I am a firm believer in circuit protection. Especially when we want to protect our investment in these 24 volt jeeps. 24V makes a bigger smoke cloud very much faster than a 12 volt system. At over $700 a harness whay would anyone not protect their wiring and their jeep?
Joined: Nov 27, 2016 Posts: 58 Location: Washington DC
Posted: Mon May 01, 2017 9:38 am Post subject:
I'm getting ready to install the circuit breakers on my M38A1, and I've run into another question. My wiring harness has a wire, marked 11, that according to the wiring diagrams in TM 9-8014 is connected to the ignition switch. However, in reviewing wiring diagrams for the M38, I see that wire 11 runs from the ignition switch to the first breaker, and then from the first breaker to the second, and from the second to the third.
For my M38A1 wiring harness, do I simply ignore the wire marked 11, and put a bag around it with a zip tie?
I showed #10 going all the way across to the switch which is out of site because 10 supplies power to the three CB's and the ignition switch. It becomes #11 at the switch pig tail that is marked 11.
Wire 11 provides power to your ignition switch for wire #12 that powers the coil. You must connect 11 to the end of 10.
In this early m38 diagram wire # 11 is simply picking up power at the last CB that wire #10 supplied with power.
Something else for you to think about is that center CB is for the light switch power feed. The old early M38 light switches did not have a built in CB. The later switches all do so you can actually use that 15 amp CB for another accessory.
You must realize that the individual system wiring diagrams do not show all the wires that connect to those CB's.
This one shows wire # 15 going from the center CB to the light switch.
What you will actually end up with is:
Wire # 10 going to a dual connector to feed both wire # 11 at the ignition switch and wire # 15 to the main light switch. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
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