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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1998 Jaguar XJ8 Dead Battery Diagnosis
1998 Jaguar XJ8
The owner of a 1998 Jaguar XJ8 is experiencing a dead battery located in the trunk, with no access to the trunk due to a missing key. The cigar lighte...
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2003 Jeep Wrangler Gauge Light Issue After Alternator Short
2003 Jeep Wrangler
The owner accidentally shorted the alternator while working on the engine, resulting in a damaged regulator casing. After testing the alternator under...
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2006 Toyota Tundra Gauge Cluster Backlight Issues
2006 Toyota Tundra
The gauge cluster backlight and A/C knob lights on my 2006 Toyota Tundra are completely out. I tried adjusting the dimmer switch and checking the fuse...
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2005 Subaru Legacy Backup Lights Electrical Issue
2005 Subaru Legacy
The owner of a 2005 Subaru Legacy (non-turbo, automatic) reports that the backup lights are not functioning. They've replaced fuses #18 and #8, and ch...
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2000 Honda Civic Engine Light Diagnosis
2000 Honda Civic
The owner reports that the engine light illuminates after driving for about 15 minutes, once the engine reaches normal temperature. The light turns of...
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1991 Toyota Pickup Speedometer Diagnostic
1991 Toyota Pickup
The owner of a 1991 Toyota Pickup is experiencing issues with the speedometer not functioning. They have already checked the fuses without success and...
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1998 Cadillac STS Intermittent Check Engine Light Issue
1998 Cadillac STS
The owner has been experiencing an intermittent check engine light on their 1998 Cadillac STS for over a year. They report that the vehicle shows code...
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2006 Dodge Ram Fog Lights Not Functioning
2006 Dodge Ram
The fog lights on the 2006 Dodge Ram have stopped working. The owner checked for power at the plugs and confirmed there is power. The dashboard indica...
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1981 Toyota Pickup Oxygen Sensor Diagnosis
1981 Toyota Pickup
The owner attempted to replace the oxygen sensor on their 1981 Toyota Pickup SR5 but couldn't locate it. They noticed a blank spot on the intake manif...
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1998 Saturn SC2 Electrical Issue Diagnosis
1998 Saturn SC2
The owner of a 1998 Saturn SC2 reports intermittent electrical issues. The dome light, power outlet, door lock/unlock button, emergency flasher, and p...
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2003 Dodge Intrepid Battery and ABS Light Issues
2003 Dodge Intrepid
The owner reports that their 2003 Dodge Intrepid was running well until the battery light illuminated, followed by the ABS light while driving. The ra...
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Turn Signal Failure with Intermittent Function
1999 Volvo S70
The owner of a 1999 Volvo S70 reports that the left and right turn signals function for about 30 seconds before stopping completely. However, the haza...
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1988 Volvo 240 No Brake Lights Diagnosis
1988 Volvo 240
The owner of a 1988 Volvo 240 reports that the brake lights are not functioning despite cleaning the sockets, changing the bulbs, and checking the bra...
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Brake Lights, Battery, and Speedometer Issues in 97 Altima
1997 Nissan Altima
The owner of a 1997 Nissan Altima reports that after a mechanic fixed the brake lights that wouldn't turn off, the battery light and brake light are n...
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4WD Transmission Self-Selecting Issue Diagnosis
unknown Hyundai unknown
The owner reports that both 4x4 lights on the dash illuminate unexpectedly, and engine RPMs increase, then drop when the lights go off. A mechanic has...
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Persistent Engine Light After Refueling
2005 Honda Accord
The owner of a 2005 Honda Accord 6-cylinder sedan reported that after refueling at a no-name gas station during a road trip, the engine light illumina...
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2006 Jeep Cherokee Fog Light Diagnostics
2006 Jeep Cherokee
The owner of a 2006 Jeep Cherokee reports that the fog lights are not functioning. They initially did not have a relay or fuse in position #15, which ...
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1998 Honda CRV Electrical Problem Diagnosis
1998 Honda CRV
The owner reports an electrical issue with their 1998 Honda CRV, particularly concerning the battery and alternator functionality. Symptoms include th...
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