Electrical buzzing noise under dash; Relay?
Thread Starter
Member
Joined: Aug 2015
Posts: 183
Likes: 2
From: Florida
Year: 2001
Model: Cherokee
Engine: 4.0
So only when Im driving on the higher side of highway speeds do I hear a buzzing sound near driver kick panel.
Thinking maybe a relay. Found only one near the area; pictured below.
Any idea if this could be the source? If so, why and wth does it do?
Would like to figure this out before putting my dash back together.
LMK thoughts
TIA
Thinking maybe a relay. Found only one near the area; pictured below.
Any idea if this could be the source? If so, why and wth does it do?
Would like to figure this out before putting my dash back together.
LMK thoughts
TIA
Thread Starter
Member
Joined: Aug 2015
Posts: 183
Likes: 2
From: Florida
Year: 2001
Model: Cherokee
Engine: 4.0
Google says part # 56021551 is a turn signal relay. Search for 'Cherokee turn signal relay buzzing'. Seems to be a common problem.
Skip ahead to the 15 second mark. I found that searching for 'turn signal relay buzzing'.
Skip ahead to the 15 second mark. I found that searching for 'turn signal relay buzzing'.
So only when Im driving on the higher side of highway speeds do I hear a buzzing sound near driver kick panel.
Thinking maybe a relay. Found only one near the area; pictured below.
Any idea if this could be the source? If so, why and wth does it do?
Would like to figure this out before putting my dash back together.
LMK thoughts
TIA

Thinking maybe a relay. Found only one near the area; pictured below.
Any idea if this could be the source? If so, why and wth does it do?
Would like to figure this out before putting my dash back together.
LMK thoughts
TIA

Thread Starter
Member
Joined: Aug 2015
Posts: 183
Likes: 2
From: Florida
Year: 2001
Model: Cherokee
Engine: 4.0
Very strange, never has it once ever made the noise using the turns or hazzards. Only 70+ MPH.
Doesnt sound like that.
Also, it doesnt buzz at that rate. As fast as you can read; bzzz, bzz, bz ,bz, done...
Doesnt sound like that.
Also, it doesnt buzz at that rate. As fast as you can read; bzzz, bzz, bz ,bz, done...
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CF Veteran
Joined: Jun 2017
Posts: 2,215
Likes: 635
From: Hangover, PA
Year: 1998
Model: Cherokee(XJ)
Engine: 4.0L
Funny you should post this. I have a 98 XJ and this happened to be the other day with my left turn signal. not quite as loud or fast but I can hear it and my left signal wouldnt work unless I flipped it off then back on. that did the trick. it happened once when I first got the vehicle then hasnt happened for awhile then a few times in one day the other day
Senior Member
Joined: Jan 2017
Posts: 799
Likes: 4
From: usa
Year: 2000
Model: Cherokee
Engine: 6 cylinder
My XJ does this every great once in a while and only when i have one of the blinker directional lights on.
If this only happens when you turn on the directional lights then replace the directional blinker relay and call it a day.
If this only happens when you turn on the directional lights then replace the directional blinker relay and call it a day.
Senior Member
Joined: May 2014
Posts: 777
Likes: 5
From: Nolensville, TN
Year: 1998
Model: Cherokee
Engine: 4.0
jiggle your turn signal stalk next time it does it, see if it goes away. Also try turning on your turn signal to see if that has an effect. My 99 did that and I had to replace the multifunction switch.
Thread Starter
Member
Joined: Aug 2015
Posts: 183
Likes: 2
From: Florida
Year: 2001
Model: Cherokee
Engine: 4.0
Happens too fast
replace the directional blinker relay and call it a day.


