Find car & appliance error codes

Look up a code to understand the warning and find the next checks for your car or appliance.

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47 guides

Open maintenance booklet, pen and car key on a counter overlooking a workshop bay.

Cars & OBD · P0014

P0014 Code: Exhaust Camshaft Timing and What to Check

P0014 points to exhaust camshaft timing on Bank 1. Check the oil information and recent repair history, then have the timing fault diagnosed before replacing parts.

Detached oxygen sensor with a threaded metal body, cable and electrical connector.

Cars & OBD · P0141

P0141 Code: Bank 1 Sensor 2 Heater Circuit Checks

P0141 points to the oxygen sensor heater circuit at Bank 1 Sensor 2. Confirm the sensor location and test its circuit before buying a replacement or blaming the catalytic converter.

Engine oil dipstick beside a folded cloth and plain oil container.

Cars & OBD · P0011

P0011 Code: Camshaft Timing, Oil Checks and Diagnosis

P0011 concerns camshaft A timing or system performance on Bank 1. Check the vehicle-specific oil instructions and preserve the scan before choosing a repair.

Detached metal catalytic converter resting on a workshop bench.

Cars & OBD · P0430

P0430 Code: Bank 2 Catalyst Efficiency and What to Check

P0430 reports low catalyst-system efficiency on Bank 2. Save the complete scan and check vehicle-specific test results before approving a converter replacement.

Wired diagnostic code reader, connector, blank notebook and pen on a workbench.

Cars & OBD · OBD2

How to Read OBD2 Codes Without Losing Diagnostic Information

Read the complete code, keep its status and save the freeze frame before clearing anything. A useful scan starts with the right tool and vehicle details.

Dark blue sedan parked outside a vehicle workshop.

Cars & OBD · P0172

P0172 Code: System Too Rich on Bank 1 and What to Check

P0172 means the engine has detected a rich fuel-system condition on Bank 1. Save the scan data and use vehicle-specific tests before replacing parts.

Diagnostic scanner displaying P0133, Bank 1 Sensor 1 and Slow response beside a blank service note.

Cars & OBD · P0133

P0133 Code: Slow Oxygen Sensor Response on Bank 1

P0133 reports slow oxygen-sensor response on bank 1 sensor 1. Confirm engine-specific tests and applicable software before replacing the sensor.

Rear wheel and lower body of a pickup parked on gravel.

Cars & OBD · P0446

P0446 Code: EVAP Vent Control and Model-Specific Checks

P0446 concerns EVAP vent control. Keep the manufacturer’s full code description and test the correct circuit or system before replacing a valve.

Folded towel and an unused thermometer on a laundry worktop.

Home appliances · tE

LG Washer tE Code: Temperature Sensing and Safe Next Steps

LG tE concerns temperature sensing or heating control. Check the exact display and model instructions, then seek service if the warning persists.

Have the code but not the model?

Start with the brand and the full message on the display. Each guide identifies the appliances or vehicles it covers, so you can check the match before following any steps.

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