Question about Jeep Grand Cherokee

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Day time running light moduleheadlight module

No day time running lights

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  • Jeep Master
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Canada? each county can have diff. DRL parts (LAWS)
no year, cherokee? that make any answer impossible

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

look it up here.

Posted on Feb 09, 2014

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Posted on Jan 02, 2017

tripletauto
  • 1450 Answers

SOURCE: where is the module for

Notes CIRCUIT OPERATION - CANADA
On Canadian vehicles, the low-beam headlamps operate when the ignition switch is in the RUN position and the headlamp switch is OFF.

When the ignition switch is in the START or RUN position, circuit A1 from fuse 15 in the Power Distribution Center (PDC) connects to circuit A21. Circuit A21 powers circuit F18 through fuse 19 in the fuse block. Circuit F18 feeds the Daytime Running Module (DRL) module.

Circuit L20 from the headlamp switch connects to DRL module. Circuit L20 is HOT at all times.

The DRL module receives the vehicle speed sensor input from circuit G7. Circuit G34 from the DRL module provides power for the high beam indicator lamp in the instrument cluster.

Circuit L4 powers the low beams of the headlamps. When the headlamp switch is OFF, the DRL module powers the low beams on circuit L4. When the headlamps are ON, the multi-function switch powers the low beams on circuit L4.

Circuit L3 feeds the high beams of the headlamps. When the operator flashes the headlamps with the stalk of the multi-function switch, the DRL module senses voltage on circuit L3. When it senses voltage on circuit L3, the DRL module stops supplying power to the low beams on circuit L4.

Circuit Z1 provides ground for the DRL module.

Posted on Aug 19, 2008

  • 41 Answers

SOURCE: Day time Running Lights

For those of you thinking, "hey, mine doesn't have daytime running lamps!", it's because only models sold in Canada had them.
The DRL module is located on the front lower side of the power distribution center attached to the bracket .  The PDC is the black box just behind the battery, so it should be kind of sandwiched in there. As far as a diagnosis for them staying on, the manual only provides for info for DRLs that do not come on at all.  If changing the DRL doesn't fix the problem let me know and I will try and get you schematics and connection explanations.

Posted on Dec 14, 2008

wracefans24
  • 1985 Answers

SOURCE: Head lights do not come on

if your sure your jeep has DRL there is a fuse for them

Posted on Nov 28, 2009

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