Question about 2001 Chevrolet Prizm

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My 2001 chevrolet prizm automatic light control not working

When i turn on my car, the lamp switch off, but on instrument panel headlamps light star flash, on night time my ALC not work, when i turn off ignition to lock or acc the lamp not off, when i opn the door, i hear a tone. please tell me what a problem.





thank you.

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Is the tone like a tone you hear but diffrent pitch then your blickers?

Posted on Jan 06, 2009

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I'm needing the wiring diagram for my 2007 Chevrolet Impala LT 3.5 tail lights.


Go to http://www.bbbind.com/free_tsb.html free wiring diagrams ! You having tail light problems ? Do you know how they work ?

They are turned on by the BCM !
Park, Tail, Marker and License Lamps
The park, tail, license, and marker lamps are turned ON when the headlamp switch is placed in either the HEAD or PARK lamp positions, or anytime the automatic light control (ALC) turns the headlamps ON. When the headlamp switch is placed in the park lamp or headlamp positions, ground from G202 is applied through the signal circuit to the BCM indicating the park lamp request. In response to this signal, the BCM applies ground through the park lamp relay control circuit energizing the PARK LP PCB Relay. With the relay energized, battery voltage is applied through the switch side of the relay, both park lamp fuses, and the supply voltage circuits illuminating the park, tail marker, and license lamps. Ground for the left front park and marker lamps is provided at G101 and the right front park and marker lamps at G100. Ground for all rear lamps is provided at G302.
Turn Signal Lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block supplies battery positive voltage to the body control module (BCM) for turn signal and hazard lamp operation. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G202 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. The BCM also sends a message via GMLAN to the instrument panel cluster (IPC) to cycle the turn signal indicator ON and OFF depending on the position of the turn signal switch.
Ground for the turn signal lamps is supplied as follows:
?€¢
G101 provides ground for the left front turn signal lamp


?€¢
G100 provides ground for the right front turn signal lamp


?€¢
G302 provides ground for the left and right rear turn signal lamps

May 03, 2016 | 2007 Chevrolet Chevrolet Impala LT

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

Mar 31, 2016 | Pontiac Grand Am 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

1 Answer

Why don't lights work?


Both the headlight switch and the BCM provide a ground, or control circuit, to the headlight relay coil circuit for manual or automatic headlamp operation. When you place the headlamp switch in the OFF position, and the ambient light sensor indicates low light conditions, the BCM energizes the headlamp relay for low beam operation. You may switch the headlights to high beam by pulling the dimmer switch handle toward you until the dimmer switch is activated. When the dimmer switch is placed in the HIGH position, the indicator lamp input to the BCM is pulled low. The BCM then sends a class 2 message to the instrument cluster in order to illuminate the high beam indicator lamp.
Low and High Beams Headlamps Inoperative ?
Replace the headlamp switch. Refer to Headlamp Switch Replacement .
Did you check the headlamp relay ? Location ,left instrument panel
Did

Nov 11, 2015 | 2001 Chevrolet Monte Carlo

3 Answers

How do I turn on fog lights on a Cadillac escalade esv 09


If it is a turn knob for lights just pull out on knob

Apr 27, 2015 | 2009 Cadillac Escalade ESV

1 Answer

I have a 98 chevy malibu. the tail lights, running lights and instrument lights do not work but head lights do


The good news is that all of these problems stem from the same source: the 15A PARK LPS fuse in the underhood wiring harness junction block. When you set the turn/headlamp/wiper switch to PARK, the park lamp relay in the junction block closes and power is applied to the front marker lamps and the park filament of the front park/turn lamps as well as the tail filaments of the rear tail/stop lamps.

As for the instrument lights, that same PARK LPS fuse applies power to the same turn/headlamp/wiper switch that, when set to PARK or HEAD applies power to the variable panel dimmer switch which lets you set the illumination level. Switch output is applied to the lamp dimmer module and module output passes through the 10A INST LAMPS fuse in the right I/P wiring harness junction block to the instrument lamps

Oct 13, 2012 | 1998 Chevrolet Malibu

2 Answers

Driver side headlight not working on 2001 windstar is there a fuse for this and where is it located


More often than not. headlights are usually 0n a fusible link or automatic breaker. and they controll both head lights at the same time. try checking the connector at the rear of the light unit. If its one of the later one piece covered units. the problem is most likly the halogen bulb. most reputable parts houses,such as AutoZone will check it out for you.
Good luck !

Jul 29, 2011 | Ford Windstar Cars & Trucks

1 Answer

Dash lights & tail lights are not working but every thing else is need help to locate fuse for it 2002 ford f150


The parking lamp circuit feeds the instrument illumination fuse

The parking lamp fuse is engine compartment Fuse # 6
After the main headlamp switch the cab fuse panel fuse # 18 is the fuse for the instrument illumination.

Don't forget to turn the main headlamp switch to at least the park position when you test the fuse with a meter.

Oct 19, 2010 | 2001 Ford F150 Styleside SuperCrew

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