Odd Diagnostic Code C0547 04 (CIM) but no symptoms.

[sgould]

I just ran a check of the diagnostic codes, for no reason really, but because I was there.  I got C0547 04.  This is described as an ignition switch circuit fault, along with the statement "Message appears on dashboard.  Engine will not start".

However, there is no message, and the engine starts with no problem.  The code is not a pending code.  So I'm a bit confused.  Maybe I just need to keep an eye on the ISM?

[Audax]

Does it reappear after you clear it?

[aerojon]

C0547 is a fault in the ISM-SCL circuit.That includes the CIM..

[sgould]

I'll have to check if it reappears, I only found it this afternoon and we are not using the car again until tonight.

[Audax]

I vaguely recall seeing stored codes for this kind of thing in the past and no apparent fault, they didn't return after clearing so perhaps a momentarily bad contact or something could raise it.

[sgould]

Finally, after a period of post vaccination gloom, I have checked the code and it hasn't reappeared in the fortnight since, so i'll put it down to a glitch.