Здравствуйте,уважаемые форумчане.Вылезла ошибка Р1622.Перевели.Что- то с напряжением.Может из-за морозов все это?Кто сталкивался и чем черевато?

11 минут назад, Маруся40 сказал:

Здравствуйте,уважаемые форумчане.Вылезла ошибка Р1622.Перевели.Что- то с напряжением.Может из-за морозов все это?Кто сталкивался и чем черевато?

P1622-O2 SENSOR REFERENCE VOLTAGE CIRCUIT HIGH

тест бы выполнить.

а так...скорее всего датчик. 

но один раз была перетертая проводка в районе крепления  верхней защитной крышки.

5V Output Reference Voltage 2.Это тоже самое?

Как правильно датчик называется?

10 часов назад, Маруся40 сказал:

5V Output Reference Voltage 2.Это тоже самое?

Как правильно датчик называется?

да

O2 SENSOR

 

 

1. CHECK FOR AN ACTIVE DTC

 

 

 

NOTE:           Perform any Service Bulletins or flash updates that may apply before continuing with this test procedure.

1.        Start the engine and allow it to idle.

2.        With the scan tool, read DTCs and record on the repair order.

 

 

Is the DTC active or pending?

 

Yes

Go To 2

 

No

Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

2. CHECK THE O2 SENSOR VOLTAGE READINGS ON THE SCAN TOOL

 

1.        Turn the ignition on, engine not running.

2.        With the scan tool select the Data tab and monitor all of the O2 Sensor voltage readings.

 

 

NOTE:           Do not use the O2 volts (0-1) data.

3.        Start the engine and allow it to idle long enough for the O2 Sensors to enter closed loop operation (approximately two minutes).

 

NOTE:           The O2 Sensor voltages should be switching between approximately 2.5 - 3.5 volts with the engine idling. If an O2 Sensor or reference circuit is shorted to voltage, the voltage readings should be more than 3.9 volts.

 

 

Are all of the O2 Sensor voltage readings switching between approximately 2.5 - 3.5 volts?

 

Yes

Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

No

Go To 3

 

3. CHECK FOR A SHORTED O2 SENSOR

 

 

WARNING: 

When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.

 

1.        Disconnect any one of the O2 Sensor harness connectors.

2.        With the scan tool, monitor the voltage readings of the O2 Sensors that are STILL CONNECTED.

 

 

NOTE:           If the fault is caused by an O2 Sensor that is internally shorted, the other O2 Sensors should change to switching between 2.5 - 3.5 volts when the faulty O2 Sensor is disconnected.

3.        Reconnect the O2 Sensor harness connector and repeat this step for each of the O2 Sensors on the vehicle.

 

 

Did the voltages change to approximately 2.5 - 3.5 volts for the O2 Sensors STILL CONNECTED when disconnecting any one of the sensors?

 

Yes

Verify that there is good pin to terminal contact in the O2 Sensor connector. Replace the faulty O2 Sensor if no problems were found with the connections. (Refer to 14 - Fuel System/Fuel Injection/SENSOR, Oxygen - Removal) .

Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

No

Go To 4

 

4. CHECK THE (K902) O2 SENSOR UPSTREAM RETURN CIRCUIT FOR A SHORT TO VOLTAGE

 

1.        Turn the ignition off.

2.        Disconnect the O2 Sensor 1/1 harness connector.

3.        Disconnect the O2 Sensor 2/1 harness connector.

4.        Turn the ignition on.

5.        Measure the voltage on the (K902) O2 Sensor Upstream Return circuit at the O2 Sensor 1/1 or 2/1 harness connector.

 

 

Is the voltage above 2.75 volts?

 

Yes

Repair the (K902) O2 Sensor Upstream Return circuit for a short to voltage.

Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

No

Go To 5

 

5. CHECK THE (K904) O2 SENSOR DOWNSTREAM RETURN CIRCUIT FOR A SHORT TO VOLTAGE

 

1.        Turn the ignition off.

2.        Disconnect the O2 Sensor 1/2 harness connector.

3.        Disconnect the O2 Sensor 2/2 harness connector.

4.        Turn the ignition on.

5.        Measure the voltage on the (K904) O2 Sensor Downstream Return circuit at the O2 Sensor 1/2 or 2/2 harness connector.

 

 

Is the voltage above 2.75 volts?

 

Yes

Repair the (K904) O2 Sensor Downstream Return circuit for a short to voltage.

Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

No

Go To 6

 

6. CHECK RELATED PCM AND COMPONENT CONNECTIONS

 

1.        Perform any Service Bulletins that apply.

2.        Disconnect all PCM harness connectors.

3.        Disconnect all related in-line harness connections (if equipped).

4.        Disconnect the related component harness connectors.

5.        Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:

Proper connector installation.

Damaged connector locks.

Corrosion.

Other signs of water intrusion.

Weather seal damage (if equipped).

Bent terminals.

Overheating due to a poor connection (terminal may be discolored due to excessive current draw).

Terminals that have been pushed back into the connector cavity.

Check for spread terminals and verify proper terminal tension.

Repair any conditions that are found.

 

6.        Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.

7.        Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.

8.        Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.

9.        With the scan tool, erase DTCs.

10.      Test drive or operate the vehicle in accordance with the when monitored and set conditions.

11.      With the scan tool, read DTCs.

 

 

Did the DTC return?

 

Yes

Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. (Refer to 08 - Electrical/8E - Electronic Control Modules/MODULE, Powertrain Control/Removal) .

Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

 

No

The wiring or poor connection problem has been repaired.

Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

Изменено 1 марта 20188 г пользователем Basil

Спасибо,конечно.После перевода вообще все стало понятно)))А простота народе как он называется.Кислородный или абсолютного давления?

2 часа назад, Маруся40 сказал:

Спасибо,конечно.После перевода вообще все стало понятно)))А простота народе как он называется.Кислородный или абсолютного давления?

кислородный

там все просто. смотрим изменение напряжения. 

если есть диагностический прибор )))

Изменено 1 марта 20188 г пользователем Basil