Electrical System Fault Analysis Cases

Complete database of electrical system problems including battery issues, charging system failures, lighting problems, and sensor diagnostics.

2009 VW Jetta Alternator and A/C Belt Replacement
2009 Volkswagen Jetta
The owner wants to replace the alternator and A/C belt on their 2009 Volkswagen Jetta with a 2.5L engine. They are unsure if the belts can be replaced...
Volkswagen Jetta Belt Replacement
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2005 Nissan Altima Catalytic Converter Diagnosis
2005 Nissan Altima
The vehicle owner was informed by a dealer that the 'check engine light' was on and that a new catalytic converter was needed urgently, approximately ...
catalytic_converter check_engine_light oxygen_sensor
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Hissing Noise After Jumping Dead Battery
2010 Honda CR-V
This morning, the owner found their 2010 Honda CR-V with a completely dead battery. After successfully jumping it, the vehicle took a long time to cha...
Honda CR-V AC system
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Check Engine Light On After Oil Change
1999 Honda Accord
The owner of a 1999 Honda Accord LX had an engine oil change performed at a small shop. Following the oil change, they noticed a burning smell in the ...
Honda Accord O2 Sensors
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Clicking Noise in Park - Possible Electrical Issue
2000-2006 Ford Expedition
The vehicle owner describes a loud clicking noise coming from the engine compartment while the Ford Expedition is in park. This noise occurs every 5 t...
Ford Expedition clicking noise
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1992 GMC C1500 Air Conditioning Electrical Diagnosis
1992 GMC C1500
The owner of a 1992 GMC C1500 reports issues with the air conditioning system. They noted that the compressor is not engaging, despite using a freon r...
GMC C1500 air conditioning
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1990 Cadillac Deville Emissions Failure Diagnosis
1990 Cadillac Deville
The owner reports that their 1990 Cadillac Deville is failing smog tests, running significantly richer than the allowed limits. The vehicle's emission...
Cadillac Deville emissions
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2011 Chevrolet Impala Battery and Electrical Issues
2011 Chevrolet Impala
The owner replaced the battery in their 2011 Chevrolet Impala, but now all lights and fluids are cycling on and off. The vehicle won't start, and the ...
Chevrolet Impala battery
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Electrical System Malfunction After Disassembly
2016 Honda Civic EXT
The owner disassembled parts of their 2016 Honda Civic EXT to run wires under the center console and unplugged the economy mode, electronic parking br...
Honda Civic Electrical System
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2008 Dodge Caravan Interior Light Issue Diagnosis
2008 Dodge Caravan
The owner of a 2008 Dodge Caravan reports that none of the interior lights are functioning. The problem was persistent, and despite initial troublesho...
Dodge Caravan BCM
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2008 VW GTI Headlight Malfunction Diagnosis
2008 Volkswagen GTI
The owner reports that the left low beam headlight of their 2008 VW GTI is malfunctioning. Initially, the driver side headlight flickered but would st...
Volkswagen GTI bi-xenon headlights
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2008 Chevrolet Aveo TPMS Light Malfunction
2008 Chevrolet Aveo
The TPMS light on my 2008 Chevrolet Aveo flashes after starting and stays solid after a minute. Typically, this indicates low tire pressure, but all t...
TPMS sensor diagnostics
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Intermittent Stalling at Red Lights
unknown Kia unknown
The vehicle owner reports that their Kia has been stalling randomly at red lights over the past two weeks. The stalling occurs only after the engine h...
Kia stalling vacuum leak
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ABS and Traction Control Light Diagnosis
2007 Pontiac G6
The owner of a 2007 Pontiac G6 with a V6 engine reports that the ABS and traction control lights illuminated after replacing the wheel bearings due to...
ABS traction control wheel speed sensor
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2005 Honda Civic Hybrid EPS Light Issue
2005 Honda Civic Hybrid
The owner recently purchased a 2005 Honda Civic Hybrid. Initially, everything was fine until they experienced issues starting the car after turning on...
Honda Civic Hybrid EPS light
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2005 Mercedes Benz E220 Battery Warning Diagnosis
2005 Mercedes Benz E220
The owner reports a persistent red battery warning light on the dashboard with a message to visit the workshop. They have already checked the V-belt o...
Mercedes Benz E220 battery warning
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2006 Hyundai Tiburon Turn Signal Light Issue
2006 Hyundai Tiburon
The owner reports that the right turn signal light on their 2006 Hyundai Tiburon is stuck on, flashing at a normal rate. They can hear the turn signal...
turn_signal electrical_issue Hyundai_Tiburon
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2006 GMC Sierra A/C Hot Electrical Smell Diagnosis
2006 GMC Sierra
The owner reports a hot electrical smell coming from the vents when the air conditioning is activated. Turning off the A/C and allowing the fan to run...
GMC Sierra A/C
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