Aux Battery Cables

[mbrose1994]

I suppose it'll work, but it's a strange way to do it without advantage. Also, the N2 terminal connector on the CR[an]K battery positive cable isn't keyed for N1.

Yes, works perfectly.
Did discover the real issue was my CAN bus star connector under the glove box. New part $65, replaced in less than 10 minutes. All the "electrical storm" behavior is gone!

The advantage is simple, total, absolute electrical separation from Jeep's Rube Goldburg AUX batt design.
No remove/replace the right front fender.
No remove/reinstall PCM box.

Just disconnect and tape off (electrical tape) all (1 NEG, 2 POS) AUX batt cable ends.
Leave CRK batt POS cable end on N2.
Jump N2 to N1.
Done.
Jeep life is good again.

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[THAW]

Yes, works perfectly.
Did discover the real issue was my CAN bus star connector under the glove box. New part $65, replaced in less than 10 minutes. All the "electrical storm" behavior is gone!

The advantage is simple, total, absolute electrical separation from Jeep's Rube Goldburg AUX batt design.
No remove/replace the right front fender.
No remove/reinstall PCM box.

Just disconnect and tape off (electrical tape) all (1 NEG, 2 POS) AUX batt cable ends.
Leave CRK batt POS cable end on N2.
Jump N2 to N1.
Done.
Jeep life is good again.

I'm glad you got your CAN bus issues fixed!

But again, the jumper is entirely unnecessary to achieve your above-listed goals. You removed the factory connection between N3 and N1, only to essentially recreate it elsewhere.