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Warning Lights

Check engine light on

What it usually is, by vehicle

Pencil sketch of a Mazda3 in a garage
Diagnostics & Repair

P0015 on a 2014-2016 Mazda3: Exhaust Cam Timing, Causes, Fix

JC Landry · Oct 30, 2026
Pencil sketch of a Nissan Pathfinder in a garage
Diagnostics & Repair

P0101 on a 2017-2020 Nissan Pathfinder: MAF Fault, Causes, Fix

JC Landry · Oct 27, 2026
Pencil sketch of a Toyota Camry in a garage
Diagnostics & Repair

P0171 on a 2018-2019 Toyota Camry 2.5L: Lean Code Causes and Fixes

JC Landry · Oct 30, 2026
Pencil sketch of a Chevrolet Equinox in a garage
Diagnostics & Repair

P0299 on a 2018-2021 Chevrolet Equinox 1.5L: Causes and Fixes

JC Landry · Oct 30, 2026

Covered makes

ChevroletFordHondaMazdaNissanRamSubaruToyota

Other warning lights

ABS warning light onEV system warning light onService electronic throttle control messageTemperature gauge in the red or reading highTraction control light onTransmission warning light on

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Ask emanuals.ai about your car

Answers come from the factory manual for your make, model and year, with the page cited. Join the waitlist and we will email you when a spot opens up.