DTC P0405:00 [MZR-CD 2.2]

id0102f3155400

DTC P0405:00

EGR valve position sensor circuit low input
DETECTION CONDITION
•  The PCM monitors input voltage from EGR position sensor when the ignition switch is ON position. If input voltage is less than 0.2 V, the PCM determines that the EGR valve position sensor circuit has a malfunction.
Monitoring condition
•  Battery voltage: 8—20 V
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (mode2) and snapshot data are available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  EGR valve connector or terminal malfunction
•  Open circuit between EGR valve terminal A and PCM terminal 1CC.
•  Short to ground circuit between EGR valve terminal E and PCM terminal 1AH.
•  EGR valve position sensor malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
•  Is DTC P0405:00 on FREEZE FRAME DATA (mode2)?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC in FREEZE FRAME DATA (mode2).
(See DTC TABLE [MZR-CD 2.2].)
2
VERIFY FREEZE FRAME DATA (MODE2) OR SNAPSHOT DATA HAVE BEEN RECORDED
•  Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.
3
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
4
CLASSFY EGR VALVE POSITION SENSOR OR HARNESS MALFUNCTION
•  Connect the M-MDS to DLC-2.
•  Access EGRP PID V mode.
•  Disconnect the EGR valve connector.
•  Connect a jumper wire between EGR valve terminal E and A (wiring harness-side).
•  Switch the ignition to ON (engine off).
•  Is the EGRP PID more than 4.9 V?
Yes
Go to the next step.
No
Go to Step 7.
5
INSPECT POWER SUPPLY CIRCUIT VOLTAGE AT EGR VALVE CONNECTOR
•  Switch the ignition to ON (engine off).
•  Measure voltage at EGR valve terminal A (wiring harness-side).
•  Is the voltage within 4.5—5.5 V?
Yes
Go to the next step.
No
Repair or replace open circuit between EGR valve connector terminal A (wiring harness-side) and PCM connector terminal 1CC (wiring harness-side).
Then, go to Step 8.
6
VERIFY EGR VALVE POSITION SIGNAL CIRCUIT FOR SHORT TO GROUND
•  inspect for continuity between EGR valve terminal E (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Repair or replace for short to ground, then go to Step 8.
No
Go to the next step.
7
INSPECT EGR VALVE POSITION SENSOR
•  Perform EGR valve position sensor inspection.
•  Is the EGR valve position sensor normal?
Yes
Inspect for poor EGR valve connector terminal A connection.
Repair or replace if necessary, then go to the next step.
No
Replace the EGR valve, then go to the next step.
(See EGR VALVE REMOVAL/INSTALLATION [MZR-CD 2.2].)
8
VERIFY TROUBLESHOOTING OF DTC P0405:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Perform the KOEO or KOER self test.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
DTC troubleshooting completed.