hey all, was lookin for a confirmation of sorts of my theory,
i have a 95 accord ex with an auto tranny and ive already checked the ecm,and tcm and only gotten codes for the vss, the speedo doesnt work (of course)
however the trans wont go past 2nd gear while driving,but according to my research and checking around, I found that if the ecm detects the vss is out it then sends a message to the tcm to not allow the trans to shift past a certain point as a failsafe to protect the trans,
so in conclusion if i change the vss it should correct the issue correct?
please lemme know when possible
thanks

 

SPEED SENSOR INPUT TEST

1. Check 10-amp fuse No. 24 in dash fuse box. Disconnect 3-pin connector from speed sensor, located on right side of engine.
2. Use an ohmmeter to check continuity between Black wire and ground. If continuity exists, go to next step. If continuity does not exist, check Black wire for an open circuit. Also check for poor ground.
3. Turn ignition switch to ON position. Use a voltmeter to check voltage between Yellow/Blue and ground. If battery voltage is present, go to next step. If battery voltage is not present, check Yellow/Blue wire for an open circuit.
4. With ignition on, check voltage between Yellow/White wire and ground. If voltage is about 5 volts, go to next step. If voltage is not as specified, check Yellow/White wire for an open circuit.
5. If continuity and voltage checks are okay, but speedometer/odometer/trip meter does not operate properly, replace speed sensor.

This is for a different car so wire colors and fuse numbers may not match, let us know what you find out.