Login Register

Replaced ECC and A/C blows warm, 2000 S80

Everything on the Volvo S80. Sometimes called an "executive car", the S80 was Volvo's top-of-the-line passenger car. P2 platform.
Post Reply
LB
Posts: 4
Joined: 22 June 2007
Year and Model:
Location: Toronto

Replaced ECC and A/C blows warm, 2000 S80

Post by LB »

Hi All,

Here are the details. Somehow fried the ECC after disconnecting the battery. ECC had no power to it, fuses are fine. AFter reading an article on the forum that suggested having the software reloaded by the dealer, their system showed "CEM SIGNAL MISSING FROM ECC". Something of that sort. The mechanic told me the system could not install the ECC software because the CEM could not communicate with it. He said there was no power to the ECC. That I believe 'cause not even the LEDS would light.

Their recommendation was to replace the ECC at $1000.00 CDN. Too expensive. Bought one from a junk yard and installed it. It powered up no problem. Now here's the issue.

The heated seat; rear defrost and trunk lock buttons would not work. Everthing else works including the fan and dampers, but A/C still blows warm. Went back to dealer, they still said no communication with ECC. They said it's because the ECC is used and has an ID to it. Further more it should not work at all. The mechanic said it is very strange that some of it works and I should get a new one. I don't believe it.

MIJ: if you read this post, you mentioned somewhere on the forum about having to SET a new or used one if it's replaced. Beacuse it's partially working that tells me the software is OK. If I need ot SET it, how do I do that. Thanks so much for all the help.....
:roll:

MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Has thanked: 17 times
Been thanked: 35 times

Post by MadeInJapan »

Man...I'm sorry- wish I knew what to tell you. I really know nothing about the S80. My question would be, why can't they download the software to the new "used" ECC unit, but then what do I know. 2000 model? I really don't think things got too out of hand as far as software downloads until '01, at least on the 70 series. I would ask a different dealer to see what they say or wait until a response from someone more knowledgeable than me here.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

LB
Posts: 4
Joined: 22 June 2007
Year and Model:
Location: Toronto

Post by LB »

Thanks for your quick response MIJ. If I remember correctly, it was 5-1-2 to set an ECC. New or used I don't remember, it might have been for an S70 as well....

JRL
Posts: 9350
Joined: 22 November 2005
Year and Model: Several
Location: 19333
Been thanked: 16 times

Post by JRL »

They are married the the car, it's amazing that this even runs

Post Reply
  • Similar Topics
    Replies
    Views
    Last post