. No warning while here and everything functions.
One of my techs has a 2001 Silverado that he bought new and he says his does this same thing. While under warranty dealer replaced encoder, switch and tccm module. He says that when warning comes up if he cycles key it goes away and everything is good.
Any experience or insight from the troops?
2006 Chev Silverado - 4X4 Malfunction
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2006 Chev Silverado - 4X4 Malfunction
Arlin G. Sample
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
- steven kiser
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Re: 2006 Chev Silverado - 4X4 Malfunction
agreed with above
never argue with a fool, they'll drag you down to their level and beat you with experience
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Re: 2006 Chev Silverado - 4X4 Malfunction
Installed a new function switch today. Will let customer drive for awhile and see if it cured her issues. I Will update when I know more.
Arlin G. Sample
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
- fortknoxx
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Re: 2006 Chev Silverado - 4X4 Malfunction
has this been offroaded atleast once? check all wires going to connectors.
T-N-T (Tina Nuse-Tolar)
Gone but not forgotten...Camper Bob's
609-760-7079 Cell
Gone but not forgotten...Camper Bob's
609-760-7079 Cell
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Re: 2006 Chev Silverado - 4X4 Malfunction
This customer came in last evening with a good report and paid the bill. Has only used 4X4 once since replacing the dash switch. It functioned as commanded and no warning lights have come on.
Arlin G. Sample
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
Automotive Services of All Sorts, Inc.
Greeley, CO 80631
970-352-5598
- steven kiser
- 5K Holy Smokes Contributor
- Posts: 6184
- Joined: Fri Jul 06, 2007 4:58 am
- Location: eastern ma.
Re: 2006 Chev Silverado - 4X4 Malfunction
great news......thanks for posting
never argue with a fool, they'll drag you down to their level and beat you with experience