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Volvo 2001, V70 SW: Backlights on LCD readouts on dashboard are out.

Can hardly see the messages, temp, and mileage readings. Is there a cable connection or fuse to check? Dimmer works with the other lights on panel.

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  • 32 Answers

This is a common issue with this vehicle. The instrument cluster will need to be removed and either repaired or replaced.
If you replace it with a used replacement, you will not have your original mileage. I would send yours in for repair. Here is a link to a repair facility.
https://ricksfreeautorepairadvice.com/

Posted on Oct 04, 2019

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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pkthoege

Paul Thoegersen

  • 95 Answers

SOURCE: 01 volvo v70 Sputters and shakes when excellerating from 0 to 35

You have an engine misfire....unless you have expertise in this area you need to see your local shop as you will damage your catalytic converter if you continue to drive. An OBD II scan tool will id the cylinder to help but knowledge here is key!!

Posted on Nov 19, 2008

Maibe Dorite

  • 28 Answers

SOURCE: Dim Dashboard read

On most vehicles you have a dimmer switch ( not talking about headlights) which you can adjust how bright or how dim the dashboard lights are because some people want them bright and others prefer dim either check your owners manual or check all around for it from drivers seat ( within drivers reach) when you find it if you can't adjust it then you want to consider replacing dash lights or switch.

Posted on Apr 01, 2009

Anonymous

  • 136 Answers

SOURCE: dashboard gauges dont work, 1998 dodge caravan

These vehicles seem to have a problematic short, my grandfather has the same vehicle with the same problem, i found the short under the carpet on the driver side of the vehicle, under the gas pedal, sometimes wires can crack and break.

MIKE

Posted on Jun 01, 2009

Anonymous

  • 580 Answers

SOURCE: 2001 volvo s440 1.9t

Volvo Radiator, Thermostat and Sensors Your cooling system's temperature controls include all coolant temperature sensors, Volvo thermostat, Volvo radiator or expansion tank cap, cooling fan(s) and fan clutch (if equipped). These cooling system parts function primarily independent of the engine but control the engine either through cooling or by sending control signals to your Volvo's electronic systems.
The Volvo thermostat is a spring-loaded valve that opens and closes based on the temperature of the coolant flowing through it. A high temperature reading followed by a drop to normal temperature (or a continuously low temperature) is a common first sign of a sticking Volvo thermostat. However, many other conditions may cause these symptoms, so you need to know how to eliminate each possibility.
The Volvo radiator or expansion tank cap is also a spring-loaded valve reacting to system pressure. It serves to maintain proper system coolant level at predetermined pressures. It must always be replaced with an exact replacement cap with the same pressure setting. Never use other caps except for short-term emergencies!
A belt-driven fan blade for pulling air through the Volvo radiator is usually on the Volvo water pump pulley and should have a fan clutch to control it. The fan clutch allows the fan to turn with the belt at low engine speed and "free-wheel" at higher speeds. A bad fan clutch either doesn't allow the fan to spin at low speed (overheating in traffic) or doesn't allow it to free-wheel at high speed (potential overheating on highway or reduced gas mileage).
An electric fan can be either by itself (usually front-wheel drive) or auxiliary (used with a mechanical fan). Both types are controlled via a temperature sensor - in the Volvo radiator or upper Volvo radiator hose or on the Volvo thermostat or Volvo water pump housing. This sensor is usually an on/off type switch with a fixed temperature setting. (Some vehicles may have 2-3 settings for multi-speed fans.) This sensor is commonly called an "auxilliary fan switch".
Other common temperature sensors are: 1) gauge sender (variable output); 2) warning light sender (on/off type); 3) lambda and/or fuel injection sensor(s) (variable to control fuel injection settings); 4) thermo-time switch (cold start valve control). Your Volvo may have other sensors as well.
Temperature control is critical to both performance and emission control. Unfortunately, this system is the most difficult to troubleshoot without proper equipment and diagrams. It's even more difficult with computers that adjust timing, idle speed, vacuum and fuel delivery automatically to make up for potentially faulty temperature sensor signals.
Maintenance of your cooling system sensors is virtually impossible since there's nothing really to "maintain". Keeping them clean both internally (coolant replacement) and externally (engine cleaning) is the best way to ensure trouble-free driving. Checking and replacing all parts at the factory-recommended time or mileage limits helps as well

Posted on Jul 23, 2009

Anonymous

  • 1 Answer

SOURCE: 2001 Volvo V70-T5 fuel guage malfunction

I had a similar issue and started to notice other electrical failures along with the gas gauge. My rear doors would not lock and my rear wiper stopped working. I started pulling fuses and relays to see if this would reset, no go. But then I hit the jackjpot. In the rear electrical panel, below all the fuses and relays is a 2" x 2" black plastic square with a big screw in it.

Remove the screw and pull evenly on the black square. This seems to be a major electrical hub for the car. I reconnected and all 3 of my issues disappeared...I read somewhere that a fix might be to disconnect the battery for a few minutes, which I guess re-sets some relays and circuits, but I guess this did the same thing. Good luck.

Posted on Sep 30, 2009

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The new thermostats are the opposite to the old ones that used to cook the motor when they failed.
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