DTC Code | DTC Name |
---|---|
P0405 | Exhaust Gas Recirculation Sensor "A" Circuit Low |
P0406 | Exhaust Gas Recirculation Sensor "A" Circuit High |
DESCRIPTION
The EGR valve position sensor is mounted on the electric EGR control valve assembly and used for detecting the EGR valve angle. The EGR valve angle detected by the sensor is sent to the ECM as feedback. The ECM then regulates the EGR valve angle in accordance with engine running conditions.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P0405 | Exhaust Gas Recirculation Sensor "A" Circuit Low | EGR valve position sensor output voltage is less than 0.1 V for 5 seconds (1 trip detection logic). |
|
Comes on | DTC stored |
P0406 | Exhaust Gas Recirculation Sensor "A" Circuit High | EGR valve position sensor output voltage is higher than 4.9 V for 5 seconds (1 trip detection logic). |
|
Comes on | DTC stored |
MONITOR DESCRIPTION
When the output voltage of the EGR valve position sensor deviates from the normal operating range of 0.1 to 4.9 V for higher than 5 seconds, the ECM interprets this as a malfunction of the sensor circuit and illuminates the MIL.
CONFIRMATION DRIVING PATTERN
DTC No. | DTC Detection Drive Pattern |
---|---|
P0405 | Ignition switch ON for 5 seconds or more |
P0406 |
CAUTION / NOTICE / HINT
After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click hereНажмите здесь).
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
PROCEDURE
CHECK HARNESS AND CONNECTOR (EGR VALVE POSITION SENSOR - ECM)
Disconnect the electric EGR control valve assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK TERMINAL VOLTAGE (POWER SOURCE OF ELECTRIC EGR CONTROL VALVE ASSEMBLY)
Disconnect the electric EGR control valve assembly connector.
*a |
Front view of wire harness connector (to Electric EGR Control Valve Assembly) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY
Replace the electric EGR control valve assembly.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (P0405 OR P0406)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off and wait for 30 seconds or more.
Turn the ignition switch to ON for 5 seconds or more.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output.
Powertrain > Engine and ECT > Trouble CodesOK |
---|
DTC is not output. |
Result | |||
---|---|---|---|
|
OK |
END |
NG |
REPLACE ECM
Replace the ECM.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 7 |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Repair or replace the harness or connector.
Result | ||
---|---|---|
|
NEXT |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off and wait for 30 seconds or more.
Turn the ignition switch to ON for 5 seconds or more.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output.
Powertrain > Engine and ECT > Trouble CodesResult | ||
---|---|---|
|
NEXT |
END |