After I removed the lower panel bypassed the NSS it didn't start so I removed the lower dash to trace it back to the ignition as well as disassembling the connectors and confirming the wires. I rechecked the voltage at the x27 plug and got 10V at the center pin with the key on to #2 position. I then plugged it in an it started from the key in the ignition.

I "think" I had the x27 plug disconnected after jumping the NSS. Now that it works, it indicates a bad NSS so I'll test it with a another switch...

In retrospect it may be better to jumper the NSS before the K38 as it's somewhat easier to access. I read it's good to jumper it anyway to prevent future failure so no time lost.

Next time the x27 12V bypass works, I'll check these in this order until it starts: 12V at Battery > Replace #5 fuse > test voltage or at both sides of fuse > key turned right while moving gear selector > jumper NSS X/92 plug #3 & #4 receptacles > jumper K38 relay at pins 30 & 87 > ignition switch

Hope this helps someone in the future...

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