FAST850R Posted February 17, 2010 Report Share Posted February 17, 2010 Hello, I need to replace the engine speedometer sensor. I got this transmission warning and check engine light, and a mechanic pulled a code. He said that I need to replace the sensor. I believe the code was P0715...something like that... If anyone knows where it is and how to replace it, please let me know. Thank you. Link to comment Share on other sites More sharing options...
jdlc Posted February 17, 2010 Report Share Posted February 17, 2010 Hello, I need to replace the engine speedometer sensor. I got this transmission warning and check engine light, and a mechanic pulled a code. He said that I need to replace the sensor. I believe the code was P0715...something like that... If anyone knows where it is and how to replace it, please let me know. Thank you. I know 94 has the sensor at the back side of the tranny (the back being the side facing the sidewall), while later 850s have them on the top towards the 'back'. Not exactly sure what year this tranny difference took effect. Mad Matt's pix of his 97 850 points to the speed sensor on later 850 models: Link to comment Share on other sites More sharing options...
FAST850R Posted February 17, 2010 Author Report Share Posted February 17, 2010 I know 94 has the sensor at the back side of the tranny (the back being the side facing the sidewall), while later 850s have them on the top towards the 'back'. Not exactly sure what year this tranny difference took effect. Mad Matt's pix of his 97 850 points to the speed sensor on later 850 models: Thank you so much for the picture. I will order the part and replace it. Link to comment Share on other sites More sharing options...
FAST850R Posted February 18, 2010 Author Report Share Posted February 18, 2010 I am waiting for the part right now. So I just need to take out the intake arm to access the sensor, correct? Anything that I need to know before I DIY it? Link to comment Share on other sites More sharing options...
FAST850R Posted February 24, 2010 Author Report Share Posted February 24, 2010 Hum...I got the part, but it doesn't look like a part in the picture above. It looks like THIS Is this the right part? I haven't had chance to check the sensor in my car, and before I use the part, I want to make sure whether this is the right part. I found THIS, and the picture looks different from what I ordered. Link to comment Share on other sites More sharing options...
Ozark Lee Posted February 25, 2010 Report Share Posted February 25, 2010 The part pictured is the RPM sensor, not the vehicle speed sensor. On '95 and earlier cars the Vehicle Speed Sensor is mounted more or less midway between the axles on the rear of the transaxle. On '96 and newer cars it is a signal from your ABS module that gets its signals from the wheel sensors. What year is your car and is your ABS light on? ...Lee Link to comment Share on other sites More sharing options...
FAST850R Posted February 25, 2010 Author Report Share Posted February 25, 2010 The part pictured is the RPM sensor, not the vehicle speed sensor. On '95 and earlier cars the Vehicle Speed Sensor is mounted more or less midway between the axles on the rear of the transaxle. On '96 and newer cars it is a signal from your ABS module that gets its signals from the wheel sensors. What year is your car and is your ABS light on? ...Lee Thank you for the reply. My car is 1996 and no abs light is on. I got transmission warning arrow flashing and check engine light is on. I took my car to a mechanic and he pulled a code. He said the speedometer sensor needs to be replaced. So I ordered the sensor from fcp, and that was what I got. The site shows that the part is the speedometer sensor. Can anyone show where is the speedometer sensor for 96?? Link to comment Share on other sites More sharing options...
weston97glt Posted February 26, 2010 Report Share Posted February 26, 2010 Have you replaced your abs module yet? When my module went bad, i got codes for a speed sensor also. I replaced the module and was code free. Ty disconnecting the wiring harness on the abs module, blowing on it to get any debris out and reconnect it, usually helped for me until i bought a rebuilt module from bbareman.com. Best of luck to ya. Link to comment Share on other sites More sharing options...
FAST850R Posted February 26, 2010 Author Report Share Posted February 26, 2010 Have you replaced your abs module yet? When my module went bad, i got codes for a speed sensor also. I replaced the module and was code free. Ty disconnecting the wiring harness on the abs module, blowing on it to get any debris out and reconnect it, usually helped for me until i bought a rebuilt module from bbareman.com. Best of luck to ya. Thank you for the reply. A PO replaced ABS module so it is fine, but I will do as you said. The transmission warning light disappeared by itself, 2 days ago. Since nobody knows where is the speedometer sensor, I took my car to a mechanic, and he said that it's down below the intake arm. I asked him to change it for me, but he said he doesn't put a part that customers bring. So I have to put it myself, but the problem is, I still don't know where it is. I took off the intake arm and checked the area that the mechanic said, but there was no part looks like the one that I got from FCP. Does anyone have a shop or dealer manual for 1996 850r? Link to comment Share on other sites More sharing options...
FAST850R Posted February 26, 2010 Author Report Share Posted February 26, 2010 Ok, this is what I think. Since my car is 1996, maybe it's early model and it was built in 95....so the sensor actually located where 1995 transmission is... If that is the case, the sensor is located back of the tranny, and it seems like I have to go under to check it.... Is my theory possible? I might check it tomorrow if I have time... Link to comment Share on other sites More sharing options...
FAST850R Posted February 28, 2010 Author Report Share Posted February 28, 2010 Ok, now I found out what was wrong with the part that I ordered and why I was confused. The part that I got from FCP is for Volvo 850 from 1993~1995, which mounted on back of the transmission close to firewall. FCP site shows that the speedometer sensor is for volvo from 1994~1997 so I thought it was the right part, but I was wrong. If you check the site, it shows specific vin number for the part. Anyway, I am going to return the part tomorrow. Like other members mentioned above, after I disconnected and reconnected ABS sensor, I got tracs off & ABS sensor light. I disconnected battery about 10~20 sec but check engine light, abs, and tracs light is still on. I said the abs module was replaced by PO, but I was wrong. I checked maintenance paper that I got from PO, but I couldn't find anything about ABS. Either he lied to me or he was misunderstanding. Anyway, since I got those light, should I just take the abs module out and send it to a guy who rebuilds it? or should I pull obd II code first? Well since I got code for speedometer sensor, and now I got abs and tracs light, it's kind of obvious that abs module is going south? Can I keep driving like this for a while? Any advice on this? Thank you. Link to comment Share on other sites More sharing options...
FAST850R Posted February 28, 2010 Author Report Share Posted February 28, 2010 I decided to fix the module myself. It looks pretty easy to do. Now, I need to order the e-5 torx socket, and one of a member said the part number is 26770. Can I order e-5 torx socket that has a different part number? I found THIS and I think it's the same one. Anyone can confirm this before I order it? Thanks. Link to comment Share on other sites More sharing options...
bergmjs Posted February 28, 2010 Report Share Posted February 28, 2010 A socket is a socket. The torx shape and sizes are standardized so as long as it says external-torx (E-Torx) size 5 it should work. Link to comment Share on other sites More sharing options...
FAST850R Posted March 1, 2010 Author Report Share Posted March 1, 2010 A socket is a socket. The torx shape and sizes are standardized so as long as it says external-torx (E-Torx) size 5 it should work. Thanks, I ordered it. Link to comment Share on other sites More sharing options...
fastwagonhawaii Posted June 24, 2010 Report Share Posted June 24, 2010 I decided to fix the module myself. It looks pretty easy to do. Now, I need to order the e-5 torx socket, and one of a member said the part number is 26770. Can I order e-5 torx socket that has a different part number? I found THIS and I think it's the same one. Anyone can confirm this before I order it? Thanks. you also can use a 5/32 or smething like that and it works perfectly. so dont have to buy new tools :D Link to comment Share on other sites More sharing options...
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