Major issues

RHO15

MEMBER
2005 JEEP GRAND CHEROKEE
5.7L
V8
4WD
AUTOMATIC
165,000 MILES

The main issue is that the brake lights (including the top one) on the passenger side don't work. Changed the bulbs out and still nothing. The airbag light is constantly coming on. Even when driving. The defroster on the passenger side stop working. The heat on the passenger side doesn't work anymore. It blows out cool air. I'm assuming one of the fuses is blown because now the lights where the A/C and heat controls are don't come on anymore. So, at night time I have to turn on the internal lights just to adjust the controls. What is going on? What is causing all these problems?

Tuesday, June 18th, 2019 AT 11:21 AM

2 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon,

I attached a wiring diagram for you to view. You need to check all the fuse in the under hood fuse block with a test light or voltmeter for power on both side. The fuse block is a common failure but needs to be confirmed.

As far as the airbag light, I need the code that is set for that system. That is a separate issue.

Roy

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Tuesday, June 18th, 2019 AT 1:10 PM

KEN L

MASTER CERTIFIED MECHANIC
50,321 POSTS

If I can jump in here, it sounds like the TIPM module is out which is common. Here are instructions to replace it. It self initializes so replacement is easy. Check out the diagrams (below). Please let us know what happens.

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