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96 Volvo 850 Climate Control Blinking Lights

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

T64me
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T64me

96 Volvo 850 Climate Control Blinking Lights

Post by T64me » Thu Jun 07, 2018 8:39 pm

I have the dreaded blinking lights on my 96 Volvo 850's Climate Control Module. I put in a new blower motor, tried 2 different CCM but the blinking lights remain.

Here's the current situation:
The lights on the CCM blink for a bit after the car is started. Then the blinking stops.
No air comes from any of the vents
When I turn the knob to defrost, I can hear the damper motor working
When I turn the knob to the vents, I can hear the damper motor working
When I turn the knob to the foot vents, I CAN'T hear a damper motor working
When I push the Recirculate switch, I can hear the damper motor working
When I slide the fan speed switch to "ON" the engine speed increases temporarily
When I slide the fan speed switch to "OFF" the engine speed decreases temporarily

I have an 850 parts car that I can pull parts from. Any constructive input would be greatly appreciated!



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RickHaleParker
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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by RickHaleParker » Thu Jun 07, 2018 10:48 pm

Pull the codes for the CCM, this link will show you how to.


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

T64me
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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by T64me » Fri Jun 08, 2018 7:02 am

So, given that I have a 96, it appears that I need a special Volvo tool to pull the codes from the CCM?

Never thought I would miss the prior OBD system...



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erikv11
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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by erikv11 » Fri Jun 08, 2018 7:26 am

You can use a very simple home-made OBD tool to pull the climate control codes OBD-I style. Dozens of variations if you do a search but e.g. see viewtopic.php?f=37&t=60660


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by RickHaleParker » Fri Jun 08, 2018 7:40 am

I was think yours is a '94.

Option1: You can make a blink code reader for the'96. You can find instructions and a file with the code list here.

Option 2: 850 OBD-II for Android and a ELM327 bluetooth dongle

Option 3: Get a working copy of Vol-FCR and a OBDII to serial or USB cable.
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T64me


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

T64me
Posts: 107
Joined: Fri Jun 17, 2011 9:23 pm
Year and Model: 04V70R/05S60R/07S60R
Location: Stillwater, MN
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T64me

Re: 96 Volvo 850 Climate Control Blinking Lights

Post by T64me » Fri Jun 08, 2018 12:32 pm

I attached my bluetooth dongle and tried the 850 OBD-II app. Was able to turn off the service light!!! Wooo Hooo!!!

I did a scan on the car too. Not sure what I am looking for to solve my issue with the CCM/damper motors. How do I use the app for this purpose?
Last edited by T64me on Fri Jun 08, 2018 1:33 pm, edited 2 times in total.



T64me
Posts: 107
Joined: Fri Jun 17, 2011 9:23 pm
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T64me

Re: 96 Volvo 850 Climate Control Blinking Lights

Post by T64me » Fri Jun 08, 2018 12:33 pm

I attached my bluetooth dongle and tried the 850 OBD-II app. Was able to turn off the service light!!! Wooo Hooo!!!

I did a scan on the car too. Not sure what I am looking for to solve my issue with the CCM/damper motors. How do I use the app for this purpose?



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RickHaleParker
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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by RickHaleParker » Fri Jun 08, 2018 11:24 pm

Yea Yea the 850 OBD-II interface does need some work. It is somewhat counter-intuitive. Some applied ergonomics would be nice. However the functionally is pretty much the best for the pre-99 cars.

Go to Service, connect to the dongle, do a scan, when the scan is finished go back to the Main/Info page and look for DCTs in the format ECC-XXX. (Electronics Climate Control.) Tap on the entry for a ECC-XXX to get more information.


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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Klausc

Re: 96 Volvo 850 Climate Control Blinking Lights

Post by Klausc » Sun Jun 10, 2018 10:38 am

I made a simple code reader for the ECC. Seems that every vent flap had an error, what fun! Just be careful because the battery seems to drain quickly with the home made reader.
The prior owner or mechanic had tried to reprogram the vents and screwed up - the dash vents were totally stuck closed. Removal of the dash pad was required.

Hopefully, your car only has a broken vent flap. Easy to fix after removing the glove box.

Don't forget to 'clear' all of the codes before turning on the engine and getting the active codes.


Klaus
If I had a larger garage, I could have more Volvos.

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erikv11
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Re: 96 Volvo 850 Climate Control Blinking Lights

Post by erikv11 » Sun Jun 10, 2018 11:11 am

Klausc wrote:
Sun Jun 10, 2018 10:38 am
... Don't forget to 'clear' all of the codes before turning on the engine and getting the active codes.
Yes, this is a key point!


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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