97 Accord Auto trans problems
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97 Accord Auto trans problems
My 97 wagon suddenly stopped shifting last nigth. It will start out but about the time it shoud go into second, it starts slipping badly. The rpms will go to the max and the car will stop. Never had an issue with this transmission until last night,. Fluid always serviced with Honda fluid. It looks pink and clear, No burnt smell. Any idea? Oh, the D4 indicator lamp bulb has been burned out for a year.
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P0715... speed sensor, but the speedometer and cruise is working okay. The problem seems to be intermittent. Occassionally it shifts fine, most of the time it is slow and late to shift from 1st to 2nd, then maybe it will to to third maybe not with rpms just going higher. There was a noticeble whine when I started it this morning. Reverse is okay.,
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
P0715 is not the Vehicle Speed Sensor, but the Mainshaft Speed Sensor (MSS). Code indicates a fault in the MSS, wiring, connector, or PCM. Disconnect MSS and check resistance w/ VOM. It should be w/i 400-600 ohm range. If not in spec, the MSS is faulty, wiring, or connector.
If in spec, check resistance again at the PCM connector for same wires. If ohms again check OK, the PCM is the problem.
good luck
If in spec, check resistance again at the PCM connector for same wires. If ohms again check OK, the PCM is the problem.
good luck
Been Around A Long Time Member
Joined: Jul 2011
Posts: 1,008
From: Denver
Also, check out TechAuto's AwardSpace transmission troubleshooting/repair website. This caught my eye:
Author's tip on the NM/NC sensors: Usually, these sensors can pick up a lot of metal particles or metal dusts which can magnetically pile on top of the sensor surroundings. On some vehicle, the control unit simply won't function properly and the car can jerk harshly. On these cases, I simply remove the sensor then wipe and wash out the metal debris and reinstall. I then reset the computer. Everything would work as it should. The buildup of materials simply won't let the sensor read.
Thread Starter
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Member
Joined: Jan 2010
Posts: 143
From: Male or Female Name
P0715 is not the Vehicle Speed Sensor, but the Mainshaft Speed Sensor (MSS). Code indicates a fault in the MSS, wiring, connector, or PCM. Disconnect MSS and check resistance w/ VOM. It should be w/i 400-600 ohm range. If not in spec, the MSS is faulty, wiring, or connector.
If in spec, check resistance again at the PCM connector for same wires. If ohms again check OK, the PCM is the problem.
good luck
If in spec, check resistance again at the PCM connector for same wires. If ohms again check OK, the PCM is the problem.
good luck
Last edited by wunderbra; Oct 8, 2013 at 08:05 AM.
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