Question about 2000 Chevrolet Blazer

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Exterior lamps switch doesn't work

I own a 2005 4X4 Blazer. I have daytime running lights and insterment panal lights but when I turn the exterior lamp switch to "parking lamps" or "headlamps" nothing happens... no marker lights or taillamps. The manual says to check the internal circuit breaker. Where is this or is it the same as the fuse box? If it is the same as the fuse box is it the one in the dash on the left of the steering wheel or the one under the hood? Thank you for your time.
Monique

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Just a Word to the Wise----I recently Sold My 2000 Blazer (THANK GOD I FOUND A BUYER)!!!! You need to look at the Recalls and Complaints Online on the Chevrolet Blazer 2000 and Up! You could literally read for MONTHS! Mine was Great for the First 15000 Miles and then it went to POT----Bought this for My Wife to Drive cause She liked it and did not look it up first. (BIG MISTAKE) The First thing to go was the Fuel Gauge Then, Rest of Guages, Seats Broke, Tranny Died 3 Times, Brakes Failed 4 Times, Lights Stopped Working, ON and ON and ON!!!! GM will NOT Honor the Recalls and the Parts are Sky High to Bye and Fix it Yourself. You REALLY Should Get Rid of it A.S.A.P. and avoid the Pain that is Coming! FYI The Trade in Value of it is only about 1,500 to 2,500 Dollars in ANY Condion! Thought you Might like to Know!

Posted on Dec 30, 2008

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1995 Jeep Wrangler lights wont go out even after vehicle is turned off what could be the problem*


What lights ? Exterior - interior or all lights ? Could be the light switch , dimmer switch , daytime running lamps module . To find out for sure would need to test the electrical circuits , Can you do that ? There are videos on you tube on basic electrical trouble shooting , how to read a wiring diagram , how to use a DVOM - digital volt ohm meter .

May 14, 2016 | Jeep Cars & Trucks

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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

Mar 31, 2016 | Pontiac Grand Am Cars & Trucks

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How to turn off the daytime running lights on my 2005 chevy equinox


you have to change daytime running lights module.For now remove cable from battery +

Mar 19, 2016 | Cars & Trucks

1 Answer

Why aren't parking lights working?


Park lamp fuse 20amp located in the under hood fuse box .DRL control module
Daytime Running Lamps (DRL) Control Module
Right of the steering column, behind the IP
Park, Sidemarker, Tail and License Lamps
Voltage is applied continuously to the PARK fuse to the headlamp and the instrument panel (IP) lamp dimmer switch through CKT 1340.
When the headlamp and the (IP) lamp dimmer switch is in the PARK or HEAD position, voltage is applied to CKT 9 thus activating the following lamps:
• The park lamps
• The side marker lamps
• The tail lamps
• The license lamps
The park/turn lamps are the only lamps that do not activate yet receive a current from CKT 9. The park/turn lamps do not activate because the voltage drop across the front side marker lamps is much higher than that across the turn lamp filaments Step
Action
Normal Result(s)
Abnormal Result(s)*

1
Turn the headlamp/instrument panel (IP) lamp dimmer switch to the PARK position.
The following lamps light:
• The license plate lamps
• The taillight lamps
• The front side marker lamps (Domestic)
• The front parking lamps (Domestic)
The headlamp position lamps (Export)
Refer to Park Lamps Inoperative
Park Lamps Inoperative
Step
Action
Value(s)
Yes
No

1
Inspect the PARK LP fuse.
Is the fuse open?
--
YES - Go to Step 2
NO - Go to Step 3

2
Repair a short to ground in CKT 1340.
Is the repair complete?
--
Go to Exterior Lights System Check
--

3
Turn the headlamp/instrument panel (IP) lamp dimmer switch to the PARK position.
Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal R and ground.
Did the test lamp light?
--
Go to Step 7
Go to Step 4

4
Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal O and ground.
Did the test lamp light?
--
Go to Step 5
Go to Step 6

5
Replace the headlamp/IP lamp dimmer switch. Refer to Headlamp Switch Replacement .
Is the repair complete?
--
Go to Exterior Lights System Check
--

6
Repair the following conditions in CKT 1340 between the PARK LP fuse and the headlamp and the IP lamp dimmer switch harness connector terminal O:
• A faulty connection
• An open circuit
Is the repair complete?
--
Go to Exterior Lights System Check
--

7
Repair the following conditions in CKT 9 between the headlamp and the IP lamp dimmer switch harness connector terminal R and S204:
• A faulty connection
• An open circuit
Is the repair complete?
--
Go to Exterior Lights System Check

Feb 18, 2016 | 1999 Pontiac Montana

2 Answers

All of my running lights and blinkers work and high beams but no low beams on my 1997 Chevrolet TahoeA


Headlamps Inoperative - Low Beams

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic procedure should only be used if the high beam headlamps are operating properly and the low beams are inoperative.

1

Did you perform the Headlights System Check?
--
Go to Step 2
Go to Headlight System Check

2

  1. Turn the headlamp and panel dimmer switch to the ON position.
  2. Move the headlamp dimmer switch to the LOW position.
  3. Backprobe the headlamp dimmer switch connector with a J 35616-200 from cavity A to ground.

Does the test lamp light?
--
Go to Step 3
Go to Step 5

3

  1. Remove the daytime running lamp relay.
  2. Connect a J 35616-200 at cavity G5 to ground.

Does the test lamp light?
--
Go to Step 4
Go to Step 6

4

  1. Re-install the daytime running lamp relay.
  2. Backprobe cavity B at the high/low beam headlamp with the headlamp dimmer switch in the LOW position.

Does the test lamp light?
--
Go to Step 7
Go to Step 8

5

Replace the headlamp dimmer switch.

Is the repair complete?
--
Go to Headlight System Check
--

6

Repair the open in CKT 359 (PPL) between the headlamp dimmer switch and the daytime running lamp relay.

Is the repair complete?
--
Go to Headlight System Check
--

7

Replace the high/low beam headlamps.

Is the repair complete?
--
Go to Headlight System Check
--

8

  1. Inspect for an open in CKT 12 (TAN) between the daytime running lamp relay and S120, repair as necessary.
  2. Replace the daytime running lamp relay if no open was found in CKT 12 (TAN) between the daytime running lamp relay and S120.

Is the repair complete?
--
Go to Headlight System Check
--

Jul 24, 2015 | Chevrolet Cars & Trucks

1 Answer

Multifunction Switch Short in Pontiac Grand Prix


Do you know how to do automotive electrical testing , checking B+ power and ground circuits , using voltage drop ? Do you know how to read a wiring diagram ? Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know

How to read an electrical diagram Lesson 1

http://www.bbbind.com/free_tsb.html find wiring diagrams here !

The day time running lights module , ambient light sensor , would be a good guess but that's all it would be .Do you know what these are ? Really don't think there is a short in the multifunction switch . Maybe it's time to take to a qualified repair shop , dealer ! Cadillac or Buick .

Daytime Running Lamps (DRL)
The Daytime Running Lamps (DRL) control module is designed to automatically operate the exterior lights depending on the outside light conditions.
The DRL control module operates in 2 modes:
• The day mode
In the day mode, the DRL control module turns ON the low beam headlamps at a reduced intensity when the DRL ambient light sensor detects daylight under the following conditions:
- The ignition switch is in the RUN position.
- The headlamps are OFF.
- The park brake is OFF.
• The low light mode
In the low light mode, the DRL ambient light sensor detects darkness, turning ON the low beam headlamps to full intensity through CKT 10.
Additionally, the DRL ambient light sensor turns ON the following lamps through CKT 9:
- The park lamps
- The side marker lamps
- The license lamps
- The tail lamps

--------------------------------------------------------------------------------


Mar 25, 2017 | 1998 Pontiac Grand Prix

1 Answer

I tried to disable DRL but when i did my low beams dont work, any ideas?


You are wasting your time. This system is automatically controlled by the Daytome Running Lamp module. The system requires the daytime running lamp relay to work in order for the low beam headlamps to work. Any attemps to "disable" the daytime running lamps will also disable the low beam headlamps. I think what you are having problems understanding is that your headlamp switch does not actually turn the lights on. The switch only provides power so the DRL module can operate....it doesn't send power directly to the lamps. The power to the lamps is provided by the relay, which is operated by the DRL module. Unless you want to completely "re-engineer" the ENTIRE headlamp system, you are not going to get it to work the way you are wanting it to.

May 20, 2012 | 1999 Chevrolet Tahoe

1 Answer

No day lamps working


Check your headlight black groud wires & clean connections. Also daytime running light module could be defective.

Sep 09, 2009 | 1999 Chevrolet Blazer

1 Answer

Which fuse controls auto lamp feature in 2002 Ford F350?


Principles of Operation
The autolamp system provides light-sensitive automatic on/off control of the headlamps and parking lamps controlled by the vehicle security module when the headlamp switch is in the autolamps position. When the ignition switch is turned to the RUN or START position with the autolamps feature already enabled and the ambient light level is dark, the vehicle security module will request the headlamps and parking lamps be turned on. When the autolamps are disabled, the vehicle security module will request the headlamps and parking lamps to be turned off, regardless of the ignition switch position. When the vehicle security module has turned on the exterior lamps and the ignition is turned to the OFF or ACCY position, the exterior lamps will remain on for an additional 20 seconds.
When the autolamps have been enabled and the ignition switch is in the RUN/START position, the vehicle security module will request that the exterior lamps be turned on or off based on ambient light level. If the vehicle enters darkness for at least 15 seconds, the vehicle security module will request the exterior lamps on. If the vehicle enters light for at least 15 seconds, the vehicle security module will request the exterior lamps off. By delaying turning on and off the exterior lamps during short periods of darkness and light, the vehicle security module prevents the exterior lamps from flashing on and off.
Inspection and Verification
  1. Verify the customer concern by operating the autolamps.
  1. Visually inspect the following for obvious signs of mechanical and electrical damage.

    Visual Inspection Chart Mechanical Electrical
    • Headlamp switch
    • Central junction box (CJB) fuses:
      • 19 (5A)
      • 56 (30A)
    • Circuitry
    • Headlamp bulb
    • Daytime running lamps (DRL) full relay No.1 (if equipped)
    • Vehicle security module
    • Photocell

  1. If the concern is not visually evident, determine the symptom and proceed to the Symptom Chart.
------------------------------------------
  • The autolamps are inoperative—do not operate correctly
  • Central junction box (CJB) fuse(s):
    • 19 (5A).
    • 56 (30A).
  • Circuitry.
  • Photocell.
  • Headlamp switch.
  • Vehicle security module.
------------------------------------------------------------------
  • The autolamps are inoperative—do not operate correctly
  • Central junction box (CJB) fuse(s):
    • 19 (5A).
    • 56 (30A).
  • Circuitry.
  • Photocell.
  • Headlamp switch.
  • Vehicle security module.
please rate if if this helps.

Apr 29, 2009 | 2002 Ford F350 Super Duty DRW Reg. Cab

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