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2007 Volvo S60 R SUM Calibration Topic is solved

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
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wessleym
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2007 Volvo S60 R SUM Calibration

Post by wessleym »

I'm new to Matthew's Volvo Site, and I'm hoping someone here will be familiar with SUM calibration and have a solution to my problem:
I recently replaced my struts, shocks, and springs on my 2007 Volvo S60 R. Now I need to calibrate the SUM. When using VIDA, I am able to reach the calibration screen, but I can't seem to complete a calibration. I have the engine running, and the car is unloaded. But in the bottom section, the solenoids always reports hyphens (-----------) or "Not calibrated." Here's a screenshot:
SUM Calibration.png

Oddly, I was able to get the solenoids to say, "OK," once, but the key was in position I. I suspect the system is still uncalibrated because I don't detect a great difference in Comfort, Sport, and Advanced modes. Also, VIDA has a screen that allows you to check the "keypad" (the Comfort, Sport, and Advanced buttons). If memory serves, you can access this screen from Diagnostics > Vehicle Communication > right-click SUM > Advanced > "Checking the Four-C (Continuously Controlled Chassis Concept) Keypad Unit." On that page, you can open a tool that lets you check the voltage that is read when each button is pressed. The page says something like, the voltage should 0-2.4V in Comfort, 2.4-3.5V in Sport, and 3.5-5V in Advanced. Despite each of the Four-C buttons illuminating when pressed, the voltage shown in VIDA remains roughly the same:
SUM Switch Input Signal.PNG
SUM Switch Input Signal.PNG (6.31 KiB) Viewed 597 times

When I press Advanced, the "S" sport button near the shifter does turn on.
If it's useful, here are some SUM parameters from VIDA:
SUM Parameters.PNG
SUM Parameters.PNG (5.99 KiB) Viewed 597 times
I have no errors on the Fault Trace pages.
Thanks!

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RickHaleParker
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Post by RickHaleParker »

Did you hook the Struts valves back up?
SUM Parameters.PNG
SUM Parameters.PNG (6 KiB) Viewed 560 times
4C SUM.jpg
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
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wessleym
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Post by wessleym »

RickHaleParker, thank you for that image. While I understand what it's saying on paper, I don't know how practically to check this on my car. Do you know of some instructions for following this connection all the way through to ensure it's connected?

I took my Volvo to a dealership yesterday to get the suspension calibrated. They didn't end up actually doing anything to the vehicle, but they didn't charge me. Their top Volvo technician checked the car and gave me a lot of information. These are the conclusions:
1. "With an S60 R automatic, you will always get hyphens in the solenoid calibration section. Just getting 'OK' in the position sensor section and 'Operation finished' on the right for both sections is good enough."
2. "The 'SUM - Switch input signal' will only change while driving and switching Four-C modes."

But I'm not sure if either of the above is true. I haven't seen any agreement for either of those points online. I also tried #2, and I still couldn't get my switch input signal voltage to change.
He also thought all Four-C modes felt like they normally would on an S60 R.

Here's how I'm hoping someone can help me:
1. What are you SUM parameter values for "Valve supply front left", "Valve supply front right," "Valve supply rear left," and "Valve supply rear right"? Should it be 0 volts? Mine are.
2. Has anyone with an R ever been able to get something besides just hyphens in the solenoid calibration section?
3. Does your "SUM - Switch input signal" change when you press your Four-C buttons? Volvo's own documentation says it should.

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erikv11  
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Post by erikv11 »

I'm not familiar with the calibration routine but I've got an 06 S60 R that seems to function properly. The front 4C struts were replaced at a shop just before I bought it, the rears are original (!). I've also got VIDA so here is some partial response to your three questions:

1. For my car, all four valve supply voltages read zero when the car was stationary. But when I moved the vehicle (rolling slowly forward in drive) the voltages immediately started to jump around. I also noticed that the voltages jumped up to higher max values (hard to see exact readings as it changes so quickly) depending on the 4C button mode: In Comfort the voltages seemed to be up around 2 V, in Sport they were up around 4 V and in Advanced they were more like 6 V. This was all rolling slowly down a bumpy paved surface. Those observations provide some evidence 4C is working.

2. I am hesitant to enter beyond the front screen of calibration mode because I don't want to mess things up if properly calibrated. If you (or anyone!) can assure me it's no problem I can push further on this matter.

3. The "SUM - Switch input signal" always read the same voltage (about 4.5 V, like yours) *unless* I held the button down. In that case it gave a stable voltage within the expected range for each mode, just like in your original post with the info from VIDA. So try holding the button down, not just switching modes. The rest of the SUM values for my car were similar to those you have posted for your car.

Related question: If I remove the struts to replace the spring seats as will happen sometime soon, will I need to re-calibrate because the struts have been unplugged and out of the car?
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6 :shock: 135k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k

wessleym
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Post by wessleym »

erikv11, thank you for the information! It was very helpful!
1. I observed the same thing. I had just needed to put the car in drive while observing those values. It was cool to use the graph mode and watch the voltages change.
2. I cannot assure you of that. I know very little about it really.
3. Holding the buttons down was the trick. I thought I just had to push them briefly.
Thank you, erikv11! I can finally feel confident my S60 R is running correctly.

Regarding your question about replacing the spring seats, I don't know if you'll need to calibrate, but I would be interested to find out what happens. I would guess that, if you unplug the struts and then plug them back in with the battery disconnected, the car won't know anything changed. But I'm a novice. I would be interested to hear what happens, if you need to calibrate, and what your calibration results are. Thanks again!

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erikv11  
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Post by erikv11 »

Ok all good! I will try to remember to post here when I do the spring seats ...
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6 :shock: 135k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k

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