Question about 2002 Hyundai Accent

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Why am I still getting codes p1529 and po734 after replacing tcm and imput speed sensor when the car warms up?

.Already replaced both tcm and input speed sensor. Runs fine, then when warms up won't shift into high gear. Clear codes and runs fine again till warmed up, then kicks the code again.

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P0734 is a gear ratio code for 4th gear. In other words TCM sees 4th gear is slipping. P1529? I don't know I'm on my cell phone.

Posted on Dec 12, 2014

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Hello ! I replaced 2 speed sensors tcm now get a p0882 code so confused zzzz Thank you for any help


code p 0882 refers to transmission control module (TCM)--power input signal low ====causes--wiring--short to ground ---TCM
make sure that you haven't damaged any wires when you were replacing the sensors
check connections
replace the TCM

Aug 17, 2017 | Cars & Trucks

2 Answers

I have a trouble codes p0717 and p0700 on a 2006 Cadillac cts 3.6 the car shifts crazy and while pushing on the brake it locks up anyone know what's going on please help


P0717 is for the transmission input speed sensor , which inturn will bring up the other code P0700 for the Trans Control Module , so i would suggest having the codes cleared and see if they come back as sometimes a glitch can occour , if codes reappear and so do the symptoms i would replace the input speed sensor , it reads the primary pulley speed and sends info to the TCM and as far as i know there are no diagnostic s to carry out as this sensor either works properly or fails so get it changed and hope its not the TCM as well, keep me posted if you wish

Jul 30, 2015 | Cadillac Cars & Trucks

1 Answer

1999 jeep Cherokee classic. It will not go into 1st gear. It says it is the input speed sensor. Check gauge light comes on now. I replaced the alternator , input speed sensor and battery. Its over c


It says ? what says? the SCAN TOOL>?

non GRAND, (no engine stated, so fail there 1st)

my guess is you have a DTC and forgot to post that. why do that?

the DTC is covered in the FSM manual, and shows what is failing.

why not read the FSM and do what it says to do?



ill no attempt to read the FSM for you,. and that vague error.

why not log in to alldata.com and stop guessing. at parts.

there is no reason to gue$$



my guess at he DTC,

P0500"

or was it the P07xx series, all A/T errors.



P1xxx codes are factory code, got them? need all codes, not just 1 of many. and using a real scan tool not some POS autozoned junk (free)



p0500 is ASE jargon (best ) is VSS sensors.

vehicle speed sensor.



the transmission TCM monitors many inputs, and if they are bad

it can NOT shift, one such sensor is SPEED. MPH or VSS

the tail shaft all all 42RE transmission has a tail rpm sensor

when dead the cars speedometer goes dead, and the TCM

is at a lost to shift to 2nd gear, if speed is 0 all day.

a hopeless deal there.



if the battery voltage is not over 15v, its not overcharging, running.

99 is a nice jeep, id fix mine, ive had many.



the tranny has 2 speed sensors.

the front sensor does not do MPH, its just engine tranny input RPM

there are 3 RPM sensor

Engine, RPM called, CKP

tranny input sensor that tells the TCM true clutch slip at all time

and if the TCC works or not.

the tail shaft is the true speed sensor, vehicle speed, it\'s on tail shaft.



my guess, is the tail sensor is bad and you replaced the front sensor

P-0715 is a bad input sensor

P0720 and up are output sensor errors.

the 500 , is the 3rd sensor, the tail shaft sensor that runs the speedo

1st google hit.

http://www.jeepsunlimited.com/forums/showthread.php?548105-P0500-Vehicle-Speed-Sensor-Malfunction



next time post real DTCs

so we can jump on the exact part and the simple tests





the beauty of 3 sensors, is the transmission runs better

shifts better

and the OBD2 diagnostics are dead nuts, accurate.

it can see illegal gear slips (bad clutch packs) in any gear

and tell you. one of the best there.are

if you had new car, with 9speed, good luck keeping that card house going.. really.

Sep 26, 2014 | 1999 Jeep Cherokee

1 Answer

Transmission -does fine until it warms up, then does not want to shift correctly, drive begins flashing.


d flash mans, tranny fault
so scan it. us the obd2 scan tool, any and scan it.
the A/T IS VERY complex, do the tests shown in the FSM
guessing dont work
but in general (experience)
wont shift correctly dont cut it. (200 parts, and 50 was to mess up)
????
flare, skips gears, wont up shift, wont down shift, or shifts wrong speed. what gears work, what dont. just a clue and help goes get better
The tranny TCM can go to limphome mode, this mode is very clear.
and covered in the FSM and
one common failure, that happens with high mileage and poor service (not doing a flush at 50k miles)
is stuck in 1st gear, hot. only.
the ATF fluid gets more thin hot and pump output drops
this is usually a vary bad sign.
the Stall test fails.
the pump pressure test fails, hot.
there is no vacuum lines to this electronically shifted trans.
the ended back 1990(about). with old 3speeds.

scan it, could be something slimple like
the PRNDL shift switch fibbing like crazy. (common)
this car has TCM, a transmission brain.
look for OBD2 DTC errors P07xx (trans)
this TCM (part of PCM) function relies on sensor for shifting
they are:
1: TPS
2: engine INPUT rpm
3: tranny output rpm
4: shift selector.
5: ECT (engine temps)
6: ECU part of the PCM calculates load at all times and sends that to the TCM , so that TCM can down shift on hills, or upshift faster on the flat or down hill.
this LOAD feature is what replaced the VACUUM of old days.

The D light , hopefully is just a bad input (cheap)
scan it. and see, its begging for you to do that.

Jan 02, 2014 | 2001 Honda Odyssey

1 Answer

Code Po734 means on my BMW 2002 (3 series)?? I


PO734 is Gear 4 Ratio Incorrect, slip detected.

Possible causes:
  • Transmission Oil Level Low
  • Output speed sensor problem
  • Engine speed signal circuit between ECM and TCM: Open/Short circuit.
  • Transmission Mechanical Failure.

Sep 24, 2013 | Cars & Trucks

1 Answer

P1529 p0732


code p1529 refers to transmission control module-communication===causes --wiring-TCM and ECM
code p0723 refers to output shaft speed sensor (OSS)-circuit intermittent==causes--wiring--poor connection--OSS sensor --ECM /TCM
n both codes the TCM shows and the wiring may be a loose /dirty connection at the gear box level

Aug 31, 2013 | 2003 Hyundai Santa Fe

1 Answer

94 caravan in limp mode sometimes


i have had luck replacing the solenoid packs on these models but i usually had a 12 shift or 23 shift code stored in the tcm controller

Dec 05, 2012 | 1994 Dodge Caravan

1 Answer

Only code p0734 2001 caravan


Hi there:
This code means that the transmission is slipping in high gear and the TCM (TRansmission Control Mocule) logic thinks it has incorrect ratio since it monitors input and output speed. Keep in mind that TCM uses input from the input speed sensor and output speed sensor to determine gear ratios. The TCM then compares the known gear ratio to the calculated gear ratio for the current range.


Check HERE test procedure.


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Thank you for using FixYa, have a nice day.

Aug 24, 2012 | 1997 Dodge Caravan

1 Answer

Volvo S80 Faul code 000C


Hi there:
Diagnostic trouble code (DTC) TCM-000C is stored if the control module detects that the vehicle speed and engine speed (RPM) signals do not correspond with the programmed values and that an "incorrect" gear is being used in relation to the calculated gear. This is because solenoid S2 is stuck in open or closed position.

Diagnostic Codes: 000C, 002A, 002B, P0733, P0734, P0756
Tests/Procedures:
1. Clear codes from the Transmission Control Module (TCM).
2. With fluid hot, check transmission fluid for quality and level.
3. Test drive the vehicle. Accelerate from 20-60 MPH when in geartronic mode, gear 4. While doing this, watch input and output speed sensors with a scan tool.
4. If the code returns, the transmission is slipping, and the input and output speed sensors are updating, the problem is internal to the transmission.
5. If transmission is replaced, test ATF for coolant contamination per TNN 43-48. Replace radiator if necessary.

Potential Causes: Transmission Mechanical Problem

Tech Tips:
TCM-002B 4th gear. Incorrect gear ratio. This code sets when the actual gear ratio deviates by more than 10% of what is programmed into the TCM.
TCM-002A 3rd gear. Incorrect gear ratio P0756 - TCM-000C - Shift solenoid S2, hydraulic malfunction If the transmission is replaced, be sure the mating surfaces between the engine and transmission are bare metal and clean. If not, the engine may not start after assembly.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Feb 24, 2012 | 1999 Volvo S80

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