| Mazda P2584 | Fuel additive control module MIL request |
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DETECTION CONDITION
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• The PCM monitors that the fuel additive control system operation. If the fuel additive control module detects the fuel additive control system malfunction and requests to PCM that the MIL turn ON. The PCM determines that the fuel additive control module requests the MIL to ON.
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POSSIBLE CAUSE
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• Fuel additive system malfunction
• Fuel additive level sensor malfunction
• Fuel additive control module malfunction
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Diagnostic procedure
| 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 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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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is P2584 on FREEZE FRAME DATA?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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4
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INSPECT FUEL FILLER CAP SWITCH
• Inspect the fuel filler cap switch.
• Is the fuel filler cap switch normal?
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Yes
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Go to the next step.
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No
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Replace the fuel filler cap switch, then go to Step 6.
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5
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INSPECT FUEL ADDITIVE LEVEL SENSOR
• Inspect the fuel additive level sensor.
• Is the fuel additive level sensor normal?
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Yes
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Go to the next step.
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No
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Replace the fuel additive level sensor, then go to Step 7.
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6
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IDENTIFY MALFUNCTION AT FUEL ADDITIVE CONTROL MODULE OR NOT
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and warm-up to normal operating temperature.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Retrieve the DTC using the M-MDS.
• Is the PENDING CODE same DTC present?
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Yes
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Inspect and repair or replace the fuel additive pump, then go to the next step.
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No
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Replace fuel additive control module, then go to the next step.
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7
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VERIFY THAT DTC P2584 TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and warm-up to normal operating temperature.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Retrieve the DTC using the M-MDS.
• Is the PENDING CODE same DTC present?
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Yes
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Replace 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 “After Repair Procedure”.
• Is there any DTC 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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