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Fuse? Or?

Tiny
AJP340
  • MEMBER
  • 2002 CHEVROLET ASTRO
  • 6 CYL
  • 69,000 MILES
2002 chevy astro speedometer, digital gear indicator, gas gague, radio wont work. Checked all fuses they all are fine
Monday, July 4th, 2011 AT 1:57 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
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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Monday, July 4th, 2011 AT 3:22 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Check for applicable trouble codes. The pcm sends serial data to ipc instrument panel cluster for gages.
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Monday, July 4th, 2011 AT 3:28 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
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?
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Monday, July 4th, 2011 AT 3:42 PM

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