[Shop-talk] Turn the engine off

[Jim Juhas]

John,

That is how I did it with our 2024 Mazda 3 when attempting to program 
new TPMS sensors.

As an aside, at least some cars stay in this accessory mode for a 
limited time. We once took an earlier Mazda to a drive in movie 
(Remember those? A few do still exist!)  and the modern technique is to 
play the sound on your car's FM radio. When the system times out, the 
system needs to be recycled, and the automatic lights and the interior 
lights come on. Kind of kills the mood and annoys your neighbors.

Jim


On 10/22/2025 11:49 PM, Moose wrote:
> John,
>
> If I'm understanding what you are asking, you need to run the car in 
> 'accessory mode' only.  That means all systems on, but the engine 
> isn't running.
>
> Normally, in keyless cars, you just hit the 'start' button without 
> pressing the brake.  The same thing to shut off this mode.
>
> I don't know if that is what you are asking, if not, let me know.
>
> Moose
>
>
>
> From: John T Blair <jblair1948 at cox.net>
> To: "shop-talk at autox.team.net" <shop-talk at autox.team.net>
> Date: 10/22/2025 23:11
> Subject: [Shop-talk] Turn the engine off
> Sent by: "Shop-talk" <shop-talk-bounces at autox.team.net>
> ------------------------------------------------------------------------
>
>
>
> I've just run into this problem twice now in the last month.  I have a 
> ODB II scanner, a Actron CP9680 I bought back in 2021.  A couple of 
> weeks ago I tried to read the codes on a late model KIA and to day on 
> a 2018 Cadillac.
>
> When I plugged the scanner in to both cars, it displayed turn the 
> engine off.
>
> Well both of these cars had keyless ignitions.  So does anyone know 
> how do you turn off the ignition on a keyless system?
>
> JohnT,
>
>
>
> John T. Blair  WA4OHZ email: jblair1948 at cox.net
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