DTC P0404:00 [MZ-CD 1.6]

id0102g8155300

DTC P0404:00

EGR valve control circuit range/performance malfunction

DETECTION CONDITION

•  The PCM monitors the EGR valve. If the following electrical error occurs, the PCM determines that there is a malfunction in the EGR valve.

―  Under voltage

―  Over current

―  Over temperature

POSSIBLE CAUSE

•  EGR valve malfunction

•  PCM malfunction

DTC P0404:00	EGR valve control circuit range/performance malfunction
DETECTION CONDITION	• The PCM monitors the EGR valve. If the following electrical error occurs, the PCM determines that there is a malfunction in the EGR valve. ― Under voltage ― Over current ― Over temperature
POSSIBLE CAUSE	• EGR valve malfunction • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • 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.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE AND/OR DTC • Switch the ignition to ON (engine off). • Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [MZ-CD 1.6].) • Is the other PENDING CODE/DTC also present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZ-CD 1.6].)
3		No	Go to the next step.
4	INSPECT EGR VALVE • Inspect the EGR valve. (See EGR VALVE POSITION SENSOR INSPECTION [MZ-CD 1.6].) • Is there any malfunction?	Yes	Replace the EGR VALVE, then go to the next step. (See EGR VALVE REMOVAL/INSTALLATION [MZ-CD 1.6].)
4		No	Go to the next step.
5	VERIFY THAT DTC P0404:00 TROUBLESHOOTING IS COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the memory using the M-MDS. • Run the vehicle under the FREEZE FRAME DATA stored condition. • Is the same DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZ-CD 1.6].) Go to the next step.
5		No	Go to the next step.
6	VERIFY AFTER REPAIR PROCEDURE • Perform the after repair procedure. (See AFTER REPAIR PROCEDURE [MZ-CD 1.6].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZ-CD 1.6].)
6		No	DTC troubleshooting completed.