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Hi, I'm new to this forum. I drive a 2001 Nissan Serena with CVT transmission. 3 days ago it started blinking the sport light about 5 times when I put the ignition on and when i put it in drive, it would not change ratios. it was like its stuck in first gear. Now the sport light blinks 16 times and it still does not change ratios. i checked the CVT transmission fluid and its seems ok. Can anyone please advise what the problem might be. I asked the local dealer and the asked me to bring the car in but are a few KM away and can't drive the car there. They never sold the Serena and they said they don't have NS-1 transmission fluid but have got NS-2 for Muranos. Can I use NS-2 instead of NS-1. Would appreciate it if you could help me resolve my issue. Thanks
The dealer should be able to order the correct fluid. At first I thought NS-2 replaced NS-1, but after looking it up, that is wrong. Nissan used 2 different style CVT transmissions and each uses it's own fluid. I've seen that you can't use NS-1 in a NS-2 car, but I'm not sure about the other way around. Either way, I would have them order the correct fluid.
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1996 200SX SE-R VE powered
2004 Subaru Forester turbo
2006 Mitsubishi Evolution IX
Thanks eric96ser. I will get them to order the correct fluid. New development. The dealer says he wont use his diagnosis machine on an imported vehicle. Do you recon the CVT not shifting is being caused by a change in transmission fluid viscosity or low level?
Is there a generic diagnostic machine that one can buy and use to test themselves. I'm now stuck in first just like my transmission!!!!.
Thanks eric96ser. I will get them to order the correct fluid. New development. The dealer says he wont use his diagnosis machine on an imported vehicle. Do you recon the CVT not shifting is being caused by a change in transmission fluid viscosity or low level?
Is there a generic diagnostic machine that one can buy and use to test themselves. I'm now stuck in first just like my transmission!!!!.
Anyone out there ever had the same problem. I'm stuck!!! Is there a generic diagnostic cable and software I can buy to check errors and clear them myself?
Hi, I have the same problem with my Serena, has anybody found out what the issue it as yet? Mines been to a Nissan dealer and to a vehicle examiner and im still none the wiser.
Let me start by saying that I know nothing about the Nissan CVT's. However, "traction drives" have been around in machinery circles for years. They are usually two plates or discs that are not concentric. They "squeeze" a metal ball (i.e. like a bearing). This ball runs from the inner radius to the outer radius of one disc and the outer radius to the inner radius of the other. When the ball is at the inner radius of the drive disc, it is at the out radius of the driven disc and the ratio is the highest numerically (low gear). as the ball moves toward the outer radius of the drive gear and the inner radius of the driven gear, the ratio reduces (high gear). This can also be done by a belt riding over two cone shaped cylinders, where the cones are facing in opposite directions.
However the Nissan CVT is designed, it sounds like the mechanism that moves the ball (or similar object) is not working. This is probably internal to the transmission and hydraulic in nature. It could be pressure operated, in which case a pump is involved. So the problem could be fluid, seals, worn or broken pump parts. Most likely, putting the lever in "D" activates a valve to get everything working, so that could also be a problem.
A proper Nissan dealer should have someone who has been trained to disassemble and repair these units.
You could drain the oil out and look for bits of metal or rubber. Beyond that, it is time for a FSM.
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"If everything seems under control, you're just not going fast enough." - Mario Andretti
Another thought. Does the shift lever move a lever on the transmission, or just activate a switch. If it is a switch, then follow the wires to the transmission. They will activate a solenoid valve. Perhaps the solenoid is bad.
I seem to recall that the shifter is just a switch more or less (other than maybe a parking lock), but if it's stuck in low ratio, then it's not likely the shifter.
I also seem to recall that Nissan dealers/service can't and won't do a CVT rebuild, they just replace the transmissions with a reman'd unit and send out the core to somewhere.
I HAVE NISSAN SERENA 2001 SR20DE automatic trasmission.
Automatic transmission doesnot change from 1st to 2nd gear after driving about an hour on short routes in 1ST, 2ND, 3RD GEAR.
After switching off the engine for a while when i on it again the sport light starts blinking then the automatic transmission is on 3rd gear and does not shift to 1st or 2nd.
However after 2 to r hours swiching off the engine it came right.
Please if any one can solve the problem. As I checked the computer box, it shows previous codes of sensor malfunctioning, after removing it few days it was right but then same problem came. Automatic transmission in computer box looks ok and fluid also is ok.
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