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Old 12-04-2019, 09:27 PM   #14
TomM96
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TomM96 will become famous soon enoughTomM96 will become famous soon enough
 
Join Date: May 2004
Location: Long Island, NY
Posts: 1,721
Default Re: question about daytime running lights

> thought that the transmission selector SW might be out of service?

Just the fact that the DRL is OFF when Transmission selector SW is in Park, but can be ON when PRNDL/NSS is in Reverse, Neutral or Drive/Low....

> The Headlamp SW, Park Brake SW, Trans Selector, and IgSW are all involved.
I have OEM manuals for 97&2000-2002, but not for '99 !

Any of the switches might disable, as could a bad ground connection, or wire harness issue.
.......
FDryer's diagram indicates that a chip on the Instrument Panel Cluster does some decisionmaking, dependent on switch positions.....

Some pick-n-pull wrecking yards sell Instrument Clusters for $25.
I bought a useless one for $100- once!
.............................

The only wire harness issue I had in my '97 (drove fr 150-> 230kMI) was trying to run my laptop from the cigar lighter; And I suspect the TAAT Selector SW was responsible for poor operation of the Starter motor's solenoid.

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