DTC P1200:68 [MZ-CD 1.6]
id0102g8269200
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DTC P1200:68 |
Fuel injector range/performance |
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DETECTION CONDITION
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• The injection amount correction procedure does not complete.
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POSSIBLE CAUSE
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• Fuel injector correction factors improperly
• Loose connection temporary between DLC-2 and M-MDS while injection amount correction.
• Fuel injector malfunction
• Engine malfunction (insufficient compression)
• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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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 other PENDING CODE/DTC also present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
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No
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Go to the next step.
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4
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PERFORM FUEL INJECTOR CORRCTION FACTORS
• Cool down the engine.
• Clear the DTC from the PCM memory using the M-MDS.
• Perform the FUEL INJECTOR CORRCTION FACTORS.
• Perform the DIESEL PARTICULATE FILTER REGENERATION.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Go to Step 8.
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5
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INSPECT DLC-2 FOR POOR CONNECTION
• Switch the ignition to off.
• Inspect for poor connection between DLC-2 and M-MDS (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction detected?
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Yes
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Repair or replace the terminal, then go to Step 7.
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No
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Go to the next step.
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6
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INSPECT FUEL INJECTOR
• Inspect the fuel injectors for all cylinders.
• Is there any malfunction?
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Yes
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Replace suspect fuel injector, then go to Step 7.
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No
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Go to the next step.
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7
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VERIFY TROUBLESHOOTING OF DTC P1200:68 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Switch the ignition to ON (engine off).
• Clear the DTC from PCM memory using the M-MDS.
• Perform the injection amount correction procedure.
• Is the PENDING CODE for this DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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8
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VERIFY AFTER REPAIR PROCEDURE
• Perform the after repair procedure.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
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No
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DTC troubleshooting completed.
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