The door switch is built into the latch on the GMT800 trucks just like my 2005 VW. The switches fail and you can't R&R them from the latch so you have to replace the $200 latch because of a failed $2 switch.
Get the cluster rebuilt by a competent tech. It needs six, or seven with the optional transmission temp gauge, X27 stepper motors and likely needs new lamps and cracked solder joint repairs as well. The tooling to do the repairs correctly costs more than sending it out.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
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