Fuse? or????????????

2002 CHEVROLET ASTRO
69,000 MILES • 6 CYL
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AJP340
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2002 chevy astro speedometer, digital gear indicator, gas gague, radio wont work. checked all fuses they all are fine
Jul 4, 2011 at 1:57 PM
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JDL
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The radio has two fuses, one goes hot when you turn on the key, the other fuse is hot all the time. Use a voltage tester on the fuse circuit. Even if the fuse is good, if no voltage, the circuit is dead.
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Jul 4, 2011 at 3:22 PM
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JDL
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Check for applicable trouble codes. The pcm sends serial data to ipc{ instrument panel cluster} for gages.
Jul 4, 2011 at 3:28 PM
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JDL
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Fuel gage defAults to empty, if
Pcm detects malfunction with fuel level sensor or
IPC detects loss of class 2 communication with PCM.

Explanation for other issues are similar. Right now, I'm thinking an issue with IPC, I can't be sure without further testing?
Jul 4, 2011 at 3:42 PM