DTC P1676 [MZR-CD (RF Turbo)]
id0102f1839000
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DTC P1676 |
Checksum corrupt |
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DETECTION CONDITION
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• The fuel injector compensation data check sum error.
Diagnostic support note
• MIL illuminates if PCM detects the above malfunctioning condition in one drive cycle and the DTC has been stored in the PCM.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• Fuel injector compensation data does not input properly.
• 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 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 FUEL INJECTOR COMPENSATION DATA INPUTTED PROPERLY
• Perform the fuel injector compensation data input procedure.
• Does the inputted fuel injector compensation data properly?
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Yes
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Go to the next step.
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No
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Clear the learning data on PCM. Perform the fuel injector compensation data input procedure again.
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4
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VERIFY TROUBLESHOOTING OF DTC P1676 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn the engine switch to ON position (engine off).
• Clear the DTC from PCM memory using the M-MDS.
• Start the engine.
• Is the same 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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5
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VERIFY AFTER REPAIR PROCEDURE
• Perform “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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Troubleshooting completed.
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