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2004 XC-90 codes pulled today

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Old Aug 17th, 2019, 20:58   #1
Georgeandkira
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Last Online: Today 02:28
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Location: Hackensack
Default 2004 XC-90 codes pulled today

Hello, I frequent the V70 forum as we're on our 3rd V70.
Today I looked at a 2004 XC-90 for sale at a local gas station. It drove quite well though it had no discernible turbo boost.
It shifted well, had clean oil on the dipstick though a few chunks of build-up on the filler cap and oil fill grille.
The AC worked just fine too.
I pulled 17 codes with my BSR-PPC reader.
There was no Check Engine Light
The CEL did light up appropriately with the start-up circuit.

I used CAPS after each code and definition for clarity.

1) ECM 2A2A - Rear HO2S bank #1 heating. I WILL CHANGE THE REAR O2 SENSOR
2) CEM 1A66 - Communication with ICM. NO IDEA WHAT ICM MEANS
3) CEM 5B01 - LH heating element. HEATING ELEMENT OF WHAT?
4) CEM 6C48 - Transponder type. WHICH TRANSPONDER?
5) CEM 6C49 - Steering Column Lock Module. KEY WORKED OK. THE DISABLER RING (see above)
6) CEM 8F2D - Windshield Wipers / wiper. WIPERS AND WASHERS WORKED OK
7) CEM 8F2E - Windshield Wipers / wiper. as above
8) ECM 4801 - TWC efficiency bank 1. WHAT IS TWC?
9) DDM 0025 - BUT 0035 REFERRED TO THE PASSENGER WINDOW
10) PDM 0025 - as above
11) UEM 0035 - reading lamp
12) UEM 0037 - reading lamp
13) UEM 0039 - General Courtesy lighting
14) UEM 0080 - Rain Sensor
15) PCM 002A - NO PCM CODES LISTED
16) PCM 002B - as above
17) PCM 0023 - as above

Any help with any of these will be much appreciated.
1) I'm sure the heating element of the sensor went bad so it's self explanitory
2) as stated, what's an ICM and where should I look?
3) LH (left hand?) heating element?
4 + 5) The anti-theft transponder pick-up ring?
6 + 7) Any clue here as the wipers and washers work.
8) TWC efficiency? no clue
9 + 10) Another odd Volvo window positioning code?
11 - 14) I can live with these. I'll check the bulbs and throw water on the windshield
15 - 17) There was no PCM definition nor heading let alone codes listed.

Any help at all with these puzzlers. thanks George (and Kira)
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Old Aug 19th, 2019, 09:02   #2
benben
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Default

The first thing I got after getting a modern Volvo was a DICE reader and a copy of VIDA. VIDA has info on just about anything and you can manually search for the codes you mention.

I attached a screenshot of the ICM code.
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File Type: jpg Screen Shot 2019-08-19 at 8.50.10 AM.jpg (92.5 KB, 16 views)
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Old Aug 19th, 2019, 10:22   #3
john langrick
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The ICM is the information control module and it's the bit that shows the display on the radio. It is not the radio itself but the control unit for such as the aerial modules, amplifier, sag nav, reverse sensors etc. It interfaces these other units via an infra red bus called the MOST bus. The infra red signals originate from the.ICM.

It could well be that the car has not had codes reset for a long time so many of he indicated problems could well have been addressed a long while ago and only the fault codes still recorded.

I would reset them all and start from there. Ther are already recorded here!

Purchasing Vida diagnostics I agree is a good idea and will go further into how to address problems (I hear), but you may be chasing issues long gone.

For example I know from experience that a failing battery can bring up all sorts of error codes that are not related to real issues.

I have.a simple odb reader which will reset codes but these days rely on my indie to go further.

Hope this helps.

John l

Last edited by john langrick; Aug 19th, 2019 at 11:10.
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Old Aug 27th, 2019, 23:35   #4
Georgeandkira
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It's 10 days after I posted initially.
Repeated attempts to contact the owner have gone unanswered.
On Sunday I spotted a "cherry" 2005 Ford Ranger FX4 Extended Cab whilst strolling in my town.

It's 46 hours later and now it's mine.

Original owner, LOW miles, new tires, solid maintenance at an esteemed garage. I could go on.

Let the mystery woman who's out of the country keep her damn XC-90.

I've wanted a truck for a while.
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