Description
OBD-II Trouble Code Description for P1604 Subaru
The OBD2 Code Information Be Applicable For Subaru:
2013 Subaru WRX Concept,2013 Subaru Viziv Concept,2013 Subaru Outback,2013 Subaru Legacy,2013 Subaru Impreza,2013 Subaru BRZ,2012 Subaru XV,2012 Subaru Impreza,2011 Subaru XV Concept,2011 Subaru Outback,2011 Subaru Impreza,2011 Subaru Forester,2010 Subaru Legacy,2010 Subaru Impreza,2009 Subaru Impreza,2008 Subaru Impreza,2008 Subaru Forester,2006 Subaru Impreza,2005 Subaru R1,2005 Subaru Pleo,2004 Subaru Impreza,2004 Subaru Forester,2003 Subaru Traviq
Note:
1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Subaru makes.
2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes in the search box and submit the search.
3. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use.
4. If your OBD-II trouble codes are for a different car, select that vehicle series before searching for the diagnostic codes because not all OBD2 codes used by one manufacture are used by the other makes.
5. The information contained on this site is presented for informational purposes only. We are not responsible for any actions you take on your vehicle. If you have any doubt as to repairs on your vehicle, please contact your technician.
NHTSA ID Number: 10231308
Manufacturer Communication Number: 09-95-22R
Summary
This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM) developed to remedy stored DTCs.
NUMBER: 09-95-22R
DATE: 01/23/23
REVISED: 01/30/23
| APPLICABILITY: | 2022MY WRX |
| SUBJECT: | Extended Engine Cranking During Starting DTCs: P1604, P0016, P0017, P0018, P0019, & P0128, P050B, P0088 |
INTRODUCTION:
This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs::
- P1604: Startability Malfunction
- P0016: Crankshaft Position – Camshaft Position Correlation Bank 1 Sensor A
- P0017: Crankshaft Position – Camshaft Position Correlation Bank 1 Sensor B
- P0018: Crankshaft Position – Camshaft Position Correlation Bank 2 Sensor A
- P0019: Crankshaft Position – Camshaft Position Correlation Bank 2 Sensor B
- P0128: Coolant Thermostat (Engine Coolant Temperature Below Thermostat Regulating Temperature)
- P0088: Fuel Rail/System Pressure – Too High Bank 1
- P050B: Cold Start Ignition Timing Performance
These files contain enhanced logic for the self-diagnosis program of the ECM. If any of the DTCs listed above are found to be stored in the ECM, follow the procedures outlined below.
PRODUCTION CHANGE INFORMATION:
The production change information is currently TBD.
PACK FILE APPLICABILITY:
| MY | Model | Trans | File Description | Decryption Keyword | New CID # |
| 22 | WRX | CVT | 22765AR885.pk2 | 1D2C307A | LHBHB10C00G |
| MT | 22765AR895.pk2 | 944297E3 | LHBHB10B00G |
These new files are included in the July 2022 SSM software update.
SERVICE PROCEDURE / INFORMATION:
(*1) Instructions on how to perform and read the OBD MODE test results. This procedure will be required when performing the diagnostic Steps outlined below.
Read the following data monitor values:
1. MID – $35 TID – $8B
2. MID – $35 TID – $8C
3. MID – $35 TID – $8D
4. MID – $35 TID – $8E
5. MID – $36 TID – $8B
6. MID – $36 TID – $8C
7. MID – $36 TID – $8D
8. MID – $36 TID – $8E
STEP 1: Are DTCs P0016, P0017, P0018, or P0019 displayed within the ECM fault memory?
NO – Perform the reprograming procedure outlined in STEP 2 ONLY. The service procedure is finished, no further action is required.
YES – Proceed to STEP 2 and continue to the proceeding steps.
STEP 2: Reprogram the ECM following the normal FlashWrite procedure.
Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-1100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming.
NOTES:
- For instructions on using the Power Supply Mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR81100 Diagnostic Battery Charger on STIS.
- Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode.
- Select the correct battery type (Enhanced Flooded, Flooded, Gel, AGM or AGM Spiral).
- Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings. Always confirm the battery’s CCA rating before proceeding.
- If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 Volts.
- DO NOT connect the DST-i or DST-010 until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display.
- Once Power Supply Mode reaches a steady 13.5 Volts, connect the DST-i or DST-010 to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process.
- Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14 Volts while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made.
- ALWAYS set the power supply voltage to 13.5 Volts when using Power Supply Mode. NEVER turn the ignition switch on when charging at voltages 15 Volts or higher.
REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge the battery fully before proceeding to reprogram the vehicle while using the Power Supply Mode.
NOTE: Control module failures resulting from battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual.
VERY IMPORTANT:
This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic ChargingSystem and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA.
End of procedure for vehicles WITHOUT DTCs P0016, P0017, P0018, or P0019 store in the ECM.
STEP 3: Using SSM, read the value the following four data monitor items (ALWAYS Save SSM Data):
1. VVT Initial Position Learning Value #1
2. VVT Initial Position Learning Value #2
3. VVT EX Initial Position Learning Value #1
4. VVT EX Initial Position Learning Value #2
Are all of the data monitor item values within the acceptable range listed in the table above?
YES – proceed to STEP 5.
NO – proceed to STEP 4.
STEP 4: Perform the procedures outlined in “#7 INSPECTION MODE N” and “#12
INSPECTION MODE T”. Then re-check the threshold values in STEP 3 along with the OBD MODE test results (*1)
“#7 INSPECTION MODE N” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #7 INSPECTION MODE N
A. Confirm the battery voltage is 12 Volts or more and the fuel tank is at least half full.
B. Using SSM, clear the fault memory. Prepare the SSM to be kept in the vehicle during the following road test.
C. With gear selector in the park position (neutral for MT models), idle the engine at approximately 2500 rpm for 40 seconds or more.
D. Move the gear selector into the drive position (appropriate gear range for MT models. Accelerate the vehicle to 31 mph or more.
E. When the vehicle speed is 31 mph or more, release the accelerator pedal and brake pedal (and clutch for MT models) and allow the vehicle to decelerate with any gear shift changes. Maintain the engine speed between 2500 rpm to 1900 rpm for 5 seconds during this deceleration.
NOTE: Depending on road conditions, an appropriate gear might have to be selected to maintain the desired engine speed. The vehicle speed is not important as long as the engine speed is within range during the declaration.
F. In a suitable area, safely bring the vehicle full stop and allow it to idle for 5 minutes.
“#7 INSPECTION MODE N” procedure is complete. Proceed to “#12 INSPECTION MODE T” procedure.
“#12 INSPECTION MODE T” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #12 INSPECTION MODE T
A. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
B. Start the engine.
C. Allow the engine to idle for at least 3 minutes.
D. Accelerate the vehicle speed to approximately 37 mph.
E. While maintaining approximately 37 mph, cycle the accelerator from a 0% to 20% opening angle. Try to keep these cycles within 5 second intervals. Maintain this driving pattern for 20 minutes or more.
NOTE: It is acceptable to stop the vehicle if needed depending on road/traffic conditions during this driving pattern.
F. Release the accelerator pedal and brake pedal (and clutch for MT models) and allow the vehicle to decelerate with any gear shift changes.
G. In a suitable area, safely bring the vehicle full stop and turn off the engine.
“#12 INSPECTION MODE T” procedure is complete.
Read the threshold values from STEP 3 (pictured below) and the OBD MODE test results (*1)
Are all of the data monitor item values within the acceptable range listed in the table below?
Are the threshold values between -1500 to + 1500?
YES – The procedure is FINISHED.
NO – Repeat STEP 4 ONE TIME ONLY and if the result answer is still “NO”, proceed to STEP 6.
STEP 5: Perform the “#7 INSPECTION MODE N” and “#12 INSPECTION MODE T” procedure.
“#7 INSPECTION MODE N” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #7
INSPECTION MODE N
A. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
B. Using SSM, clear the fault memory. Prepare the SSM to be kept in the vehicle during the following road test.
C. With gear selector in the park position (neutral for MT models), idle the engine at approximately 2500 rpm for 40 seconds or more.
D. Move the gear selector into the drive position (appropriate gear range for MT models. Accelerate the vehicle to 31 mph or more.
E. When the vehicle speed is 31 mph or more, release the accelerator pedal and brake pedal (and clutch for MT models) and allow the vehicle to decelerate without any gear shift changes. Maintain the engine speed between 2500 rpm to 1900 rpm for 5 seconds during this deceleration.
NOTE: Depending on road conditions, an appropriate gear might have to be selected to maintain the desired engine speed. The vehicle speed is not important as long as the engine speed is within range during the declaration.
F. In a suitable area, safely bring the vehicle full stop and allow it to idle for 5 minutes.
“#7 INSPECTION MODE N” procedure is complete. Proceed to “#12 INSPECTION MODE T” procedure.
“#12 INSPECTION MODE T” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #12 INSPECTION MODE T
H. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
I. Start the engine.
J. Allow the engine to idle for at least 3 minutes.
K. Accelerate the vehicle speed to approximately 37 mph.
L. While maintaining approximately 37 mph, cycle the accelerator from a 0% to 20% opening angle. Try to keep these cycles within 5 second intervals. Maintain this driving pattern for 20 minutes or more.
NOTE: It is acceptable to stop the vehicle if needed depending on road/traffic conditions during this driving pattern.
M. Release the accelerator pedal and brake pedal (and clutch for MT models) and allow the vehicle to decelerate with any gear shift changes.
N. In a suitable area, safely bring the vehicle full stop and turn off the engine.
“#12 INSPECTION MODE T” procedure is complete.
O. Using SSM, select Diagnosis > Each System > Engine > DTC > Readiness Code
P. Read the readiness codes for P0016, P0017, P0018, P0019, P000A, P000B, P000C, and P000D. Confirm the self-diagnosis is complete and that the codes are not pending.
Q. Check the DTC and data monitor threshold values. Using SSM, select Diagnosis > Select Vehicle > OBD System – Each System > ECM-EngineControl > OBD MODE test results (*1)
Are there NO DTCs present and the threshold values between -1500 to + 1500?
YES – The procedure is FINISHED.
NO – Proceed to STEP 6
STEP 6: Inspect the engine oil level and condition.
IMPORTANT: If the engine oil and filter were replaced prior to diagnosis, there is no need for inspection. Proceed to STEP: 7.
Is there any abnormal condition or Inappropriate oil level??
YES – Perform the engine oil and filter change. Repeat STEP 4 and STEP 5, then continue diagnosis.
NO – Proceed to STEP 7
STEP 7: Performed the outlined timing chain inspection outlined below:
IMPORTANT: If the timing chain was replaced prior to diagnosis, there is no need to perform the inspection. Proceed to STEP 8.
A. Using SSM, clear the fault memory.
B. Switch the ignition to the “OFF” position.
C. Disconnect the oil control solenoid valve connector on the bank with associated DTC.
D. Switch the ignition switch to the “ON” position.
E. Using SSM and the engine not running, read the “VVT Advance Angle Value” data monitor value.
F. Start the engine and read the “VVT Advance Angle Value” data monitor value for a duration of 10 seconds.
G. Switch the ignition to the “OFF” position.
Is the “VVT Advance Angle Value” data monitor value out of -10 degrees to +10 degrees?
YES – Adjust and / repair the timing chain as needed. Repeat STEP 4 and STEP 5, then continue diagnosis.
NO – Proceed to STEP 8.
STEP 8: Perform a visual inspection of the engine harness and the connectors specified below for any physical damage.
IMPORTANT: If the engine harness was replaced prior to diagnosis, there is no need to perform the inspection. Proceed to STEP 9.
Connectors:
- ECM
- Oil Control Solenoid
- CAM Position Sensor
- Crank Position Sensor
Was there any damage found?
YES – Repair the damaged harness and / or connector. Repeat STEP 4 and STEP 5, then continue diagnosis.
NO – Proceed to STEP 9.
STEP 9: Perform the following Ohm tests:
A. Switch the ignition to the “OFF” position.
B. Disconnect the ECM and the Crank Position Sensor. Disconnect the Oil Control Valve and Cam Position Sensor associated with the DTC.
C. Measure the resistance between the following and record the results:
Connector E158 Pin 99 & Connector E38 Pin 2
Connector E158 Pin 99 & Connector E36 Pin 2
Connector E158 Pin 99 & Connector E10 Pin 1
Are there resistance values 1 Ohm or higher?
YES – Replace the damaged harness. Repeat STEP 4 and STEP 5, then continue diagnosis.
NO – Proceed to STEP 10.
STEP 10: Perform and engine oil pressure test as per the applicable Service Manual: Engine > Mechanical > Engine Oil Pressure > INSPECTION
Was the engine oil pressure found to be within specification?
YES – Repeat STEP 4 or STEP 5, then continue diagnosis.
NO – Proceed to inspect the items listed below in the following order. Clean or replace the needed parts depending on the inspection results. Repeat STEP 4 and STEP 5, then continue diagnosis.
- Engine Oil Strainer
- Oil Passages in the Chain Cover
- Oil Passages in the Cam Sprocket
- Cam Carriers (possible scoring)
1 Affected Product
Vehicle
1 Associated Document
Manufacturer Communications
NUMBER: 09-95-22R
DATE: 01/23/23
REVISED: 01/30/23
https://www.nhtsa.gov/recalls?nhtsaId=10231308
MC-10231308-0001.pdf 2013.067KB
MC-10231308-0001
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MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Code Reader Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow
- Multi-Functions — Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.
- Wide Capability — Supports 9 protocols compatible with most 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports 6 languages — English,German, Dutch, Spanish, French, Italian.
- LCD Display — Designed with a clear display LCD screen (128 x 64 pixels) — white backlight and contrast adjustment. No need any battery or charger, OBD reader gets the power directly from your vehicle through the OBDII Data Link Connector.
- Compact Design — Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner:scroll up/down,enter/exit and buttons that quick query VIN vehicle number& the DTC fault code.
- ABS / Airbag codes NOT Supported — It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.
Last update on 2023-09-03 / Affiliate links / Images from Amazon Product Advertising API
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Найдена следующая информация по ошибке P1604 для автомобиля SUBARU LEGACY (2003-2009), B13:
На русском языке:
Потеря последовательных данных IPC
На английском языке:
Loss Of IPC Serial Data Conditions
Вы можете задать вопрос или поделиться опытом устранения ошибки P1604 на автомобиле SUBARU с другими пользователями.
Возможную причину возникновения и советы по устранению можно найти в каталоге причин и советов:
Найти причину >>>
Ошибки (коды ошибок) полученные от прибора, сканера требуют правильной интерпретации информации, дабы не тратить время и деньги на замену работающих элементов автомобиля.
Проблема зачастую кроется намного глубже чем кажется на первый взгляд. Это& вызвано теми обстоятельствами, что информационные сообщения содержат, как было выше сказано, косвенную информацию о нарушении работы системы.
Может быть полезным для решения вопроса по устранению неисправности у Subaru Legacy (B13):
Возможные причины: Неисправный приборный щиток (IPC); Панель приборов Жгут проводов кластера открыт или замкнут; Приборная панель Кластерная схема плохое электрическое соединение.
При частоте вращения двигателя более 500 об / мин в течение 10 секунд непрерывно модуль управления силовым агрегатом ( PCM ) обнаруживает недопустимый сигнал последовательных данных или отсутствие последовательных данных от комбинации приборов (IPC) к PCM в течение 11 секунд.
Техническое название ошибки:
P1604 Engine control module (ECM) — RAM read/writeerror ECM
Автомобиль RAM был диагностирован с кодом P1604, что указывает на неисправность в системе подачи топлива. Это требует немедленного внимания, чтобы предотвратить любое дальнейшее негативное влияние на работу автомобиля. Пренебрежение этой проблемой может привести к снижению эффективности использования топлива, уменьшению выходной мощности и дополнительному повреждению двигателя. Основной причиной появления кода P1604 является неисправность модуля управления в системе подачи топлива или неисправность проводки, а в некоторых случаях неисправность реле топливного насоса.
Типичные причины появления кода неисправности P1604:
- Неисправный модуль управления двигателем (ECM), вызывающий нарушение работы системы.
- Неисправность электрических соединений или проводки в цепи ECM.
- Отказ или склонность к отказу модуля управления силовым агрегатом (PCM).
- Проблемы с протоколом связи между ECM/PCM и другими компонентами автомобиля.
- Сбои программного обеспечения, влияющие на ECM/PCM из-за повреждения или ошибок.
Варианты лечения кода P1604 включают замену модуля подачи топлива или его модуля управления. В некоторых случаях может потребоваться ремонт проводки. Продолжительность ремонта зависит от первопричины неисправности, от нескольких часов до нескольких дней и стоит от нескольких десятков тысяч до нескольких сотен тысяч рублей. Игнорирование проблем с кодом P1604 может привести к серьезному ухудшению характеристик автомобиля, дополнительному повреждению двигателя и более значительным затратам на ремонт. Проблемы с кислородным датчиком или зажиганием также могут быть связаны с кодом P1604, что требует комплексной диагностики для адекватного решения основной проблемы.
Алексей Потапов
Механик-специалист по работе с электроникой. Стаж работы в автомастерских 12 лет. Отвечает на вопросы по коду P1604 RAM:
Что означает код ошибки P1604 на RAM машины?
Код P1604 в ОЗУ указывает на неисправность процессора ICM, поскольку он не может получать надлежащие сигналы от модулей управления и датчиков автомобиля.
Что нужно проверить при появлении кода P1604?
- Выполните сканирование OBD, чтобы получить код ошибки P1604 и записать дополнительные коды ошибок.
- Проверьте напряжение аккумуляторной батареи и системы зарядки, чтобы обеспечить стабильную работу.
- Проанализируйте проводку и разъемы на предмет износа.
- Проверьте TCM и PCM на наличие аномалий или дефектов.
- Оцените входные данные датчиков, включая датчик скорости, датчик положения дроссельной заслонки и датчик положения коленчатого вала, для получения точных показаний и эффективности.
- Осмотрите прокладки впускного коллектора на наличие повреждений или утечек вакуума, которые могут повлиять на работу двигателя.
- Проведите тест-драйв, чтобы обнаружить любые повторяющиеся коды ошибок и изменения в работе автомобиля.
- Если все попытки не увенчались успехом, подумайте о том, чтобы обратиться за помощью к авторизованному механику или в дилерский центр для дальнейшей диагностики и ремонта.
Насколько серьезна проблема, указанная этим кодом?
Пренебрежение кодом P1604 может привести к тяжелым последствиям, поэтому требует серьезного внимания.
Может ли этот код нанести автомобилю какой-либо непосредственный вред?
Игнорирование кода P1604 не является непосредственной угрозой, но может привести к косвенным проблемам, приводящим к повреждению или поломке.
Какова наиболее распространенная причина этого кода?
Код P1604 в основном вызван неисправностью ICM, а возможными факторами срабатывания являются неисправности проводки или датчика.
Как можно исправить проблему, подчеркнутую этим кодом?
Применение корректирующих мер для кода P1604 основано на основной причине, такой как выявление и замена неисправной проводки или датчиков или ремонт/замена ICM.
Требуется ли для устранения проблемы, связанной с этим кодом, заменить какие-либо детали в автомобиле?
Для устранения кода P1604 может потребоваться замена определенных элементов в зависимости от основной проблемы.
Сколько времени понадобится для устранения проблемы, указанной этим кодом?
Сроки решения зависят от сложности: некоторые исправления занимают всего несколько часов, тогда как диагностика и ремонт могут занять несколько дней.
Каковы будут примерные затраты на устранение проблемы, связанной с этим кодом?
Затраты, связанные с устранением проблем с кодом P1604, зависят от конкретного ремонта и основной причины. Консультация с уважаемым механиком или дилером лучше всего подходит для точной оценки.
Будет ли неисправный код ошибки P1604 приводить к каким-либо дополнительным проблемам с автомобилем?
Игнорирование ремонта может привести к разрушению компонентов автомобиля, что приведет к более сложному ремонту или, в конечном итоге, к поломке.
Может ли код P1604 быть связан с какими-либо другими проблемами в машине?
Неисправность датчиков или проводки в системах автомобиля может быть обозначена кодом P1604, а всесторонний осмотр опытным механиком может выявить другие проблемы, требующие внимания.
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