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Skip Shift Bypass question

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Old Aug 9, 2004 | 09:10 PM
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From: Farnham Virginia
Default Skip Shift Bypass question

I'm still getting random P0803 H C codes (skip shift solenoid). Since I have a skip shift bypass on the car I don't see how the PCM is sending this diagnostic message. Any ideas? Thanks
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Old Aug 9, 2004 | 10:07 PM
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Only a guess, but maybe the bypass shorting out or only working intermittently. I would put the correct diode/resistor in there as a doublecheck, and see how that goes? The $.50 fix is available somewhere on this board.
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Old Aug 9, 2004 | 10:19 PM
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Thanks Gary.
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Old Aug 9, 2004 | 10:31 PM
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All of the bypass mods are not GM authorized and can cause problems down the road.
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Old Aug 10, 2004 | 02:39 PM
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Default Check resistance

Originally Posted by Hrdtop00
I'm still getting random P0803 H C codes (skip shift solenoid). Since I have a skip shift bypass on the car I don't see how the PCM is sending this diagnostic message. Any ideas? Thanks
The clip that plugs into the wiring harness should have a 2200-Ohm
resistor in it. Use a digital volt-ohm meter and test it. It's possible
that the resistor may have fried, and there is now an open circuit.

If so, you can replace the resistor by buying a new one at Radio Shack.
Get a package of 2.2k-Ohm 1/2-Watt resistors.
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Old Aug 10, 2004 | 04:50 PM
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From: Hot Springs AR
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Just a simple resistor. Easy way to check is to stick a 2200 ohm resistor in the connector end, tape it up, and drive it for a while and see if the code persists or goes away for good.

Oh, and don't bother about the "down the road" comment: I've done this to a bunch of cars (the 2200 ohm and they've never caused a problem. Yours is the 2nd store bought one that I've heard of failing.

Have a good one,
Mike
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