Question about 2000 Chevrolet Blazer

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2000 S10 ZR2

When you turn on ignition switch only service engine light will burn, no other lights will burn, no Tach, no Speed O. no fuel guage, no door locks, no dome lights. Truck starts and run fine. you can turn on headlight switch lift up and hold up on Dimmer switch everything seem to work fine until you release switch.
What is the problem? How do you Diagnoses this problem?

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Replace the dimmer switch insid ethe dash it is usually separate from the headlight switch in these trucks. If not then get a known good switch out of a simial truck from a salvage yard before buying a new one and try that first. it could be that the wiring somehow got damaged. This is the only thing I can think of that may be of some help. the service engine light runs off the computer system where the other lights are illuminated from a separate circuit but if the dimmer control switch is moved and they work it is in that system...a short or a bad switch.

Posted on Dec 07, 2008

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Posted on Jan 02, 2017

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