Electrical System Fault Analysis Cases
Complete database of electrical system problems including battery issues, charging system failures, lighting problems, and sensor diagnostics.
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2000 Chevy Cavalier Rear Window Defogger Issue
2000 Chevrolet Cavalier
The owner reports that the rear window defogger is not functioning. They have already replaced the switch and checked all fuses, confirming power comi...
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1996 Chevy Lumina Tail Lights and I/P Panel Lights Issue
1996 Chevrolet Lumina
The owner's daughter is home for Christmas break and is experiencing issues with the tail lights, license plate light, front parking lights, and instr...
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Driver's Side Fog Lamp Not Receiving Voltage
1988 Mercedes 300CE
The vehicle owner reports that the driver's side fog lamp is not receiving voltage, despite the bulb being functional and the passenger side fog lamp ...
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1984 Jeep Wrangler Dimmer Switch Modification
1984 Jeep Wrangler
The owner of a 1984 Jeep Wrangler is looking to modify the floor-mounted dimmer switch due to difficulty accessing it with larger feet. They want to i...
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2000 Dodge Dakota Electrical Problems
2000 Dodge Dakota
The owner reports multiple electrical issues: the power door locks stopped working, followed by the intermittent wipers and dome lights. Currently, th...
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1987 Ford F-150 Left Turn Signal Diagnosis
1987 Ford F-150
The owner reported that after fixing the high and low beam issues on their 1987 Ford F-150, the left turn signal started malfunctioning. It blinks at ...
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1999 Mitsubishi Galant Anti-theft System Lockout Issue
1999 Mitsubishi Galant
The owner recently purchased a 1999 Mitsubishi Galant that was in poor condition and wouldn't start due to a dead battery. Upon replacing the battery,...
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2001 Cadillac STS HID Headlight System - Ballast Replacement
2001 Cadillac Seville STS
The passenger side low beam headlight of my 2001 Cadillac Seville STS has stopped working. Initially, I thought it was just a bulb issue, but I discov...
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Chevy Security Light On After Key Fob Loss
unknown Chevrolet unknown
The vehicle owner from the Czech Republic is experiencing an issue with their Chevrolet, which is now in SECURITY mode after losing their key fob. The...
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1996 GMC Jimmy Brake Light Issue Analysis
1996 GMC Jimmy
The brake lights on my 1996 GMC Jimmy are not functioning properly. While the high mount brake light works when the brake is depressed, the lower brak...
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1986 Pontiac Firebird Charging System Diagnosis
1986 Pontiac Firebird
The owner of a 1986 Pontiac Firebird reports persistent charging issues despite multiple replacements of the battery and alternator. The vehicle consi...
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2001 Volkswagen Jetta Alternator Not Charging
2001 Volkswagen Jetta
The owner reports that their 2001 Volkswagen Jetta is experiencing charging issues. Initially, the alternator puts out 13.8 to 14 volts when the engin...
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1999 Ford Taurus Electrical Light Malfunction Diagnosis
1999 Ford Taurus
The owner of a 1999 Ford Taurus with 82,000 miles reports a malfunction with the vehicle's lighting system. When switching to the parking lights, noth...
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1999 Ford Taurus Dome Light Electrical Issue
1999 Ford Taurus
The owner reports that the dome light in their 1999 Ford Taurus is not functioning properly. The light sometimes turns on when the doors are opened, b...
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1997 Chevy Lumina PCM Location and Issues
1997 Chevrolet Lumina
The owner of a 1997 Chevy Lumina with a 3.1L engine is seeking information about the location of the Powertrain Control Module (PCM). They reported hi...
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2001 Kia Rio P0172 Error Code Diagnosis
2001 Kia Rio
The owner reports a 2001 Kia Rio LS TOP experiencing a check engine light with error code P0172, indicating a rich fuel condition. Recent repairs incl...
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P0336 Code Diagnosis for 2003 Pontiac Bonneville
2003 Pontiac Bonneville
The owner of a 2003 Pontiac Bonneville reports a persistent P0336 code, indicating a crankshaft position sensor issue. They had the vehicle serviced a...
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2002 Buick Regal Instrument Cluster Malfunction
2002 Buick Regal
The owner reports that the odometer, PRND indicator, and trip meter are completely dark. This issue began as an intermittent blackout and has since be...
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