1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,567 Posts
Check the instrument cluster and BCM powers and grounds first. Oxidized terminals can cause this and sometimes just by unplugging and replugging a connector will restore a good electrical contact. The power lock cycle may be affecting a dash and/or BCM ground temporarily.
The cluster circuit board may also have fractured solder joints and/or intermittent components.
The cluster circuit board may also have fractured solder joints and/or intermittent components.