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 DTC P1588 [MZR-CD (RF Turbo)]

DTC P1588 [MZR-CD (RF Turbo)]

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DTC P1588

Intake shutter valve construction problem

DETECTION CONDITION

• The PCM monitors the return angle of the intake shutter valve when the engine switch is off. If the return angle of the intake shutter valve is less than 0.4 ° for the accelerator pedal position when the engine switch is off, the PCM determines that there is a malfunction in the throttle body construction.
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

• Intake shutter valve 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 REPAIR INFORMATION AVAILABILITY
• Check for related Service Bulletins and/or on-line 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
INSPECT FOR OTHER DTCS
• Have other DTCs been stored?
Yes
Perform the diagnostic procedure for the applicable DTCs.
No
Go to the next step.
4
INSPECT INTAKE SHUTTER VALVE
• Inspect the intake shutter valve.
• Is there any malfunction?
Yes
Replace the intake shutter valve, then go to the next step.
No
Go to the next step.
5
VERIFY TROUBLESHOOTING OF P1588 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Turn the engine switch off.
• Start the engine and let it idle.
• Is the same DTC present?
Yes
Replace the PCM, go to the next step.
No
Go to the next step.
6
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.