What I found out about DPF lights and turning the key

I was fixing a friend's diesel van last week. The DPF light was on, but we didn't have a code reader. I tried switching the ignition off and on three times. The light turned off after that. Is this a common thing, or did I just get lucky?

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3 Comments

kevinc526mo ago

Heard that's a band-aid fix for DPF lights, so enjoy it while it lasts.

2

grace9226mo ago

Noticing how this happens with everything now. People just want the warning light to go off without fixing what made it turn on. See it with cars, house repairs, even people ignoring health stuff until it's a real problem. We're all so trained to look for the quiet button instead of dealing with the actual noise. Makes you wonder what big thing we're all putting a band-aid on while the engine's actually messed up.

8

ryantorres6mo ago

Yeah, cycling the key like that can turn off the light for now, but @kevinc52 is right about it being a band-aid fix. You should scan for codes to find the real issue, or it'll probably come back.

2