DTC P0404:00 [MZR-CD (RF Turbo)]

id0102f1155300

DTC P0404:00

EGR control circuit range/performance
DETECTION CONDITION
•  The PCM monitors EGR valve control signal current to calculate EGR valve (DC motor) temperature. If the calculate malfunction when the EGR valve (DC motor) temperature is more than 90 °C {194 °F}, the PCM determines that the EGR valve control circuit has a malfunction.
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA is available.
•  DTCs are stored in the PCM memory.
POSSIBLE CAUSE
•  EGR valve malfunction
•  Connector or terminal malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
•  If vehicle is not repaired, go to the next step.
No
Go to the next step.
3
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P0404:00 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC in FREEZE FRAME DATA.
(See DTC TABLE [MZR-CD (RF Turbo)].)
4
INSPECT EGR VALVE AND PCM CONNECTORS FOR POOR CONNECTION
•  Switch the ignition to off.
•  Disconnect the EGR valve connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace terminal, then go to Step 6.
No
Go to the next step.
5
INSPECT EGR VALVE
•  Inspect the EGR valve.
•  Is the EGR valve normal?
Yes
Go to the next step.
No
Replace the EGR valve, then go to the next step.
(See EGR VALVE REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
6
VERIFY TROUBLESHOOTING OF DTC P0404:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Switch the ignition to ON (engine off).
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Is any DTC present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD (RF Turbo)].)
No
Troubleshooting completed.