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SUVs Chevrolet Blazer Chevy Blazer GMC Jimmy Electrical Problems
328 messages, Last post on Aug 25, 2008 at 6:42 PM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
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I'm pumped, just bought a 97' Jimmy yesterday. Very, very well kept. Just 71k mi. Went to open rear hatch earlier today (worked fine yesterday) with the key remote and it wouldn't open. So, I used the button on the dash to open it, it wouldn't open. I tried the key, wouldn't open. I finally checked the fuse (# 2- 20amp) and it was blown. (also controls lighter, horn, etc.) I tried to replace it, and once the new fuse made contact it sparked and blew. The next time I tried replacing the fuse without the engine running, again it blew. What could be causing this? I'm sure probably a short in the wiring somewhere, but where should I begin? I am a rookie to auto-repair, but not bad at it. Please someone help me!
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Replying to: do_it_myself (Aug 07, 2008 2:40 pm) To blow a 20 amp on contact, you have a hard short. Shouldn't be too hard to find. Look at the wiring around the lighter, and under the dash for any cuts, jumpers, modifications, that sort of thing. Did the car have a custom audio system that was removed before selling? Or an electric brake controller for trailer brakes?
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Replying to: jlflemmons (Aug 07, 2008 6:50 pm)
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Replying to: do_it_myself (Aug 07, 2008 7:33 pm) Jim |
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I have a 2000 GMC Jimmy and I noticed that things are starting to either short out, or blow out. I've checked all the fuses and they all seem to be fine. What I have noticed is that my LED tail light has refused to work for some time. Not exactly sure how to check whether it has gone bad or what. Another thing is the lights for my Gearshift Display (R, N, D, 3, 2, 1) does not illuminate anymore, along with 4 of the 6 channel buttons for the stock stereo. Any ideas? Thanks, Bobby
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Replying to: bobbyb96 (Aug 09, 2008 4:33 pm) If the entire LED light is out, it could have been damaged by high voltage, but that is not likely. Check your owners manual and see if there is a specific fuse for the third brake light. |
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My 2001 Blazer has started having problems with the electrical display. The right side signal light comes on, but does not flash. The left side signal light comes on but flashes at double the normal rate (like a bulb was burned out), unless I hit the Hazard Light switch for a few seconds, then it goes back to normal. Also, more recently, the ABS and Parking lights will sometimes light up on the dash, unless I shut off the engine and restart. Then it all works fine. Any help would be appreciated. |
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| recently my left rear break/blinker fuse began blowin, i changed bulbs, flasher, taped harness wires leaving jack compartment to left tail-light assembly; and looked for any bare wires to ground. still kept blowing fuse when i did any of 3 things; activate 4 way, break, or left turn. Then after a few weeks, both left and right fuses began blowin not necessarily at same time but sometimes yes. Now for about a week my left has stopped blowin and the right is not doing it as often. When the fuses blew i never lost running lights or the led break light over rear hatch. Thanks for any help. | |
I just found out today that I need the multifunction switch on my 1997 Blazer replaced. The dealership that I talked to wants about $600.00 for the part and the labor. I plan on trying to replace it myself. Anyone out there have any suggestions for me??
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Replying to: bear19 (Aug 25, 2008 6:16 pm) Here's the procedure if you are interested: REMOVAL Remove or disconnect the following: 1. Make sure the lever is in the center or "Off" position. 2. Negative battery cable. 3. Disable the SIR system. (Supplemental Inflatable Restraint ) 4. Inflator module. 5. Tilt wheel lever. 6. Horn contact (if equipped with SIR). 7. Horn pad assembly (if not equipped with SIR). 8. Steering wheel nut. 9. Steering wheel using a steering wheel puller. 10. Knee bolster. 11. Loosen steering column bracket nuts. 12. Two TORX(R) head screws from lower column cover. 13. Lower column cover. Tilt cover down and slide back to disengage locking tabs. 14. Two TORX(R) head screws from upper column cover. 15. Steering column lock set. 16. Upper column cover. 17. Two wire harness straps from steering column wire harness. 18. Retainer CPA (Connector Position Assurance) and connector from BTSI. (Brake Transmission Shift Interlock ) 19. Steering column bulkhead connector from vehicle wire harness. 20. Gray and black connectors of switch from column bulkhead connector. 21. Two TORX(R) head screws on switch. 22. Multifunction turn signal/hazard switch. INSTALLATION CAUTION: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion Inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems. Install or connect the following: 1. Multifunction turn signal/hazard switch. o Use small blade screwdriver to compress electrical contact and move multifunction switch into position. o Electrical contact must rest on cancelling cam assembly. 2. Two TORX(R) head screws on switch. Tighten to 6 Nm (53 inch lbs.) . 3. Gray and black connectors of switch to column bulkhead connector. 4. Steering column bulkhead connector to vehicle wire harness. 5. Connector and retainer CPA to BTSI. 6. Two wire straps on steering column wire harness. 7. Upper column cover. 8. Steering column bracket nuts. Tighten to 30 Nm (22 ft. lbs.) . 9. Knee bolster. 10. Steering column cylinder lock set. 11. Two TORX(R) head screws to upper column cover. Tighten to 1.4 Nm (12 inch lbs.) . 12. Lower column cover. 13. Two TORX(R) head screws to lower column cover. Tighten to 6 Nm (53 inch lbs.) . 14. Make sure the lever is in the center or "OFF" position. 15. Steering wheel onto the steering shaft. 16. Steering wheel nut. Tighten to 40 Nm (29 ft. lbs.) . 17. Horn pad assembly (if not equipped with SIR). 18. Horn contact (if equipped with SIR). 19. Inflator module. 20. Tilt wheel lever. 21. Negative battery cable. 22. Enable the SIR system (if equipped). |
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