Electrical problems. Radio, gauges, and windows won’t work while on

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Jan 22, 2020 | 07:04 PM

#11

hummerz

Senior Member

Joined: Jul 2012

Posts: 8,999

From: C-Town

Quote:

Originally Posted by xxbigjohn79xx

Also I noticed that the dimmer lights seem to go on and off on their own and somewhat seem
to
completely stay on

What aftermarket accessories have been installed?

Jan 22, 2020 | 07:27 PM

#12

xxbigjohn79xx

Thread Starter

Junior Member

Joined: Nov 2018

Posts: 9

From: Texas

Quote:

Originally Posted by hummerz

What aftermarket accessories have been installed?

nothing besides an aftermarket radio last year

Jan 22, 2020 | 07:37 PM

#13

hummerz

Senior Member

Joined: Jul 2012

Posts: 8,999

From: C-Town

Any signs of water intrusion? You should eliminate those lights for now before you ruin the battery.

Jan 22, 2020 | 07:50 PM

#14

xxbigjohn79xx

Thread Starter

Junior Member

Joined: Nov 2018

Posts: 9

From: Texas

Quote:

Originally Posted by xxbigjohn79xx

nothing besides an aftermarket radio last year

yes actually there has been a water leak I haven’t been able to track for a while, front driver side floor

Jan 22, 2020 | 08:03 PM

#15

hummerz

Senior Member

Joined: Jul 2012

Posts: 8,999

From: C-Town

Water is not good for connections and modules! Stop the leak, dry it out, and clean the connections and bcm. In the meantime eliminate any battery draw, and check all fuses.

Jan 23, 2020 | 07:13 AM

#16

MixManSC

Senior Member

Joined: Jan 2017

Posts: 2,320

From: SC

Agreed - the BCM (body control module) is basically up against the firewall behind the left dash vent, light switch, etc. NOT easy to remove/replace and you do not want water getting into it. I still suspect it could be the ignition cylinder switch or a ground problem. Could be one of the grounds in the dash, down by the kick panel, under the drivers door against the frame, etc.

Feb 6, 2023 | 06:12 PM

#17

BooYde

Junior Member

Joined: Feb 2023

Posts: 1

Did you every figure out the electrical problem? I’m having the same issue.

Did you every figure out the electrical problem? I’m having the same issue

Quote:

Originally Posted by xxbigjohn79xx

They just turned off at once all of a sudden. While engine cranked they will not turn on, if you just turn the key forward one notch to engage they will be functional but once I turn the car on they completely shut off and the battery and ABS light turn on. I’ve heard that the h2 has common electrical problems just wondering if any of y’all have encountered this and what did you did to fix the problem . Thanks in advance ! John

Feb 7, 2023 | 11:45 AM

#18

Gavin Costigan

Senior Member

Joined: May 2020

Posts: 625

From: North GA

Inspect and test the wiring going from the door to the car. It seems possible there may be an issue there as well as with the door switches themselves on the door. Probably worth a check since they sometimes get wet and are known to go bad, and because the windows work from the back.