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1997 Chev Suburban Malfunction - Electrical & Lighting Systems
Question: tachometer, spedometeter; both stopped working. transmision indicator does not work transmision starts in high gear.
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Technican: Sounds like a power failure to these systems. Have you checked all fuses and fusible links?
Please advise your vehicle's engine, transmission and two or four wheel drive info. I'll access a data base tomorrow for ideas once I know these facts.
Owner: it has a over drive automatic transmision, 4 wheel drive, 5.7 liter engine, this problem is speratic and i have checked only one fusible link at battery and replaced battery cable and power supply cable to relay-fuse panel in engine compartment.
thanks,
Marty!
Technican: Are you driving when the condition happens or does it usually happen at engine start up? What have you noticed will get these systems working again?
Have you checked for diagnostic codes present?
Please advise.
Technican: A Technical Service Bulletin (TSB) #01-07-30-002B issued by GM may, 2001 addresses the condition you have described.
Upon investigation, one or all of the diagnostic trouble codes (DTCs) P0740, P0753, P0758, P0785, P1860 may be set.
If you do NOT have any aftermarket electronic device such as a remote starter or alarm system installed:
1. With the key in the run position, test for voltage at Fuse "Trans 20" in the fuse box.
2. If battery voltage is present at the fuse, inspect circuit 1020 between the fuse and the transmission for possible opens.
3. If battery voltage is not present at the fuse, replace the ignition switch with GM Part number 26061330.
If you have aftermarket equipment installed then check it's installation for the trouble source.
Do you have a fax number? I will send you the bulletin for your review.
Owner: Thank You So much for your time!! if you could please sent me that bulletin our fax number is 1-541-575-3601! thanks again!!
Marty!
Technican: I'm glad to offer an answer to this really odd failure. To gain the best understanding I had to read the bulletin several times. You'll be surprised at how many models are included in this publication.
Look it over and let me know what else I may do for you.
Technican: Your Fax is on it's way 0950 hrs CDT 9-23-05
Technican: Have you received the fax I sent? Does it answer your question?
Please advise your thoughts,
Technican: I'm checking in for an update. Any News here?
Technican: Hello, May I have the courtesy of an update on the status of this question please? Here's How To Get Guaranteed Solutions In Minutes
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