P1759: automatic transaxle (FR/B Solenoid FNCTN)

DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION AT-147 T Revision: October 2004 2005 Titan DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION PFP:31940 Description ECS00B07 ? Front brake solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be shifted to the optimum position. ? This is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such as control valve sticking, improper solenoid valve operation. CONSULT-II Reference Value ECS00B08 On Board Diagnosis Logic ECS00B09 ? This is an OBD-II self-diagnostic item. ? Diagnostic trouble code "P1759 FR/B SOLENOID FNCT" with CONSULT-II is detected under the following conditions.
On Board Diagnosis Logic ECS00B09 ? This is an OBD-II self-diagnostic item. ? Diagnostic trouble code "P1759 FR/B SOLENOID FNCT" with CONSULT-II is detected under the following conditions. - When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of ATF pressure switch 1 is irregular during depressing accelerator pedal. (Other than during shift change) - When TCM detects that relation between gear position and condition of ATF pressure switch 1 is irregular during releasing accelerator pedal. (Other than during shift change) Possible Cause ECS00B0A ? Harness or connectors (The solenoid and switch circuits are open or shorted.) ? Front brake solenoid valve ? ATF pressure switch 1 DTC Confirmation Procedure ECS00B0B CAUTION: Always drive vehicle at a safe speed. NOTE: If "DTC Confirmation Procedure" has been previously performed, always turn ignition switch "OFF" and wait at least 10 seconds before performing the next test. After the repair, perform the following procedure to confirm the malfunction is eliminated. WITH CONSULT-II 1. Start engine. 2. Accelerate vehicle to maintain the following conditions.
2. Accelerate vehicle to maintain the following conditions. ACCELE POS: 1.5/8 - 2.0/8 Selector lever: "D" position Gear position: 3rd
4th Gear (FR/B ON/OFF) Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test. 3. Perform step "2" again. 4. Turn ignition switch "OFF", then perform step "1" to "3" again. 5. Check "SELF-DIAG RESULTS" mode for "A/T" with CONSULTII. If DTC (P1759) is detected, refer to AT-148, "Diagnostic Procedure" . If DTC (P1757) is detected, go to AT-146, "Diagnostic Procedure" . If DTC (P1841) is detected, go to AT-167, "Diagnostic Procedure" .

P1759 NISSAN - Front Brake Solenoid Valve Function
Possible causes
Faulty Front Brake Solenoid Valve
Front Brake Solenoid Valve harness is open or shorted
Front Brake Solenoid Valve circuit poor electrical connection
www.autocodes.com/p1759_nissan.html
Service bulletin for a various Nissan Models with the RE5R05A transmission
www.autocodes.com/uploads/nissan/NTB10-003a.pdf

What are you talking about auto shift control solenoid ? Which transmission does yours have ?
Automatic Transaxle - 3T40 Automatic Transaxle - 4T40-E
1-2 Shift Solenoid Valve
In transmission valve body
Transmission Component Location
Automatic Transmission Internal Connector End Views
2-3 Shift Solenoid Valve
In transmission valve body
Is there a DTC - diagnostic trouble code stored ? Which gear or gears are not working ?

is it a linkage issue? if the shift lever is working and you can feel the detents, check your fluid make sure it is full and clean, if not you could have internal issues with the trans

There is a factory service bulletin for the 2003-2010 Infiniti vehicles with 5-Speed A/T for the P1759 code. The bulletin recommends replacing the Transmission Valve Body to fix the problem.

Read more: http://engine-codes.com/p1759_infiniti.html#ixzz3ZIMl6GG9

Here's a link to your P1759 code. P1759 Dodge Front Brake Solenoid Valve Function

This is a failure detected in an automatic transaxle solenoid, one that is used to select the proper gear. The bad part is that as of my last knowledge, you cannot buy a solenoid separately, you have to replace the entire transaxle. Hyundai Motors does not inventory automatic transmission repair parts.

Hello, all your codes are related to transmission shift solenoid circuit condtion eg: Transmission > Automatic Transaxle > P0750 Low and Reverse Solenoid Valve Circuit - Open or Short(GND). Automatic Transaxle > P0755 Underdrive Solenoid Valve Circuit - Open or Short(GND). Automatic Transaxle > P0760 Second Solenoid Valve Circuit - Open or Short(GND). Automatic Transaxle > P0765 Overdrive Solenoid Valve Circuit - Open or Short(GND). Wether your vehicle is equipped with a 4 cylinder or v6 ,all the codes are for either engine models. Check your main wire harness that plugs into the top of the transmission and verify,that a good connection is present. if all looks ok and the vehicle still exibits the same symptoms. The problem may also be in the ECM/TCM control module itself. A Hyundai dealer would have the proper scan tool and tester to verify and perform actuation tests on the shift solendoids themselves to make sure they are working correctly. This does not mean that the transmission itself has failed. You basically have an open circuit somewhere that the solenoids are not getting a good ground. Hope this helps.

i have the same problem 2005 xterra 4x2 giving pretty much all the code you posted but i did and tried everything possible to fix it myself with a little success but still ( Engine Light ) comes on with the last code P1757 front breake soleniod i did change the front passenger sensor but now the light came on again i believe the driver side need to replace as well ..... but weird the whining noise from the engine still there sound like i am going 120mph but actually im going 30mph only initiall problem was fixed by replacing the Transmission Oil 5 qrt S type from nissan dealer it did help for at least few months but then the problem came back... i also replace the Transmission Revolution speed sensor by doing that id just eliminate the code to pop up... i love my xterra but im getting really fraustrated everytime i see her in my garage colleccting dust not running.. dont want to spent a fortune rather thingking about trading it anyway like id said you might thingking replacing the Transmission oil that would maybe solve the issue.... GOOD LUCK....

===shift interlock solenoid--Inside the steering column near the ignition switch

===1-2 shift solenoid valve--Inside the automatic transaxle
to remove it :

1. Remove the case side cover. Refer to Case Side Cover Replacement.
2. Disconnect the transaxle wiring harness.
3. Remove the 1-2 shift solenoid (315A).

2-3 shift solenoid valve--Inside the automatic transaxle
to remove it;

1. Remove the case side cover. Refer to Case Side Cover Replacement.
2. Disconnect the transaxle wiring harness.
3. Remove the 2-3 shift solenoid (315B).

==the torque converter solenoid--inside tranny too

good luck,let me know