Question about 1999 Chevrolet Suburban

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Headlights will not come on...No battery voltage to headlamps

I checked the head lamps and have no voltage at any of them...parking, brake and tail lights are working. Could it be the switch....there are no relays or fuses for headlamps.

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There is a fuse for it, check very carefully near the driver side or in the hood. it might be the fuse.

Posted on Jun 16, 2009

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05 Pontiac GA, rear lights work brake,turn,reverse,but on both sides,taillights will not work.no idea what could affect both sides & only taillights.changed all bulbs,fuses that i know of didnt help.


Park, Tail and Marker Lamps
The park, tail and marker lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or HEADLAMP position, or anytime the headlights are requested. The PARK LPS fuse in the underhood junction block supplies battery positive voltage to the auto park lamp control relay switch contacts. The PARK LPS fuse in the underhood junction block also supplies battery positive voltage to the auto park lamp control relay coil. When the park lamps are turned on the body control module (BCM) energizes the auto park lamp control relay. Current flow is from the auto park lamp control relay to their respective park and marker lamps and to ground. Ground is provided at G101, G401

Just the back light's - tail lamps ,park lamps , sounds like a wiring problem or faulty connector . Viewing wiring diagrams an testing the electrical circuits is the way to find this problem . Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size . Under system click on lighting ,then click on parking lamps under subsystem . Click the search button then the blue link's . Watch these videos an then test the electrical circuit for the rear park lamps .
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Where is the tail light fuse for a 2010 Cobalt Chevrolet?


Park, Tail and Marker Lamps
The park, tail, and marker lamps, including the license lamps, are turned ON when the headlamp switch is placed in the PARK or HEADLAMP position, or anytime the headlights are requested. The PARK LAMPS fuse in the I/P fuse block supplies battery positive voltage to the PARK LAMP relay switch contacts. The PARK LAMPS fuse in the I/P fuse block also supplies battery positive voltage to the PARK LAMP relay coil. When the park lamps are turned ON, the body control module (BCM) energizes the park lamp relay. Current flow is from the PARK LAMP relay to their respective park and marker lamps and to ground. Ground is provided at G101, G102, G401, and G403.

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1 Answer

Tail lights not working fuse is good bulbs are good. What do I need to check now. 2008 Pontiac G6


What fuse is good ? Did you check fuse in rear fuse box ? Also did you check park lamp relay .
Park, Tail and Marker Lamps
The park, tail, and marker lamps, including the license lamps, are turned ON when the headlamp switch is placed in the PARK or HEADLAMP position, or anytime the headlights are requested. The PARK LAMPS fuse in the rear fuse block supplies battery positive voltage to the PARK LAMP relay switch contacts. The PARK LAMPS fuse in the rear fuse block also supplies battery positive voltage to the PARK LAMP relay coil. When the park lamps are turned ON, the body control module (BCM) energizes the park lamp relay. Current flow is from the PARK LAMP relay to their respective park and marker lamps and to ground. Ground is provided at G101, G102, G401, and G403.
Fuse Block - Rear
Left side of the rear compartment, behind the left rear wheel well

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1 Answer

2000. Where is fuse for tail lights?


Do your headlamps work ?
Park/Marker/License/Tail Lamps
Voltage is applied to the turn/headlamp switch at all times. When the turn/headlamp switch is in the PARK or the HEAD position, voltage is applied to the following components:
?€¢
The park lamps


?€¢
The marker lamps


?€¢
The tail lamps


?€¢
The license lamp

The front marker lamps are grounded through the turn filament of the respective front park/turn lamp. The front marker lamps light as a result.
The automatic lamp control function turns on the park lamps and the headlamps. This action occurs when the ambient light sensor determines that the exterior lamps should be turned ON based on the amount of available light. When the BCM grounds the park lamp relay, voltage is supplied directly to the park lamps, bypassing the turn/headlamp switch assembly. When this action occurs, the following conditions exist:
?€¢
The automatic lamp control relay is grounded.


?€¢
The headlamps turn ON. Refer to Headlights/Daytime Running Lights (DRL) Circuit Description .

The lamps turn OFF when the BCM does not ground the park lamp relay or the automatic lamp control relay. This action is caused by the following conditions:
?€¢
The available light reaches a predetermined level.


?€¢
The ignition switch is turned to the OFF position

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I have a 2007 Chevy HHR..the tail light don't work the bulbs workI have turn signals and brake lights..no owners manual in car. check fuses can't locate the fuse for tail light is there another place


Your talking about the rear park lamps, but, do the front park lamps work?
Note the picture.
Underhood fuse box, 68 is park lamp relay, 69 is park lamp fuse.
26139691-ogmtu0xiyqttvnd1jjcu4dmt-2-0.jpg

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1 Answer

The instrument panel cluster,tail (driving) lamps,& license plate lite do not lite. fuses 9,14,20 are ok. what else could be bad or broke?


Check fuse's #19 ,# 6 #4 check grounds 105 & 107
G107 In the left rear of the engine block next to the knock sensor. G105 In the thermostat housing
The park, tail, marker and license lamps are turned on when the headlamp switch is placed in the PARK or ON position or anytime the headlights are requested. The PK LPS fuse in the IP fuse block supplies battery positive voltage to the park lamp relay and the headlamp switch. The body control module (BCM) provides a ground, or control circuit, to the park lamp relay coil circuit during ALC operation. When the park lamps are turned on during ALC, the BCM energizes the park lamp relay. The park lamps can also be supplied battery positive voltage directly from the headlamp switch. Current flow is to the park, tail, marker and license lamps. The front park and marker lamps are grounded at G100 and G101. The rear park, tail, marker and license lamps are grounded at G400 and G401. If the headlight switch is left in the ON position, the park, tail and marker lamps will remain on until turned off or the battery runs dead.
Check the headlamp switch !

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Grand Prix 2003 first no running lights tail lights or cluster lights. All fuses were good. Changed out the small box under the steering column. Not the chime box. After doing that I had running lights...


Daytime running lamps control module. Fuse #37 - inside the passenger compartment or under hood fuse box ? Do you know how to use a volt meter an wiring diagram to find electrical problems ? You have a direct short to ground or fuse #37 wouldn't blow. Underhood fuse box fuse # 37 is for the park lamps .Supply's B+ voltage to the daytime running lamps module an the headlamp switch plus 37
PARK LP Fuse
20A
Headlamp Switch, Body Control Module (BCM), and Vehicle Interface Unit (VIU)...
Park, Tail and Marker Lamps
The park, tail and marker lamps, including the license lamps, are turned ON when the headlamp switch is placed in either the PARK or HEADLAMP position, or anytime the headlights are requested. The PARK LP fuse in the underhood accessory wiring junction block. When the headlamp switch is placed in the PARK position, battery positive voltage is applied to the park lamp circuit. The parklamp circuit then applies battery positive voltage to the DRL control module and to all the marker, park and tail lamps. The front park lamps are grounded at G101. The rear park lamps are grounded at G302. The license plate lamps are a part of the rear park lamp circuit and are grounded at G302 The inadvertent power control feature prevents the park lights from remaining on more than 10 minutes if left ON. If the park lights are turned ON after the ignition switch has been turned OFF, or is in the ACCY position, they will remain ON until turned OFF or the battery runs dead.

Finding The Source Of Electrical Shorts In Your Car

Jun 16, 2017 | Cars & Trucks

1 Answer

2001 Monte Carlo SS 3.8 v6 Rear park lights are out as well as the dash lights, brake lights work headlights work front running and park lights work, all turn signal lights work. replaced headlight switch...


Park, Tail, Marker Lamps, and License
The park, tail and marker lamps, including the license lamps, turn on when the headlamp switch is placed in either the PARK or the HEAD position, or anytime the headlamps are requested. The RT I/P #1 fuse in the RH I/P fuse block supplies battery positive voltage to both the park lamp relay switch contacts and to the park lamp relay coil circuit. The park lamp relay coil is controlled by the body control module (BCM). When the headlamp switch is placed in the PARK position, the BCM energizes the park lamp relay coil control circuit.
Current flows from the park lamp relay switch to both front and rear park lamp fuses and to their respective park/tail lamps. The front park lamps are grounded at G101. The rear park lamps are grounded at G302. The license plate lamps are a part of the rear park lamp circuit and are grounded at G302. The inadvertent power control feature prevents the park lamps from remaining on more than 10 minutes if left on. If the park lamps are turned on after the ignition switch has been turned OFF, or is in the ACCY position, they will remain on until turned off or until the battery runs dead.

Did you the REAR PARK LP fuse 15 amp in the right insturment panel fuse box.

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No tail lights or dash lights


https://s8.postimg.org/5js3uvryd/park_lamps.jpg
Click on the link.
Did you check fuse circuit for voltage? Use a test light with headlamp switch on to check for voltage. See the park lamp relay, I'm not saying the relay is faulty, but, you might be able to use jumper wire on load side of relay, if lamps work, the problem is on control side of relay, for some reason.
The load side of relay is that line with arrowhead. There could be other issues.

Apr 13, 2017 | 2001 Chevrolet Impala

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