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$06 engine code


mikarmil

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Posted

Engine runs and idles good but Check engine light is one and sets the above code.  What needs to be fixed?

Posted
15 hours ago, mikarmil said:

Engine runs and idles good but Check engine light is one and sets the above code.  What needs to be fixed?

Welcome to the site.

 

I would go ahead and set up an appointment with the dealer.

 

Mode $06 is one of the nine diagnostic modes that is part of the OBD2 onboard diagnostics system on all 1996 and newer vehicles… which can be easily scanned with professional OBD2 scanner.

As originally created, Mode $06 was not designed for use by technicians. It was supposed to be “hidden” data used by the OBD2 system to find faults and configure fault codes.

It was not supposed to be a readily accessible scantool data for evaluating the operation of various components in the engine management and emission control systems.

Consequently, many older scan tools lacked the capability to access and display Mode $06 data. But as time went on, some very tech-savvy technicians discovered that Mode $06 contained a plethora of useful diagnostic information. It turned out to be the ultimate of diagnostic information — provided you can figure out how to read and use it.

Before we go any further, we should say that few counter professionals will ever use Mode $06 to assist a customer analyze a Check Engine light. Most of the scanners that parts stores employees typically use to perform plug-in diagnostic checks on customers’ cars are basic code fault readers or entry-level scanners.

So many of these diagnostic tools can’t even access Mode $06. But even if you have a scanner that has Mode $06 ability, it’s doubtful you would ever have the need to delve that far into the on-board diagnostics. That level of troubleshooting is best left to a professional mechanic with a lot of experience and know-how in scantool diagnostics arena.

With that said, it’s helpful to be aware of Mode $06 and how a mechanic can use it to troubleshoot a Check Engine light that comes back on after repairs have been made. In fact, if a technician knows how to use Mode $06 to look for specific types of faults, they can usually keep the MIL (Malfunctioning Indicator Lamp) out and prevent unnecessary comebacks.

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