Mirror compass memory inop

Discussion on body issues/mods, appearance, interior/trim, and detailing (i.e. how to keep your car looking showroom new, or a reasonable facsimile thereof...).
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HoldOn SV

Mirror compass memory inop

Post by HoldOn SV »

Other than checking/updating BCM software, any thoughts/experience for 2011-2013 rear view mirror not retaining compass memory?
Calibration completes successfully. https://drive.google.com/file/d/1i3Fqgw ... p=drivesdk
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: Mirror compass memory inop

Post by s/c'd cav »

does the mirror have 12v at the plug when off ?

i cant find a schematic for the inside mirror , so im not sure if they are supposed to or not
smwalker
Administration Staff
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Joined: Mon Jul 29, 2013 1:44 am
Location: Azusa,CA

Re: Mirror compass memory inop

Post by smwalker »

Only power at the mirror is curcuit 1339 that gets shared with the SIR system. And it is ignition so there must be a capasitor in the mirror that holds memory.

https://www.chiltonlibrary.com/content/ ... 662802.pdf
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White
HoldOn SV

Re: Mirror compass memory inop

Post by HoldOn SV »

Y'all are awesome. I have an undiagnosed SIR fault, so that's probably the issue.
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