ZJ Grand Cherokee PCM and BCM Electrical problems Part 2 of 2

ZJ Jeep Grand Cherokee electrical PCM (Power Control Module) and BCM (Body Control Module) electrical problems troubleshooting and solutions, battery drain solutions.

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Parts list:

Design Engineering 010480 Cell Saver Battery Insulation Kit;

Thick girls Decal;

Mega Fuse/ Maxi fuse, In-Line MAXI Fuse Holder with Cover - 32V/60A - #6 Wire Leads

Fuse box/power distribution block

[martinrice]

Excellent video! I’ve had several ZJs over the years and have experienced these subtle batt drains before. This is the first time I’ve ran across discussion on this. Even with the quirks, ZJs are great and I way prefer them over these new disposable push- button vehicles in production today. Embarrassed to admit, but I’ve got 4 of them scattered around and still in-service.

[christopherrobbins]

Loved part one and two! My son has a 1997 ZJ with the same battery draw issue and was told it was the BCM. Where did you order yours, if you don’t mind? I can’t find one online anywhere! Thanks!

[Hornet_Legion]

Is the body control module voltage fed through the power control module?

[stevenyoung]

Is there anyway to keep the original mileage with the new body control module

[FastasFox]

I'm going to say one of your door switches is bad for the dome light. Or a broken wire in the driver door under the black boot.

[codylucas]

I'm having roughly the same issues.

[dylanlesh]

I'm having issues with my body control module has good ground but can't get any codes pin 16 came up on the obd2 and that leads up to my fuse box to fuse 17it runs just fine then I put it in gear to drive it and it won't accelerate also when I hit the gas in park it doesn't want to reb up like it should also have no gauges working please help I'll give you my number if you need it to make things easier also it's a 98 jeep grand Cherokee

[FastasFox]

I'm going to say one of your door switches is bad for the dome light. Or a broken wire in the driver door under the black boot.