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Zibba
Ошибка P0700 и U0101 — кто сталкивался?
Доброго дня, ребята.
Произошло следующее. Во время движения на перекрестке загорелась гирлянда на щитке приборов. Встал! Вожу с собой сканер и он выдал ошибку P0700 (электронный блок управления АКПП, запрос индикатора неисправности) и сопутствующую ей ошибку U0101 (потеря связи с блоком управления АКПП).
Селектор переключался во все режимы, но в режиме Drive не происходит переключения на повышенную передачу. Добрался до дома типа на первой передаче. Спустя пару часов завел, прокатился, все в норме.
https://media.gm.com/content/Pages/news … 349701.jpgКоробка 6L80, блок управления АКПП внутри. Может ли связь с блоком потеряться где-то до коробки (вдруг проблема в проводке). Или же шанс на это призрачен и надо лезть снимать-вскрывать АКПП? Никто не сталкивался?
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rewers22
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Сообщение
rewers22 »
Надо теперь взять более серьезный сканер и почитать им ошибки. Просто P0700 — это общая ошибка по АКПП, она не дает представления, что там внутри случилось. Ошибка U0101 всего лишь говорит, что связь с TCM нарушена.
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technick
Re: Ошибка P0700 и U0101 — кто сталкивался?
Сообщение
technick »
Zibba писал(а):Доброго дня, ребята.
Произошло следующее. Во время движения на перекрестке загорелась гирлянда на щитке приборов. Встал! Вожу с собой сканер и он выдал ошибку P0700 (электронный блок управления АКПП, запрос индикатора неисправности) и сопутствующую ей ошибку U0101 (потеря связи с блоком управления АКПП).
Селектор переключался во все режимы, но в режиме Drive не происходит переключения на повышенную передачу. Добрался до дома типа на первой передаче. Спустя пару часов завел, прокатился, все в норме.
https://media.gm.com/content/Pages/news … 349701.jpgКоробка 6L80, блок управления АКПП внутри. Может ли связь с блоком потеряться где-то до коробки (вдруг проблема в проводке). Или же шанс на это призрачен и надо лезть снимать-вскрывать АКПП? Никто не сталкивался?
Код Р0700 означает, что блок управления двигателем получил сообщение от АКПП о каких-то проблемах…
U0101 говорит о потере связи с блоком АКПП, что подтверждается пропаданием индикации селектора. Проблема скорей всего проводочная — процентов на 90%…
Метод поиска один — это визуальный осмотр и промер как-шины. Таких машин переделал кучу, так что не торопитесь лезть в блок, вряд ли дело в нем.
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Zibba
Сообщение
Zibba »
Огромное спасибо, Андрей!
Буду пытаться искать. О результатах отпишусь!
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cold7777
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- Автомобиль: Cadillac Escalade ESV 2007
Сообщение
cold7777 »
Тоже ерунда! P2715 и P0700 — какие мысли?
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technick
Re:
Сообщение
technick »
cold7777 писал(а):(…) какие мысли?
О бабах… 
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cold7777
- Интересующийся
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Сообщение
cold7777 »
К бабам доехать нужно! А тут ошибки…
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rewers22
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Сообщение
rewers22 »
Ну 2715 — это жалобы на работу соленоида 4 …точнее не так, соленоид 4 подает и перекрывает давление на муфту сцепления 2-6 (clutch 2-6). Это контролируется с помощью калькулирования передаточного числа на выходе АКПП и сравнения его с действительным.
Если английский читаем, то вот: 2007 Cadillac Truck Escalade AWD V8-6.2L Copyright © 2008
Computers and Control Systems: Diagnostic Trouble Code Tests and Associated Procedures
P2715
DTC P2714 or P2715
Diagnostic Instructions
^ Perform the Diagnostic System Check — Vehicle prior to using this diagnostic procedure.
^ Review Strategy Based Diagnosis for an overview of the diagnostic approach.
^ Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P2714
Clutch Pressure Control (PC) Solenoid 4 — Stuck Off
DTC P2715
Clutch Pressure Control (PC) Solenoid 4 — Stuck On
Circuit/System Description
The clutch pressure control (PC) solenoid 4 is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The
clutch PC solenoid 4 flows fluid to the 2-6 clutch when commanded ON and exhausts fluid when commanded OFF. The clutch PC solenoid 4
regulates the transmission fluid pressure to the 2-6 clutch. The TCM calculates gear ratio based on data from the automatic transmission input
speed sensor (ISS) and the output speed sensor (OSS). The TCM compares the known transmission gear ratio to a calculated gear ratio for each
commanded gear.
Conditions for Running the DTC
^ No DTCs P0716 or P0717.
^ No DTCs P0722 or P0723.
^ No DTCs P1825 or P1915.
DTC P2714
^ The transmission input shaft speed is greater than 60 RPM.
^ 2-6 clutch is commanded ON.
DTC P2715
^ The transmission output shaft speed is greater than 200 RPM.
^ 2-6 clutch is commanded OFF.
Conditions for Setting the DTC
DTC P2714
The TCM detects an incorrect on-coming clutch gear ratio, or flare, when the 2-6 clutch is commanded ON for 0.5 seconds and the transmission
input shaft speed is greater than 75 RPM from the anticipated input shaft speed.
DTC P2715
The TCM detects an incorrect off-going clutch gear ratio, or tie-up, when the 2-6 clutch is commanded OFF for 0.5 seconds and the transmission
input shaft speed is greater than 40 RPM from the anticipated input shaft speed.
Action Taken When the DTC Sets
^ DTCs P2714 and P2715 are Type A DTCs.
^ The TCM commands maximum line pressure.
^ The TCM inhibits TCC.
^ The TCM freezes transmission adaptive functions.
Conditions for Clearing the DIC/DTC
DTCs P2714 and P2715 are Type A DTCs.
2007 Cadillac Truck Escalade AWD V8-6.2L Copyright © 2008, ALLDATA 9.90 Page 2
Diagnostic Aids
When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure
conditions.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
^ Automatic Transmission Inline 16-Way Connector End View
^ Automatic Transmission Internal Connector End Views
^ Automatic Transmission Related Connector End Views
DTC Type Reference
^ Diagnostic Trouble Code (DTC) Type Definitions
^ Diagnostic Trouble Code (DTC) List/Type
Electrical Information Reference
^ Circuit Testing
^ Connector Repairs
^ Testing for Intermittent Conditions and Poor Connections
^ Wiring Repairs
Scan Tool Reference
^ Scan Tool Output Controls
^ Scan Tool Data List
^ Scan Tool Data Definitions
Special Tools Required
^ DT-47825 Control Solenoid Test Plate
^ DT-47825-10 Jumper Harness
Circuit/System Verification
1. Perform the Transmission Fluid Checking. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Component Tests and General Diagnostics/6L50/6L80/6L90 — Automatic Transmission/Transmission Fluid Checking
2. Turn ON the ignition, with the engine OFF.
Important: Before clearing the DTC, use the scan tool in order to record the Freeze Frame and Failure Records.
3. Record the DTC Freeze Frame and Failure Records.
4. Clear the DTC.
5. Operate the vehicle in drive with the calculated throttle position greater than 15% to obtain 72 km/h (45 mph) and achieve 5th gear.
Perform this maneuver 2 times.
^ If the DTC resets, go to Circuit/System Testing.
Circuit/System Testing
1. Perform the Line Pressure Check. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/6L50/6L80/6L90 — Automatic Transmission/Line Pressure Check
^ If the pressure is out of specification, correct this concern first.
2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Cleaning and retest the DTC as outlined in the
Circuit/System Verification steps. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/6L50/6L80/6L90 — Automatic Transmission/Control Solenoid Valve and Transmission Control Module
Assembly Inspection
^ If the DTC resets, continue on with testing.
3. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection. See: Transmission and Drivetrain/Automatic
2007 Cadillac Truck Escalade AWD V8-6.2L Copyright © 2008, ALLDATA 9.90 Page 3
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L50/6L80/6L90 — Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection
^ If a concern is found, repair or replace the control solenoid (w/body and TCM) valve assembly.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test. See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L50/6L80/6L90 —
Automatic Transmission/Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test
^ If the solenoid is found to be leaking or stuck closed, replace the control solenoid (w/body and TCM) valve assembly.
5. Inspect the control valve lower body assembly for sticking valves, damage, scored bores, or debris.
^ If a concern if found in the valve body, repair or replace the valve body as necessary.
6. Inspect the 2-6 clutch assembly for damage.
^ If a concern is found in the 2-6 clutch assembly, repair or replace as necessary.
Component Testing
Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection. See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L50/6L80/6L90 — Automatic Transmission/Control
Solenoid Valve and Transmission Control Module Assembly Inspection
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
^ Control valve body replacement. Refer to Control Valve Lower Body and Upper Body Replacement.
^ 2-6 clutch assembly repair or replace. Refer to 2-6 Clutch Overhaul (6L80).
^ Control solenoid (w/body and TCM) valve assembly replacement. Refer to Control Module References for replacement, setup, and
programming.
^ Perform the Service Fast Learn Adapts. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Component Tests and General Diagnostics/6L50/6L80/6L90 — Automatic Transmission/Service Fast Learn Adapts
Ремонтирую GM очень много лет! http://kkk-service.ru/kontakti.php
Решаем любые проблемы по электрике и электронике (тюнинг электроники).
+7 (903) 753-57-19 Сергей
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technick
Re:
Сообщение
technick »
cold7777 писал(а):К бабам доехать нужно! а тут ошибки…
Сам код говорит о зависании соленоида 4 в открытом положении, что вызывает сбои в работе трансмиссии. Не факт, что дело в нем, просто в коробке происходит процесс, который имеет природу похожую на то, как если бы он и правда зависал в открытом положении… что приводит к отсутствию давления трансмиссионной жидкости там, где оно должно быть, либо присутствию там, где его быть не должно.
Описание самого кода неисправности указывает на проблемы гидравлики, либо механики:
Clutch Pressure Control (PC) Solenoid 4 – Stuck On – Transmission Hydraulic/Mechanical Performance —
первым делом проверяется состояние и уровень масла, такую проблему может вызвать даже забитый фильтр АКПП, поэтому начинайте отсюда.
Последний раз редактировалось technick 12 фев 2016 19:00, всего редактировалось 3 раза.
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cold7777
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Сообщение
cold7777 »
Спасибо огромное за инфу! Масло и фильтр поменял — ничего не помогло. Что посоветуете делать дальше?
Использование и перепечатка печатных материалов сайта escaladeclub.su возможно только с активной ссылкой на ресурс.
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на сайте escaladeclub.su разрешено только лицам, имеющим все необходимые права для такого размещения.
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A trouble code is a signal that is generated by an automatic transmission system whenever it detects an issue in the Cadillac Escalade that requires your attention.
The P0700 code is a general code that is typically accompanied by another code that specifies the specific problem. This code is part of the OBDII system and is not specific to Cadillac vehicles.
In some cases, you may receive the P0700 code without any other codes being registered by your Cadillac Escalade. This usually indicates that there is a malfunction in the transmission control circuit.
Identifying the root cause of the P0700 code when it registers by itself can be challenging. That being said, P0700 is usually accompanied by other codes that provide more information about the issue. Below, we have listed some of the common causes of the P0700 code in the Cadillac Escalade.
Cadillac Escalade P0700 Definition
The P0700 code in your Cadillac Escalade is a generic OBD-II code that indicates a malfunction within the transmission control system. This code is not specific to any particular issue but rather points to a general fault in the system.
Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift solenoid codes. Some common symptoms of a P0700 code include difficulty shifting, limp mode activation, and the engine dying or running poorly.
To diagnose and resolve the P0700 code, you may need the assistance of a professional mechanic. They will likely use an OBD-II scanner, a multimeter, and their expertise to identify the root cause of the issue and recommend the appropriate repairs. By acting promptly, you can ensure your Cadillac Escalade continues to run efficiently and safely on the road.
When experiencing a P0700 code in your Cadillac Escalade, it is crucial to address the issue promptly. Ignoring the problem can lead to severe damage to the transmission, affecting the overall performance and reliability of your vehicle.
Here are a few symptoms you may observe when faced with a P0700 code:
- Difficulty in shifting: Your Escalade may have trouble shifting gears, causing delays and a lack of smoothness during gear transitions.
- Limp mode activation: To protect itself from further damage, your transmission may activate the limp mode—a feature that limits the vehicle’s speed and power output.
- Warning lights: The service engine soon light or transmission light on your dashboard may illuminate, indicating a transmission issue.
- Limited gear availability: You might not be able to access all available gears, limiting your vehicle’s performance on the road.
- Engine performance issues: Your engine could experience stalling, running poorly, or even dying as a result of the P0700 code.
Causes of P0700 Code in Cadillac Escalade
Upon detecting a P0700 code, it’s essential to address the issue as soon as possible to prevent any potential damage to your Escalade’s transmission. Some possible causes for this code are:
- Faulty shift solenoid
- Low transmission fluid levels
- Short circuit within the transmission system
- A malfunctioning transmission control module (TCM)
We’ll dive into each root cause in greater depth below:
Shift Solenoid(s)
First and foremost, faulty shift solenoids can be responsible for the P0700 code in the Cadillac Escalade.
Shift solenoids control the flow of fluid in your transmission and help facilitate smooth gear shifts. If they are damaged or not functioning correctly, it can lead to transmission issues.
Transmission Fluid
Another common cause is low or dirty transmission fluid. Your vehicle’s transmission requires clean, full fluid to run efficiently.
If there’s not enough fluid or if it’s dirty, this can result in overheating and increased friction between moving components, leading to transmission problems.
Wiring Issue
Short circuits or faulty wiring can also trigger the P0700 code in the Cadillac Escalade. The transmission control module (TCM) relies on various electrical connections to function at its best.
If any wires are damaged or there’s a short circuit, the TCM may not perform optimally, and it may result in a transmission system malfunction.
Valve Body
Lastly, a bad valve body within the transmission can lead to the P0700 code. The valve body is responsible for controlling the transmission’s hydraulic pressure, which ultimately affects gear shifting. If the valve body is damaged or not functioning correctly, it could cause transmission issues.
To recap, the main causes of the P0700 code in your Cadillac Escalade are:
- Faulty shift solenoids
- Low or dirty transmission fluid
- Short circuits or faulty wiring
- Bad valve body
Please remember that it’s essential to address this issue as soon as possible to avoid further transmission problems and potential damage to your vehicle.
Troubleshooting P0700 Code in Cadillac Escalade
Initial Inspection
Before you jump into professional diagnostic tests, it’s essential to perform a basic inspection of your Escalade’s transmission control system. This can help identify common issues related to the P0700 code. Here’s what you should do:
- Check for additional codes: Use an OBD-II scanner to read any other stored fault codes in the system. The P0700 code is informational, meaning it points to a general problem and not a specific fault.
- Inspect wiring and connections: Visually inspect the transmission control module (TCM) and associated wiring for any signs of damage or corrosion. If necessary, repair or replace damaged components.
- Look for fluid leaks: Check the transmission fluid level and make sure it’s within the recommended range. If there are any signs of leakage, repair the leak and top off the fluid as necessary.
Professional Diagnostic Tests
If the initial inspection doesn’t reveal any obvious issues, you should visit a professional mechanic for further diagnostic tests. Some of the diagnostic procedures they may perform include:
- TCM scanning: The mechanic will use specialized equipment to scan the transmission control module for any potential faults or issues.
- Solenoid and valve body testing: The mechanic may perform tests on the solenoids and valve body to determine if they’re functioning correctly.
- Transmission pressure tests: These tests will help determine if there are any issues with the hydraulic system of the transmission.
Remember, a P0700 code indicates a general transmission control system malfunction. Therefore, it’s essential to accurately diagnose and address the root cause of the issue to prevent further damage to your Cadillac Escalade’s transmission.
Frequently Asked Questions
How to fix P0700 code in Cadillac Escalade?
To fix the P0700 code in your Cadillac Escalade, you should first diagnose the exact problem by checking the TCM (Transmission Control Module), wiring, transmission fluid levels, and solenoids. Once you have determined the specific issue, you can then proceed to repair or replace the faulty components. It is recommended to consult a professional mechanic for accurate diagnosis and proper repairs.
Is it safe to drive with a P0700 code?
It is not recommended to drive your Cadillac Escalade with a P0700 code, as the problem may cause serious drivability issues and potential damage to the transmission or engine. If you experience any symptoms of a P0700 code, it’s best to address the issue immediately to avoid further complications.
What can cause a P0700 code in a Cadillac Escalade?
Causes for a P0700 code in a Cadillac Escalade may include:
- A faulty Transmission Control Module (TCM)
- Shorts in the wiring
- Transmission issues
- Defective shift solenoids
- Defective engine coolant sensor
- Dirty transmission fluid or low levels
What does P0700 code mean for a Cadillac Escalade?
The P0700 code in a Cadillac Escalade indicates a fault within the transmission control system. The vehicle’s internal computer detects this issue and communicates it through warning errors. However, P0700 is a generic code and does not specify the exact issue with the transmission.
Does P0700 code affect Cadillac Escalade transmission?
Yes, a P0700 code directly affects the Cadillac Escalade transmission. It indicates a fault within the transmission control system and may cause issues such as difficult shifting, failing to shift into specific gears, or entering limp mode.
What are the symptoms of a P0700 code in a Cadillac Escalade?
Symptoms of a P0700 code in a Cadillac Escalade may include:
- Difficulty shifting gears
- Limp mode activation
- Service engine soon light or transmission light
- Not getting all available gears
- Engine dying or running poorly
Skip to content
P0700 Cadillac Transmission Control System Malfunction
Possible causes
– Shorted or open circuit within Transmission Control Module (TCM)
– Faulty Transmission Control Module (TCM)
Tech description
Since the P0700 Cadillac is just and informative code, check the TCM for more codes to resolve the problem.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Driveability problems
– Transmission shifting problems
P0700 Cadillac 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 Cadillac code and it means the TCM detected a malfunction with the transmission controls.
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