4wd dash light doesnt come on when engaged.4wd doesnt engage.standard shift. the front driveshaft turns.

2001 CHEVROLET TRACKER
12,600 MILES
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TTOMMIS
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4wd diesnt engage
Oct 10, 2012 at 8:09 PM
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KHLOW2008
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Check the 4WD switch at transfer case. Does 4WD Low light indicates?
Oct 10, 2012 at 8:28 PM
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TTOMMIS
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No. The 4wd low light doesnt come on.In high or low.
Oct 10, 2012 at 10:18 PM
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KHLOW2008
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Check the fuses in diagram first. If all fuses ar good, you could have a fault with the PCM wiring or a bad ground circuit ( behind right side of dash) for the 4WD switches
Oct 10, 2012 at 10:24 PM
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TTOMMIS
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Im not sure of rhe fuse location.
Oct 10, 2012 at 10:35 PM
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KHLOW2008
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Sorry, I was supposed to attach the diagram.

You would need a testlight or DVOM handy if you want to continue with diagnostics if the fuses are good.
Oct 10, 2012 at 10:37 PM
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TTOMMIS
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Thank You for your quick response and expertese.Its suppertime here now . iwill check the fuses tomorrow and will get back with you.Thanks again,Tom.
Oct 10, 2012 at 11:12 PM
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TTOMMIS
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Hi.I checked all the fuses their ok.I have a test light and will wait for your instructions.
Oct 11, 2012 at 3:33 PM
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KHLOW2008
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Which engine do you have?
Oct 11, 2012 at 5:10 PM
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TTOMMIS
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2.0
Oct 11, 2012 at 9:20 PM
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KHLOW2008
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Here are the schematics. Turn ignition switch on and at the PCM, use the test light to ground terminal # 26, C3 (connector # 3 ) and note if the 4WD Low indicator light comes on.

Likewise repeat above with terminal # 18 of C4, for 4WD light.

Note the wire colors to be sure which terminal is the correct one.
Oct 11, 2012 at 10:05 PM
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TTOMMIS
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Hi.I am having trouble locating the powertrain control module.Exactly where us it?
Oct 12, 2012 at 1:36 AM
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KHLOW2008
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Under right side of dash.
Oct 12, 2012 at 1:20 PM