DTC P024A [MZ-CD 1.6 (Y6) (EURO4 emission level)]

id0102g6830300

DTC P024A

Persistent air bypass valve governor deviation
DETECTION CONDITION
•  The PCM monitors the air bypass valve position using the air bypass valve position sensor. If the actual air bypass valve position deviation is below -30% or above 30% for 10 seconds. The PCM determines that the air bypass valve control has range/performance problem.
POSSIBLE CAUSE
•  Contaminate in air bypass valve
•  Air bypass valve position sensor malfunction
•  Air bypass valve malfunction
•  Vent or damaged in wiring between air bypass valve and PCM
•  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.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related service repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition to off, then to ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the following PENDING CODE/DTC also present?
―  P0033, P022A, P022B, P022C, P024E, P024F, P138C
Yes
Go to the applicable DTC inspection.
(See DTC P0033 [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P022A [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P022B [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P022C [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P024E [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P024F [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC P138C [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
No
Go to the next step.
4
VISUALLY INSPECT AIR BYPASS VALVE FOR CONTAMINATION
•  Remove the EGR throttle valve component.
•  Visually inspect air bypass valve.
•  Is there any contamination?
Yes
Clean the air bypass valve, then go to Step 6.
No
Go to the next step.
5
INSPECT AIR BYPASS VALVE POSITION SENSOR
•  Inspect the air bypass valve position sensor.
•  Is there any malfunction?
Yes
Replace the air bypass valve component, then go to the next step.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6)].)
No
Go to the next step.
6
VERIFY THAT DTC P024A TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM 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.
Go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the after repair procedure.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
No
DTC troubleshooting completed.