Question about 1999 Honda Accord

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Engine lite on

My 99 honda accord dx shows codes po700 and po740 what do they mean and my check engine lite stays on

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  • john_helly Nov 08, 2008

    96 civic 358k miles runs very well,trans shifts great no noticible performance problems yet the po700 code and the po740 code,I was hoping to find what needs to be repaired,I know they are trans related codes.

  • jbk1465 Mar 09, 2009

    2000 Dodge Stratus 100,000 miles check engine light started flashing on and off and then engine shut off. Few minutes later was able to start car back up. Now car will start but within driving for a few minutes it shuts down again. Brought to Auto Zone and this is the code po740.

    torque converter clutch

    no rpm drop @ lock up condition



    1. low fluid

    2. poor fluid

    3.defective toque conv. clutch

    4. internal trans. fluid



    What does this mean? And whats the best thing to do. Thanks for the help.

  • Anonymous Mar 13, 2014

    check engine light on code says PO700

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Po740 is possible bad torque converter or sometimes the o-ring around the torque convertor is not sealing around the torque this is what honda says about the code

Posted on Nov 22, 2008

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700= Transmission Control System
740= Torque converter clutch circuit

Posted on Oct 23, 2008

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It means you have an internal transmission problem. Your vehicle may fall under an extended warranty from Honda. Honda extended the warranty to 100,000 miles because they have alot of trans failures.

Posted on Mar 26, 2009

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Honda accord 2001 code PO700


P0700 HONDA Description The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. When the TCM detects a malfunction with the control, a signal is send to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code and it means the TCM detected a malfunction with the transmission control.

Read more: http://engine-codes.com/p0700_honda.html#ixzz21ghTELGA

Jul 25, 2012 | 2001 Honda Accord

2 Answers

Code p-0700 / p-0740 how to clear code


To clear the codes is the easy part, you can use a scan tool or remove the battery neg terminal for 5 mins but the codes will come back.

the PO700 is a code that tells you there is a ****** code which is the PO740 code. the PO740 code means the TCC circuit has a problem. this could mean there is a bad tcc solenoid or wire to tcc.

I would have this problem checked out asap. these vans have a lot of problems with the transmissions . your problem may be as simple as a solenoid pack problem. these vans with transmission problems can get costly, having it checked now would be wise. if you had a scan tool to get all ****** switches and solenoid value readings i would be able to help you check it but a ****** shop can check it with in an hour. good day.

Jun 24, 2012 | 2005 Dodge Grand Caravan

2 Answers

PO700 PO740, check engine light on. Run a test on


PO700 is a code telling you there are codes in the TCM of some late model cars where the Transmission control module has lost connection to the PCM the vehicals main computer , And basically it happens when the TCM has a issue within itself or the transmission that sets a code and it sends a request for the PCM to illuminate the SES or CHECK engine light.
PO740 is a chrystler specific code that involves your Tourqe Converter Clutch Circuit (specifically The TCC solenoid) this code if not repaired quickly could cause major transmission problems....slipping out of gear....not shifting from first to second properly and just all around trans problems...eventually leading to no shifting at all...I highly recommend fixing it soon.

Feb 22, 2010 | 2001 Dodge Caravan

1 Answer

What does error code PO740 for the check engine light mean


P0740 is Torque Converter Lock-up Solinoid Valve.

problem could be solinoid. but at same time it could be dead transmission.
this was taken from google litterally the 1st thing that popped up when i typed "p0740 honda accord"

Oct 10, 2009 | 1997 Honda Accord

1 Answer

1998 Chrysler Sebring Infinity Diagnostic Test Codes PO700, PO740


PO700=Transaxel control system
PO740=Torque converter lock up. No RPM's
I would take a good look at the transmission.

Jun 12, 2009 | 1998 Chrysler Sebring

1 Answer

Code PO740 and PO700 show on scanner for 2002 Chrysler Sebring LX. What's going on?


Best to have a transmission place work on this.
Here are the meaning of the codes:
P0700 Transmission Control System Malfunction
P0740 Torque Converter Clutch Circuit Malfunction

It maybe cheap to fix like a bad sensor. Or it maybe something serious going on. Best to have a transmission shop check it out.
Good luck.

Apr 14, 2009 | 2002 Chrysler Sebring

1 Answer

99 honda accord check engine lite


try to diconnect the neg side of the barrary for about 5 min. this will reset your computer.

Feb 28, 2009 | 2001 Pontiac Grand Am SE

1 Answer

1998 honda civic ex coupe


18c3536.jpg
P0700 means that a tranny code does exist...
rate me solved...I answered your request, right?

Jun 16, 2008 | 1998 Honda Civic

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