Speedometer 940

98945lt · Mar 15th, 2018, 23:39

Hello.
Need to know what color on wire on speedometer and LH-2.4 unitwho gives the spedometer signal ? The car is aVolvo 940, B230FK, 135 hp, year model 1998.
Hope there is someone who can help me.

aardvarkash10 · Mar 16th, 2018, 04:41

speedo signal comes from the reluctor on the diff housing nose.

The wires are a twisted pair, brown/white and green/white.

They are located at A3 and A5 pins on the connector at the back of the instrument cluster.

The LH module picks up a speedo signal from the speedo on a violet/white wire

All that from a diagram for a '95 940. Can't imagine why it would change much.

Rversteeg · Mar 16th, 2018, 08:54

Looking at the 98 diagram it is still the same. Speed signal to the LH unit is connected to D:1 on the instrument cluster.

98945lt · Mar 16th, 2018, 09:01

Lot of thanks for the answers. Is D:1, A3 and A5 marked so you easily can see them?

98945lt · Mar 16th, 2018, 09:05

Lot of thanks for answers!
Is D:1, A3 and A5 marked so you easyli can see them?
I think I have to check this vecause of a strange idle on my car.
Here is the link to that:
https://www.volvoforums.org.uk/showthread.php?t=276927

Rversteeg · Mar 16th, 2018, 12:32

Picture of instruments cluster with connectors.

jpliddy · Mar 16th, 2018, 18:15

hi reversteeg
do you have the drawing for the d24 tdi dash cluster year 1995
sorry to gatecrash the thread

98945lt · Mar 16th, 2018, 18:27

Great service! Thanks!!
Gatecrash is no problem with me!

98945lt · Mar 16th, 2018, 19:10

Do you have any tips for me about this problem? Briefly explained: Starting up the engine and driving immediately. When the engine reaches operating temperature, idling will be up to 1200-1500 revolutions. When the car stops (ignition on) idling goes down to normal. Starting and rolling without gas, the idle speed goes back to 1200-1500. Turning off ignition and restarting idle is completely normal.

Laird Scooby · Mar 17th, 2018, 08:29

Without knowing more about the problem, it sounds like either a vacuum leak, low coolant level or a Lambda sensor problem to me.

Mar 15th, 2018, 23:39	#1
98945lt Junior Member Last Online: Mar 29th, 2018 07:27 Join Date: Jul 2017 Location: Skaabu	Speedometer 940 Hello. Need to know what color on wire on speedometer and LH-2.4 unitwho gives the spedometer signal ? The car is aVolvo 940, B230FK, 135 hp, year model 1998. Hope there is someone who can help me. Last edited by 98945lt; Mar 15th, 2018 at 23:49.

Mar 16th, 2018, 04:41	#2
aardvarkash10 Master Member Last Online: Oct 8th, 2022 22:22 Join Date: Sep 2016 Location: Auckland	speedo signal comes from the reluctor on the diff housing nose. The wires are a twisted pair, brown/white and green/white. They are located at A3 and A5 pins on the connector at the back of the instrument cluster. The LH module picks up a speedo signal from the speedo on a violet/white wire All that from a diagram for a '95 940. Can't imagine why it would change much. Last edited by aardvarkash10; Mar 16th, 2018 at 04:45.

Mar 16th, 2018, 08:54	#3
Rversteeg Master Member Last Online: Today 12:56 Join Date: Feb 2006 Location: Amersfoort (NL)	1998 diagram Looking at the 98 diagram it is still the same. Speed signal to the LH unit is connected to D:1 on the instrument cluster.

Mar 16th, 2018, 18:15	#7
jpliddy VOC Member Last Online: Feb 15th, 2024 17:04 Join Date: Dec 2006 Location: stoke on trent	940 tdi auto 1995 hi reversteeg do you have the drawing for the d24 tdi dash cluster year 1995 sorry to gatecrash the thread

Mar 17th, 2018, 08:29	#10
Laird Scooby Premier Member Last Online: Today 13:45 Join Date: May 2012 Location: Lakenheath	Without knowing more about the problem, it sounds like either a vacuum leak, low coolant level or a Lambda sensor problem to me. __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

Mar 16th, 2018, 09:01	#4
98945lt Junior Member Last Online: Mar 29th, 2018 07:27 Join Date: Jul 2017 Location: Skaabu	Lot of thanks for the answers. Is D:1, A3 and A5 marked so you easily can see them?

Mar 16th, 2018, 09:05	#5
98945lt Junior Member Last Online: Mar 29th, 2018 07:27 Join Date: Jul 2017 Location: Skaabu	Lot of thanks for answers! Is D:1, A3 and A5 marked so you easyli can see them? I think I have to check this vecause of a strange idle on my car. Here is the link to that: https://www.volvoforums.org.uk/showthread.php?t=276927

Mar 16th, 2018, 18:27	#8
98945lt Junior Member Last Online: Mar 29th, 2018 07:27 Join Date: Jul 2017 Location: Skaabu	Great service! Thanks!! Gatecrash is no problem with me!

Mar 16th, 2018, 19:10	#9
98945lt Junior Member Last Online: Mar 29th, 2018 07:27 Join Date: Jul 2017 Location: Skaabu	Do you have any tips for me about this problem? Briefly explained: Starting up the engine and driving immediately. When the engine reaches operating temperature, idling will be up to 1200-1500 revolutions. When the car stops (ignition on) idling goes down to normal. Starting and rolling without gas, the idle speed goes back to 1200-1500. Turning off ignition and restarting idle is completely normal.

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