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Shift problem code p0746 2006 sienna

Code p0746 replaced valve body and reflashed pcm still have same problem where do i go next

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RamTek
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SOURCE: 2004 Toyota Sienna will not shift out of Park after replacing dead battery.

Hi,

When you start the vehicle try to step on the brake pedal then try to shift it to drive or park.

Posted on Jan 12, 2015

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P0753, p0758 and p91860 what's my problem and how do I fix it?


Your best bet would be to take your vehicle to a ASE certified professional . You do not have the tools to diagnose this or the information.
DTC P0753
The 1-2 shift solenoid (1-2 SS) valve controls transmission fluid pressure acting on the 1-2 shift valves to position the valves for the appropriate gear. The 1-2 SS valve is a normally-open exhaust valve located on the control valve body. A fused circuit supplies ignition voltage to the 1-2 SS valve. The PCM commands the solenoid ON or OFF by switching the ground path. When the 1-2 SS valve is commanded ON, the PCM senses low voltage. When the 1-2 SS valve is commanded OFF, the PCM senses high voltage. Refer to Shift Solenoid Valve State and Gear Ratio .
If the PCM detects a continuous open, short to ground or short to power in the 1-2 SS valve circuit, then DTC P0753 sets. DTC P0753 is a type B DTC.
DTC P0753 sets when one of the following conditions occurs for 5 seconds:
Condition 1 The PCM commands the solenoid ON and voltage feedback remains high, B+.
Condition 2 The PCM commands the solenoid OFF, and the voltage feedback remains low, 0 volts.
DTC P0758
The 2-3 shift solenoid (2-3 SS) valve controls transmission fluid pressure acting on the 1-2 and 2-3 shift valves to position the valves for the appropriate gear. The 2-3 SS valve is a normally-open exhaust valve located on the control valve body. A fused circuit supplies ignition voltage to the 2-3 SS valve. The PCM commands the solenoid ON or OFF by switching the ground path. When the 2-3 SS valve is commanded ON, the PCM senses low voltage. When the 2-3 SS valve is commanded OFF, the PCM senses high voltage. Refer to Shift Solenoid Valve State and Gear Ratio .
If the PCM detects a continuous open, short to ground or short to power in the 2-3 SS valve circuit, then DTC P0758 sets. DTC P0758 is a type A DTC.
Conditions for Setting the DTC
DTC P0758 sets when one of the following conditions occurs for 5 seconds:
Condition 1 The PCM commands the solenoid ON and the voltage feedback remains high, B+.
Condition 2 The PCM commands the solenoid OFF and the voltage feedback remains low, 0 volts.
What's this p91860 , no such code .

Apr 02, 2016 | 2003 Pontiac Aztek

1 Answer

2-3 shift solenoid circuit


P0758 Chevrolet P0758 Chevrolet - 2-3 Shift Solenoid Circuit Electrical
Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty 2-3 Shift Solenoid Valve
- 2-3 Shift Solenoid Valve harness or connectors
- 2-3 Shift Solenoid Valve circuit is open or shorted
What does this mean? When is the code detected?
When the Powertrain Control Module (PCM) detects a continuous open, short to ground or short to power in the 2-3 Shift Solenoid (SS) valve circuit, then DTC P0758 sets.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission will not shift gears
P0758 Chevrolet Description
The 2-3 Shift Solenoid (SS) valve controls the fluid flow acting on the 2-3 shift valves. The 2-3 SS valve is a normally-open exhaust valve that is used with the 1-2 SS valve in order to allow four different shifting combinations. The solenoid attaches to the control valve body within the transmission. The Powertrain Control Module (PCM) controls the solenoid by providing the ground path.

Read more: http://engine-codes.com/p0758_chevrolet.html#ixzz3kcwzXFmK

Jul 14, 2014 | 2000 Chevrolet Silverado 1500

1 Answer

Trans does not shift properly has code p0746


line pressure control solenoid "a" fault test for power to solenoid . basically the pcm has detected a the wrong gear ratio for the gear selected Slipping transmission.

Apr 18, 2014 | 2006 Toyota Sienna

1 Answer

I have 2006 crown victoria p71 car starts but no accleration


Both codes are for the throttle actuator control, and could have been set when you ran the engine with the component unplugged.
I would have the codes cleared and see if the computer resets the default settings next.

Dec 18, 2012 | 2006 Ford Crown Victoria

1 Answer

I have code po750


Possible causes - Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid A valve
- Shift solenoid A valve harness or connectors
- Shift solenoid A valve circuit is open or shorted help.png Help with this Tech notes When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.
help.png Help with this When is the code detected?The P0750 code is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.

Nov 06, 2012 | 2002 Toyota Sienna

3 Answers

I have a 98 Chevy s10 4.3L Vortec 2WD. Replaced transmission with another 4L60E and it want shift. What's the problem? It will shift if you manually down shift it but it want shift anymore! When you...


Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
Bottom line here it needs to be scanned to see what is going on, quit guessing.

Aug 25, 2012 | Cars & Trucks

1 Answer

I changed the 3-4 shift soleniod but now i dont have any gear but 2nd and before we had 1-3 just not over drive. what could have went wrong?


There is no code that tells you to replace the shift sdolenoid. There is a code (P0783) That has a generic description of "3-4 Shift Malfunction". Please note that there are several things that can cause this code. This code DOES NOT mean to replace the shift solenoid without first diagnosing the other possible causes of this code.
P0753 is for the "3-4 Shift Solenoid/Transmission Relay Circuit" If this is the code you had, please note that this code is a CIRCUIT code. The circuit includes the 3-4 shift solenoid, the transmission power relay and all the the wires and connectors connecting the power relay, the solenoid, and the PCM together. In this case the CIRCUITS must be diagnosed prior to replacing ANYTHING.

With all that said, is there now, or was there originally any other codes in the system besides one of these? If so, what are/were they? It is possible that there is a relay fault that is causing ALL of the shift solenoids to malfunction. It is also possible that there is low line pressure causing your no-shifting problem. Then there is the question: Are you absolutely certain that you replaced the correct solenoid?

I have also seen the shifting problems worsen due to misdiagnosis. Example: the power relay is causing the problem...the 3-4 shift solenoid gets changed...the transmission valve body is now full of air because the transmission was drained and the shift solenoid was removed from the valve body causing the valve body to drain...everything gets put back together and the transmission fluid is replaced....Now the transmission will not shift in any gear because the valve body cannot purge the air due to the solenoids being inoperative. They were inoperative in the first place and are still inoperative because the wrong part got replaced. PROPER diagnosis and repair will get everything working again.

I would recommend starting over to see what codes you now have and diagnose the system accordingly.

Sep 23, 2011 | 1999 Dodge Durango

2 Answers

Mazda 3 code p0734


DTC P0734 Gear 4 incorrect (incorrect gear ratio detected) DETECTION CONDITION
• The PCM monitors revolution ratio of the forward clutch drum revolution to the differential gear case revolution when the following monitoring conditions are met. If the revolution ratio is below 0.6 or 1.25 or more, the PCM determines that there is a malfunction. Monitoring condition: - ATF temperature 20 °C {68 °F} or more - Driving in 4 GR in D or M range - Engine running - Turbine speed within 225-4,987 rpm - Vehicle speed 50 km/h {31 mph} or more - Closed throttle position - Differential gear case (output) revolution speed 35 rpm or more - None of the following present: DTC P0500, P0706, P0707, P0708, P0712, P0713, P0715, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773 Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate. • The AT warning light illuminates if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA is not available. • A PENDING CODE is not available. • The DTC is stored in the PCM memory. POSSIBLE CAUSE
• ATF level low • Deteriorated ATF • Shift solenoids A, B or C stuck • Pressure control solenoid stuck • Line pressure low 2-4 brake band slipping 3-4 clutch slipping • Forward clutch slipping • Control valve stuck (Bypass or 3-4 shift valve) • Oil pump malfunction • PCM malfunction
Diagnostic procedure
STEP INSPECTION ACTION 1 VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? Yes Perform repair or diagnosis according to the available repair information. No Go to the next step. 2 INSPECT ATF CONDITION
• Inspect the ATF condition. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION.) • Is it normal? Yes Go to the next step. No Replace the transaxle, then go to Step 8. 3 INSPECT ATF LEVEL
• Start the engine. • Warm up the ATX. • Is the ATF level within the specification? (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION.) Yes Go to the next step. No Add ATF to the specified level, then go to Step 8. 4 INSPECT SHIFT SOLENOID VALVE A AND D FOR CLICK SOUND
• Perform operation inspection. (See SOLENOID VALVE INSPECTION.) • Verify the click sound of shift solenoids A and D when applying B+ to each transaxle terminal. Note • The click from solenoid D is barely audible. Remove solenoids to correctly inspect if necessary. • Was a click heard from solenoids? Yes Go to the next step. No Replace the solenoid where you could not hear click sound, then go to Step 8. (See SOLENOID VALVE REMOVAL/INSTALLATION.) 5 INSPECT LINE PRESSURE
• Start the engine. • Measure the line pressures. Specification
Idle: 330-470 kPa {3.4-4.7 kgf/cm2, 48-68 psi}
Stall:
1,090-1,250 kPa {11.2-12.7 kgf/cm2, 159-181 psi} (Z6)
1,160-1,320 kPa {11.8-13.5 kgf/cm2, 168-191 psi} (LF)
• Are the line pressures within the specifications? (See Line Pressure Test.) Yes Go to the next step. No All ranges: Replace the oil pump, then go to Step 8. Any ranges: Replace the control valve body, then go to Step 8. (See CONTROL VALVE BODY REMOVAL.) (See CONTROL VALVE BODY INSTALLATION.) 6 INSPECT STALL SPEED
• Measure the stall speed in D range. (See Stall Test.) Specification
2,100-2,700 rpm (Z6)
2,000-2,600 rpm (LF)
• Is the stall speed within the specification? Yes Go to the next step. No Replace the automatic transaxle, then go to Step 8. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [Z6].) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [LF].) 7 INSPECT FREQUENCY OF INPUT/TURBINE SPEED SENSOR WHEN DRIVING VEHICLE
• Turn the ignition switch to the LOCK position. • Connect the WDS or equivalent. • Start the engine. • Measure the frequency of input/turbine speed sensor while driving vehicle under the following conditions: - Vehicle speed (VSS PID): 80 km/h {49 mph} - Drive in the D range, 4GR - Throttle opening angle (TP PID): approx. 25% • Was the frequency of the input/turbine speed sensor at approx. 1,200 Hz? Yes Go to the next step. No Replace the control valve body, then go to the next step. (See CONTROL VALVE BODY REMOVAL.) (See CONTROL VALVE BODY INSTALLATION.) 8 VERIFY REPAIR OF DTC P0732
• Make sure to reconnect all the disconnected connectors. • Clear the DTC using the WDS or equivalent. • Start the engine. • Warm up the transaxle. • Drive the vehicle under the following conditions for more than 5 s: - ATF temperature: 20 °C {68 °F} or more - Drive in the D range, 4GR - Throttle opening angle (TP PID): 0% - Vehicle speed (VSS PID): 50 km/h {31 mph} or more • Are any DTCs present? Yes Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [ZJ, Z6].) (See PCM REMOVAL/INSTALLATION [LF].) No Go to the next step. 9 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? Yes Go to the applicable DTC inspection. No DTC troubleshooting completed. click here to refer to this reference.
if you need further assistance please let me know and i will be glad to assist you further. Thanks, Midwest-tek

Aug 31, 2010 | Mazda MAZDA3 Cars & Trucks

1 Answer

2003 Chrysler 300 check engine codes p0700 and 1776, car occasionally drops into 2nd gear - limp home mode - and will not shift out. Turning off car corrects the problem for and hour or for days. Does this...


THERE IS A TECHNICAL SERVICE BULLETIN FOR P1776..SOLENOID SWITCH VALVE LATCHED IN THE LOW/REVERSE POSITION..YOU NEED TO HAVE SCANNED AGAIN AND HAVE "EVENT DATA" READ..
LOOKING FOR TRS CODE..IF IT READS TR2,YOU NED TO HAVE TRANS SHIFT CABLE ADJUSTMENT CHECKED AND FOR BINDING AS WELL..IF IT READS OD,VALVE BODY OF TRANS MAY HAVE A STICKING SOLENOID SWITCH VALVE IN VALVE BODY..ALSO IF TRS CODE LEADS YOU TO VALVE BODY ISSUE..YOU NEED TO HAVE SOLENOID PACK BUILD DATE CODE CHECKED..IF IT FALLS IN A CERTAIN DATE,YOU REPLACE THE SOLENOID PACK,NOT THE VALVE BODY..A GOOD TRANS SHOP OR CHRYSLER DEALER WILL BE ABLE TO DIAGNOSE THIS PROBLEM..ALSO TCM IS PART OF PCM ON THIS YEAR VEHICLE AND YOU CANNOT SWAP ONE FROM ANOTHER VEHICLE..BUT I DON'T THINK YOU HAVE A CONTROLLER ISSUE..THE LH VEHICLES I HAVE SEEN WITH THIS PROBLEM THE SOLENOID PACK ON TOP OF THE VALVE BODY IS THE TROUBLE..I WORK AS A CHRYSLER TECH..13 YEARS EXPERIENCE

Jul 16, 2009 | 2003 Chrysler 300M

1 Answer

2001 ESPACE 2.0L AUTO NO REVERSE HELP PLEASE


your trans has lectronic controls to operate the shifting of your trans. If there is a defect, a fault code will be stored in the computer, called a DTC. You need to have someone with a scan tool check for the fault code. It is likely a solenoid that is not working or stuck.

Get the codes first. Autozone can run the test for free on engines, maybe trans codes too. Call your local Autozone or big parts store and ask them.

----------
SECTION 307-01: Automatic Transaxle/Transmission 2001 Escape Workshop Manual
DESCRIPTION AND OPERATION Transaxle Description The CD4E automatic transaxle is a four-speed, front wheel drive automatic transaxle with electronic controls for:
  • Electronic pressure control (EPC) solenoid for shift quality.
  • Shift scheduling.
  • 3-2 shift timing.
  • Coast braking.
  • Torque converter clutch control.
The transaxle features a four element torque converter with a torque clutch and a geartrain that includes:
  • Compound planetary gearset.
  • Chain drive.
  • Planetary gearset final drive.
  • Pinion and side gear differential.
The hydraulic control system of the transaxle has five solenoids that control:
  • Shift feel, through line pressure control.
  • Shift scheduling, through shift valve positioning control.
  • Modulated application of the torque converter clutch.
  • Timing of 3-2 shifts.
  • Engine braking during coast operation.
----------------------------
Solenoid Valve Body Assembly The solenoid valve body assembly contains the transmission fluid temperature sensor (TFT) sensor, as well as five PCM controlled output devices:
  • Electronic pressure control (EPC) solenoid.
  • Shift solenoid A (SSA).
  • Shift solenoid B (SSB).
  • 3-2 timing/coast clutch solenoid (3-2 T/CCS).
  • Torque converter clutch (TCC) solenoid.
---------------------------------
You may need your PCM, Powertrain Control Module reflashed by a Ford Dealer.
Try disconnecting your battery for 1/2 hour and then reconnect and see what happens. It will run a little rough and shfit hard until it relearns your engine/trans characteristics.
Let us know results of tests and DTC codes if you get them.

May 04, 2009 | Renault Sportwagon Cars & Trucks

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