1997 GMC C1500 No tach, speedo, gear indication, Service eng

Tiny
GWK
  • MEMBER
  • 1997 GMC C1500
  • V8
  • 4WD
  • AUTOMATIC
  • 17,500 MILES
The tach, speedometer are inop, service eng. Soon light is illuminated, gear indication light is inop - have checked all fuses in L/H driver side interior fuse block and fuse and relay center L/H rear of eng. Compartment and the four fuses blow dash above the pedals - are there anymore? Have checked connectors at tranfer case and easily accessable connectors on transmission (the ones on sides and shift mech). Eng. Dose not seem to shift at all on accelloration. No problems move gear shift on steering colum. Will a diagnostic computor help here. Have no previose history or problems related to this. Thx gwk
Tuesday, February 10th, 2009 AT 3:14 PM

6 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Take it to any autoparts store and get a free Powertrain scan ("P") codes.

You may also want to take it to a shop and get the ("C") chassis, ("B") body and ("U") communictions codes scanned.

Autoparts stores can, generally, only scan "P" codes, but it is free, so start there.

The IP problem may well be a problem with the IP itself, assuming all fuses are good.
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Wednesday, February 11th, 2009 AT 6:05 AM
Tiny
GWK
  • MEMBER
  • 4 POSTS
Thx for the input. For clarrification for me. What is"IP". Unsure what your refering to here. Not up on your accronimes. Is this Input Powertran?
Thank you. Gwk.
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Wednesday, February 11th, 2009 AT 2:59 PM
Tiny
GWK
  • MEMBER
  • 4 POSTS
Thx for the input. For clarrification for me. What is"IP". Unsure what your refering to here. Not up on your accronimes. Is this Input Powertran?
Thank you. Gwk.
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Wednesday, February 11th, 2009 AT 2:59 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Instrument Panel. Sorry for the confusion.
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Thursday, February 12th, 2009 AT 7:59 AM
Tiny
GWK
  • MEMBER
  • 4 POSTS
C - B - U scans are dealer only scan options correct. Will one of these confirm an intrament panel failure. Or at least help narrow down to a higher degree of certianty when they are compared or reveiwed with p code readouts. Again I thank you for your time and efforts. If possible - plz e mail this responce to gwkjetmech@rocketmail. Com. Coming up on my days off. Thx.
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Thursday, February 12th, 2009 AT 3:02 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Scans other than "P" scans are generally dealer or ASE certified garage.

Many garages have the scan tools necessary to scan all codes.

Check with GM about your IP (instrument panel :) ) problem, they may have been recalled and it would not cost you anything.
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Thursday, February 12th, 2009 AT 10:25 PM

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