Question about 1995 Volvo 850

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How to override the diagnostic code on a 1995 Volvo

How do you override the diagnostic code fir a 1995 Volvo?

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You do not over ride codes. You need to correct the fault or the code will continue to reappear.

Posted on Apr 15, 2015


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: What does 4-1-2 code mean

Secondary air injection system valve a malfuntion (code 412)

Posted on Feb 07, 2009

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SOURCE: when I use the diagnostic system, the led doesn't flash any codes

old model ,dont know the answer to this one ,try the OBDII connector with a laptop and the interface is about all i can suggest .

Posted on Mar 16, 2009

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Where and what does the reset switch for the 1996Volvo 850 lookslike

Volvo 850 (1993-1995) Service Light Reset
Under the hood there are 2 diagnostic units (labeled A and B on the cover) next to the washer reservoir.
1. Turn on the ignition and open diagnostic unit A.
2. Locate the flylead (the test wire that is in the plastic holder).
3. Insert the flylead into socket 7.
4. Press the large round test button on the diagnostic unit 4 times, briefly but firmly.
5. When the LED flashes and then stays lit, it will accept the reset code.
6. The reset code for the service light is 1-5-1.
7. Press the large round test button firmly one time and then release it. The LED should be lit.
8. Press the button firmly 5 times and then release it. The LED should be lit.
9. Press the button firmly one more time and then release it. The LED will flash several times.
10. Turn off the ignition switch and replace the flylead in its holder and close the cover.
The Service Light has now been reset.

May 13, 2015 | 1996 Volvo 850

3 Answers

Check engine ecu light keeps comming on 2006 volvo

Get OBD (on board diagnostic) from auto zone and plug it into car to read error codes.

Oct 08, 2014 | Volvo Cars & Trucks

1 Answer


The people who work at the emission inspection places are not technicians.The read codes and it is a matter of pass or fail.I would recommend paying for a real diagnostic with someone who is familiar with Volvos.It will same you money in the long run.Dont just replace parts.

Feb 06, 2011 | 1995 Volvo 960

1 Answer

I have spark at the coil going to the distrubater,but no spark at the plugs. and no power at the injectors

CKP. Cam Position Sensor. Needs crank and cam sensor signal to work. Need codes pulled at diagnostic port on front fender.

Google 'Volvo Code pulling'' or similar, for sites explaining how to pull codes without a scanner.

The sensor in the bell housing goes bad too.

Jan 13, 2011 | 1995 Volvo 850

1 Answer

My 1995 volvo 850 turbo is hard to start when hot.

Check fuel pressure regulator.
Pull out vacuum line from regulator and see if there any gasolin inside . If there is , it's your problem. Broken diaphragm inside fuel pressure regulator.
Replace fuel pressure regulator.
If not , further diagnostics has to be performed by workshop.

May 27, 2010 | 1995 Volvo 850

1 Answer

1993 Volvo 940 error code 232

2-3-2* Fuel trim (lambda control) too lean or too rich at idle }If too rich: high fuel press., leaking injector } various driving problems Fuel trim (lambda control) too lean at idle Oxygen sensor

Jun 08, 2009 | 1995 Volvo 940

1 Answer

1995 Volvo 855T-Stuck in Park

Your problem is at your key. The switch in the steering colmb is cracked or worn out. When it happens, try rotating the key counter clockwise just a little bit and watch everything start to work.
Good Luck,

Apr 15, 2009 | 1995 Volvo 960

1 Answer

When I use the diagnostic system, the led doesn't flash any codes

old model ,dont know the answer to this one ,try the OBDII connector with a laptop and the interface is about all i can suggest .

Mar 16, 2009 | 1995 Volvo 850

1 Answer

What does 4-1-2 code mean for volvo-460 1995 engine

its a diagnostic code, not sure of the exact meaning though. your best bet would be to try a volvo owners club or try volvo themselves. sorry cant help you any more.

Dec 18, 2008 | 1995 Volvo 960

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