Question about Volvo V70

1 Answer

Early 2001 V70 headlights, no low beam. Something common to both. High beam and parking lights OK. Power at fuze, no power at lamp. Good ground. Alarm/warning circuit works. Would like to get a schematic.

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  • pete lager Feb 19, 2010

    Re Question #1

    OK now how do I get to the head light relay??? I have the kick panel off but can not see anyway to lower the relay block or get the dash out of the way One of the headlamps did come back on (left) so if the relay has 2 contacts (2x form A) that could still be the problem or it could be a corroded connector (salted up - upstate NY) Some sort of diagram would be helpful



    Question #2

    01 V70 alpha/numeric dash lights The ones at the bottom of the instrument cluster Should be controlled by the instrument lighting rheostat Rarely (2-3%) it is normal Another mode is full bright with no control (2-3% also) Almost always it is very very dim, readable only at night This also effects the radio and the Nav system making the Nav system almost useless



    Question #3

    This 01 V70 GearTronic has 220K miles on it What auto tranny fluid do you suggest for a flush and refill other than the high priced OEM stuff??? Someone should make a compatible synthetic



    Question #4

    Also 01 V70 GearTronic Usually all shifts are fine but sometimes it will go into a snit where the 1-2 and 2-3 shifts are not normal If the 1-2 sift is hard, the release from 2 will be followed by a second or 2 of almost a drag followed by a very hard shift to 3rd This is most noticeable when under light throttle/acceleration (my normal driving style)



    Pete Lager

    Honeoye Falls NY

    ericplager@aol.com

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  • Master
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This vehicle uses a low beam relay that is located under the dash drivers side. Position 12 counting from the left side count down then second row bottom one is 12 .

Don't go all the way down there is a gap and a couple more relals on the bottom section

Posted on Feb 02, 2010

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No low beam. Good high beam. No day lights. What's wrong?


No on the fuse . The LH HDLP and RH HDLP fuse in the fuse block - under hood, supply battery positive voltage to both low and high beam lamps at all times. For manual operation, when the headlamp switch is in the ON position, the headlamp switch supplies ground directly to the headlamps and to the body control module (BCM) on the headlamp low or high beam signal circuit, depending on the position of the headlamp dimmer switch. The BCM uses this signal to determine if the conditions are present to illuminate the daytime running lamps or park lamps.
The headlamps may be turned on 2 different ways. First, when the driver places the headlamp switch in the ON position, for manual operation. Second, with the headlamp switch placed in the OFF position activating automatic lamp control (ALC).For ALC operation, the BCM receives a signal from the ambient light sensor indicating a low or high ambient, outside, light level. Under low light conditions the BCM grounds the headlamp relay control circuit energizing the headlamp control relay. The now closed relay supplies ground through the headlamp switch to the headlamps and the BCM on the headlamp low or high beam signal circuit, depending on the position of the headlamp dimmer switch. When the BCM grounds the headlamp relay control circuit it also grounds the park lamp relay control circuit illuminating the park lamps. The headlamp relay is grounded at G203.
Daytime Running Lamps (DRL)
The low beam headlamps operate at reduced intensity when in daytime running lamps (DRL) mode. The ground circuit to the switch side of the DRL relay has a resistor in-line to reduce the intensity of the low beam headlamps for DRL operation. The body control module (BCM) receives a signal from the ambient light sensor indicating a low or high ambient, outside, light level. Under daylight conditions the BCM grounds the DRL relay control circuit energizing the DRL control relay. The now closed relay supplies ground directly to the low beam headlamps and to the BCM on the headlamp low beam signal circuit. The low beam headlamps now illuminate with reduced intensity. The DRL relay is grounded at G203. Any time the headlamps are illuminated the DRL will not illuminate. Manual park lamps do not effect DRL operation.

Feb 23, 2016 | 2005 Chevrolet Equinox LS

1 Answer

Why wont the headights or running lights work on my 2002 Buick LaSabre?


There are several reasons why your headlamps an running lights don't work , the headlamp switch is a good one ,plus relays an the DIM - dash integrated module an associated wiring ! Here is how the headlamps work , right out of Buick factory service info !
The dash integration module (DIM) provides battery positive voltage to the signal circuits of the headlamp switch. The signal circuits include the headlamp switch headlamps on signal, the flash to pass switch signal and the high beam input. With the headlamp switch in the ON position, a ground path is available for the headlamp switch headlamps on signal circuit of the DIM through the headlamp switch. The DIM provides ground to either the headlamps high beam relay control circuit or the headlamps low beam relay control circuit of the low beam circuit. The position of the headlamp dimmer switch determines which relay control circuit has ground. The DIM supplies battery positive voltage to the relay control circuits, if the headlamps are necessary. The fuse block - underhood supplies battery positive voltage to both relay switch circuits. When the low beam relay control circuit is energized, current flow is to both low beam fuses and to the low beam headlamps. The headlamps have ground at G103 and at G401. When the headlamp high beam relay control circuit is energized, current flow is to both high beam fuses and to the high beam headlamps. The high beam circuit is divided into a left and right side circuit. The current flow of the left high beam is from the fuse to the left high beam lamp. From the lamp, the current flows to the normally-closed contact of the DRL relay to G103. The current flow of the right high beam is from the fuse to the right high beam lamp. From the lamp, the current flow is to ground at G401. When the headlamp dimmer switch lever is pulled toward the driver, the flash-to-pass switch closes. This grounds the DIM flash to pass switch signal circuit. In response to this input, the DIM energizes the HDLP HI BM relay. Both high beams remain on until the driver releases the switch handle. If the low beam headlamps were on during a flash to pass operation, the low beams remain on. The headlights may be switched to high beam with the opposite movement of the headlamp dimmer switch lever.
By running lights , do you mean park lamps or day time running lamps ?
Park, Tail, License and Marker Lamps
The park lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or ON position or anytime the headlights are requested. The fuse block - rear supplies battery positive voltage to the switch contacts of the Park LP relay. When the headlamp switch is in PARK or in ON, the park lamp switch on signal circuit of the DIM has a ground path. The DIM provides battery positive voltage to the control circuit of the Park LP relay. When the park lamps and/or the tail lamps are ON, the DIM energizes the park lamp relay control circuit. This closes the switch contacts. Current flows from the Park LP relay to the LH PARK LP and the RH PARK LP fuses. From the fuse, the current flows to the park lamps. The left park lamps are grounded at G103, G401 and G402. The right park lamps and the right tail lamps are grounded at G103 and G401. The DIMR fuse supplies battery positive voltage to the license lamps and to the DIM instrument panel lamp fuse supply voltage - 1 circuit, for interior lamps dimming. The license lamps are grounded at G401.
The best advice I can give is that you take this to a ASE certified professional repair facility unless your a qualified automotive electric repair person !
Diagnostic Starting Point - Lighting Systems
Begin the system diagnosis with the Diagnostic System Check - Lighting Systems . The Diagnostic System Check will provide the following information:
?€¢
The identification of the control modules which command the system


?€¢
The ability of the control modules to communicate through the serial data circuit


?€¢
The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

The

Mar 15, 2015 | 2002 Buick LeSabre

1 Answer

No power to right side (PS) headlight low beam plug socket, new bulb, fuse is good. High beam works, blinker works, park light works. just no low beam and doesn't register any voltage on volt meter.


check low beam fuse when switched on if it has voltage registering across the fuse ,if there is voltage across the low beam RHS fuse then it is possibly a pinched wire from the headlight running back towards inside of the car

Jan 30, 2014 | Cars & Trucks

1 Answer

I have a 1994 Toyota Starlet EP82 the parking light, dashboard lights and fog lights don't work on low beam only on high beam. Can you please help?


a 84 or 94? ill answer with 1994
ok , not all problems get solved guessing, a real mech uses a thing
called a voltmeter and a thing called a schematic. to find the truth.
100% effective rate.

first off , are you in a USA car./ or canada,. must i guess?
and does it have the DRL option, key factor on all HL issues.
Daylight running lights (HL on all time )

parks lamps are a feature of low beams so is a victim.
so are dash dim-able lamps.
my guess is you posted to uSA 1984 Starlet but we dont have 94s here. no books either,
so get your own FSM for your country EP82
are you here> see wiki quote here. lots of variants would wide
and for sure lighting, lighting is control by LAWs of your imported
country, so not stating country (not one post in 8000 did) makes
answers, IMPOSSIBLE. even begging this , nets ZERO answers. ever. (odd that, very odd)
(eg. im in deep south USA)
quote
The Gi and GT featured twin round headlights and mesh grille, also known as quad headlights. These minor changes were only extended to Japan, Hong Kong, Indonesia, and New Zealand. Hong Kong received Japanese market Soleil L. The 1.3 SE-G continued in Indonesia, and the 1.3 GS replaced 1.3 S in New Zealand. Production in Japan ended in December 1995, but in Indonesia continued until March 1998.
(yes, complex)

if i had the car, and no books sold, id still have my meter.
and id find the cause.
the path is simple (no DRL)
there are 2 lighting systems. (ground switches or power switched)
most are power. (working blind , you need to know that)
blind = no fsm schematics.

1: car battery 12v
2: : got power to HL fuses? and past them 12v?
3: switch. (combo switch) id fix park first. turn to park.
power to HL switch good? y/n 12v.
4 got power 12v to output of switch, (park is good start)
yes,
got power to any park lamps (pick one? any one)
ok im at the lamp now.
5 i have 12v at the lamp but it down glow.
lamp burned out., no, they all fail .
so i measure the lamp ground to battery minus lug
oops its 12v.
the ground is open and all park lamps are dead.

ill stop here, if ground is bad , there are 3 more tests.


Nov 30, 2013 | 1984 Toyota Starlet

2 Answers

2001 suburban


Well the high and low beam lamps use the same fuses, and the dimmer switch handles the ground circuit. So I would check the dimmer switch if both high beam bulbs are ok.

Jul 23, 2013 | Cars & Trucks

1 Answer

Lights will not turn on


HEADLIGHTS NOT WORKING


It can be faulty headlight switch or issue with its wiring. Or its faulty head light fuse.


==========

To troubleshoot the issue i suggest you few help links with appropriate solution. So you can follow the test and confirm what exact problem is there in your case of headlights not working:-----

Click the link below: -----


All headlights not working?

http://repairhelpcenter.blogspot.com/2012/01/all-headlights-not-working.html

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Working of Headlight switch?
------------
Both headlight bulbs blow together?

------------
Car headlight bulbs don't last long?

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

2007 Dodge Caliber: Low Beam Headlight Not working

http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html

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2003 Toyota Camry: Headlights Work Intermittently?

http://technoanswers.blogspot.in/2012/04/2003-toyota-camry-headlights-work.html

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Chevy Tahoe: Low Beam Lamps are not working?

http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html

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2001 Chevrolet Tahoe: Headlights not coming ON?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-headlights-not.html

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2004 Dodge Ram: High Beam Light is DIM?

http://technoanswers.blogspot.in/2012/04/2004-dodge-ram-high-beam-light-is-dim.html

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2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

---------
How to Replace a Headlight

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight.html

------------
How to Replace a Headlight Bulb


http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-bulb.html

-----------
How to Replace a Headlight Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-switch.html

----------
How to Replace a Headlight Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-assembly.html


How to Replace a Park Light Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-park-light-assembly.html

-----------

Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

----------

Headlight Assembly Removal On Honda Accord

http://technoanswers.blogspot.in/2012/06/headlight-assembly-removal-on-honda.html

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

Honda Headlight Assembly Removal
http://schematicsdiagram.blogspot.in/2012/06/honda-headlight-assembly-removal.html

-----------

How to Replace a Headlight Door

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-door.html

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How to replace HID headlight bulbs for lexus 400h?

http://schematicsdiagram.blogspot.com/2012/01/how-to-replace-hid-headlight-bulbs-for.html

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

These will help.

Thanks.

Nov 28, 2012 | 1986 GMC K1500

2 Answers

I have a 1995 Ford Explorer Limited and the high beams work but the low beams and fog lights do not, please help....


These trucks are known for bad multifuction switches.
the switch that i talk of is the signal switch , the handle is the switch, it bolts to side of steering column . this switch controls the signals and the headlights and high /low beams. the other thing is the headlight switch connector, the connector some times goes bad and starts to melt or just comes out of the connector. you will need to remove the cover to steering column, the screws are located under the bottom cover in holes. remove cover and check connector and then test for power if you have power going into switch but not coming out then switch is bad.

the last thing is to make sure the bulbs are good , make sure the headlight bulbs are good , and also the driving light bulbs, test for power at the connectors to those lights to.
You will need to do a little testing to find the problem.

Nov 22, 2012 | Cars & Trucks

3 Answers

Low beam head lights not working - The low beams, both stopped working. The high beams work fine. I checked the fuses and all 4 are good. I even swapped the low and high beam fises just in case. No...


if the fuses are good then you need to check for power and ground at the headlight plug that attaches to the headlight bulb if you have a good power and ground there and the connections are good then the bulbs are both no good.or if you can tell the bulbs are burnt out by looking at them then you don`t have to check powers and grounds.you also can directly feed power and ground to the bulb and check both the terminals for high beam and low beam as you cannot tell which is which by looking at the terminals

Mar 04, 2011 | 2001 Ford Focus

2 Answers

Only hi beams work ...no low beams . Lamps and fuses are good. Replaced relay, no change. Keep reading about ground wire from lights can not find it


The wiring schematic changes drasticly depending on whether your vehicle is equipped with daytime running lamps or not. However, both systems have one thing in common...the low beams and the high beams get their grounds from the same place. If the high beams are working correctly, the ground is not your problem. The most common causes of low beams not working and high beams working are the multifunction switch (or as Toyota calls it: "Combination Switch") and if your vehicle has daytime running lamps, the Daytime Running Lamp Module could be the problem.

Dec 02, 2010 | 2001 Toyota Tacoma

1 Answer

2002 pontiac grand prix gt. High beams are dimmer


A loose ground wire to the headlight will keep it dim,Or a headlight adjustment will bring the headlight up.If you can have your headlight turned on a garage door or something at night,and then watch as you change your headlights from low beam to high beam which ones are higher.the last thing to verify is that your high beam headlights are not the plastic lens type that turn dull which cuts the light power.

Dec 31, 2009 | 2001 Pontiac Grand Prix

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