1998 S90 Transmission upshift light blinking

[toddio]

My 1998 S90 transmission upshift light is blinking along with the W, S and E lights

[93Regina]

My 1998 S90 transmission upshift light is blinking along with the W, S and E lights

Buy/Get OBD II scanner and get fault code(s).

[RCR]

Trans codes will not pull from a hand held scanner on these cars. I Just experienced the same thing and you will have to find some shop with the Volvo software loaded or go to a dealer. You can reset the codes with a handheld but it won't read out the TCM codes.

[93Regina]

Trans codes will not pull from a hand held scanner on these cars..

Maybe just cheap ones can't?

2manyturbos says, If you have a proper scanner, yes, the OBDII system will give trouble codes for the transmission.

[RCR]

Trans codes will not pull from a hand held scanner on these cars..

Maybe just cheap ones can't?

2manyturbos says, If you have a proper scanner, yes, the OBDII system will give trouble codes for the transmission.

NO scanner will pull trans codes on these cars no matter how expensive unless they have the Volvo specific software loaded. Been through this once before and the Volvo software pac is over a grand for an independent shop to buy so----. My local Volvo dealer wanted $80 just to hook up and run the codes.
Normal scanners will pull the systems only mandated by the feds under OBDII to pull. Get out of that arena into some thing like trans codes and you need the full Volvo software pac that most independent shops who don't do a lot of Volvo work ( and that includes many Transmission shops BTW) simply aren't going to pay the big fees for to access the Volvo software.
Know this from experience a few years ago where I had a minor wiring issue that was a real PITA to run down because I simply could not access the code it was pulling. The repair was as simple as replacing a plug that was damaged by time and corrosion but with out a way to pull the code you were shooting in the dark. I know all this because i had a current issue with my V-90 pulling a trans code and am going through this again right now. Have a decent hand OBD II scan tool that will clear the codes but is reading absolutely nothing with a flashing up shift light mode light and Check Engine light on right now. Pull the scans and it shows no trouble codes stored in the system, go through all the live modes and check everything I can read and it's all clean. However I have dash lights staring me in the face and the cruse control resets then shuts down after you clear the codes. Your ( just like i am right now also BTW ) pretty much dead in the water until you find a way to pull those trans codes and start backtracking from the code chart.
You can find the trans trouble code chart on line and it is easy to use and think through a problem but you must find a way to get the code to start tracking things down.

[jimmy57]

cruise and trans both use the processed speedo signal the instrument cluster makes. The speed sensor signal from diff is a 48 pulse/rev analog sine wave (ac voltage) and the cluster passes that through an A/D converter circuit and provides the digitized signal to the ECC, Radio, TCM, and cruise control module.
ABS uses the raw analog signal.
You mention no ABS lamp so your problem fits the failure that occurs in instrument cluster where the A/D circuit fails. This is not common but I have replaced a couple of clusters for this very problem.

If you get a used cluster it has to be 96-98 as the coolant gauge on those is supplied an ECT signal from ECM. 95 and down use a direct wired ECT sensor separate from the sensor the ECM is wired to.

[RCR]

Got a separate thread going on the flashing upshift light issue with my V-90 but looks like the last reply here was more on my issue. Got a new wrinkle on mine. Did a full reset ( pull battery and let sit for 5 then re connect + code clear with my OBD2 hand scanner) and the codes were gone for a while but the cruse staid dead. Everything else seemed normal in opp till the code came back and instantly when the code set the converter unlocked. Is converter lock up controlled by the speed input also from the cluster? Reason I ask is it seemed to be on the 45 MPH norm until the code reset then shut down on lock up.
Would be nice here to just pull the codes but so far none of my buddies with independent shops can access the trans codes off their scanners nor can I ( this forum needs the bang head at brick wall smiley to add here !!)

[93Regina]

NO scanner will pull trans codes on these cars no matter how expensive

SOLUS Ultra® Full-function Scan Tool
EESC318W
List Price $3895.00 USD

View PDF, which has specs on page 183; that said, it would appear this unit works with 2000+ years.

2manyturbos is a Volvo independent mechanic...I'm not aware of him blowing smoke.

[93Regina]

Would be nice

See this thread here: 1998 V-90 lost cruse suddenly then flashing up arrow.

[RCR]

NO scanner will pull trans codes on these cars no matter how expensive

SOLUS Ultra® Full-function Scan Tool
EESC318W
List Price $3895.00 USD

View PDF, which has specs on page 183; that said, it would appear this unit works with 2000+ years.

2manyturbos is a Volvo independent mechanic...I'm not aware of him blowing smoke.

Solus ( supposedly) works with 2000+ but will not pull the TCM codes on the 98 V90 with out a software package added. Point is the diagnostic gear I have access to here so far even from larger independents and local trans shops won't touch the TCM codes on the V-90. I had the car sold tomorrow and the issue showed unexpectedly on a short road trip shakedown as the buyer was from out of State. In other words I am VERY motivated to pull these codes and run this problem down but so far am striking out with all the close to me shops I know.
All this is what makes me drive older stuff because this is not just a Volvo issue it's every freeken thing now days!