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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 next step.
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No
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Record FREEZE FRAME DATA on the repair order, then go to next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service 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 OR STORED DTC
• Verify the related PENDING CODE or stored DTCs.
• Are other DTCs present?
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Yes
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Go to appropriate DTC inspection.
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No
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Go to next step.
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4
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INSPECT AIR SUCTIONING BETWEEN MAF SENSOR AND TP SENSOR
• Inspect for major leaks, cracks and openings between MAF sensor and throttle body.
• Are there any malfunction?
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Yes
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Repair or replace the malfunctioning part, then go to Step 10.
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No
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Go to next step.
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5
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INSPECT MAF SENSOR CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Are there any malfunction?
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Yes
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Repair or replace the malfunctioning part, then go to Step 10.
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No
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Go to next step.
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6
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INSPECT MAF SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure voltage between the following terminals:
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― MAF sensor terminal C (wiring harness-side) and body ground
― MAF sensor terminal D (wiring harness-side) and body ground
• Are there voltage B+?
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Yes
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Repair or replace the malfunctioning part, then go to Step 10.
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No
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Go to next step.
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7
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INSPECT MAF SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor and PCM connector.
• Inspect for continuity between the following circuits:
-
― MAF sensor terminal C (wiring harness-side) and body ground
― MAF sensor terminal D (wiring harness-side) and body ground
• Are there continuity?
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Yes
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Repair or replace the malfunctioning part, then go to Step 10.
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No
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Go to next step.
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8
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INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Are there any malfunction?
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Yes
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Repair or replace the malfunctioning part, then go to Step 10.
|
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No
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Go to next step.
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9
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INSPECT MAF SENSOR CIRCUIT FOR OPEN CIRCUIT
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Disconnect the MAF/IAT sensor connector.
• Inspect for continuity between the following terminals:
-
― MAF sensor terminal C and PCM terminal 1AJ
― MAF sensor terminal D and PCM terminal 1AN
• Are there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace suspected part, then go to the next step.
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10
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VERIFY TROUBLESHOOTING OF DTC P0104 HAS BEEN COMPLETED
• Verify that all disconnected connectors reconnected.
• Clear DTC from memory using the M-MDS.
• Start the engine.
• Perform the “KOEO/KOER self-test”.
• Is same DTC present?
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Yes
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Replace the PCM, then go to next step.
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No
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Go to next step.
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11
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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.
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No
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Troubleshooting completed.
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