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STEP
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INSPECTION
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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 next step.
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No
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Record FREEZE FRAME DATA on repair order, then go to next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for 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 available Service Information.
• If vehicle is not repaired, go to next step.
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No
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Go to next step.
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3
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INSPECT FUEL INJECTOR NO.1 CONNECTOR FOR POOR CONNECTION
• Turn ignition key to OFF.
• Disconnect the fuel injector No.1 connector.
• Check for poor connection (damaged/pulled-out pins, corrosion, etc.).
• Is there malfunction?
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Yes
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Repair or replace terminal, then go to Step 9.
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No
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Go to next step.
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4
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INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn ignition key to OFF.
• Disconnect PCM connector.
• Check for poor connection (damaged/pulled-out pins, corrosion, etc.).
• Is there malfunction?
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Yes
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Repair or replace terminal, then go to Step 9.
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No
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Go to next step.
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5
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INSPECT FUEL INJECTOR NO.1 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure voltage between fuel injector No.1 connector terminal 2 and body GND.
• Is voltage B+?
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Yes
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Go to next step.
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No
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Repair or replace wiring harness for open, then go to Step 9.
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6
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INSPECT FUEL INJECTOR NO.1 CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn ignition key to ON (Engine OFF).
• Measure voltage between fuel injector No.1 terminal 1 (harness-side) and body GND.
• Is voltage B+?
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Yes
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Repair or replace the wiring harness for short to power, then go to Step 9.
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No
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Go to next step.
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7
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INSPECT FUEL INJECTOR NO.1 CONTROL CIRCUIT FOR SHORT TO GND
• Turn ignition key to ON (Engine OFF).
• Inspect for continuity between fuel injector No.1 terminal 1 (harness-side) and body GND.
• Is there continuity?
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Yes
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Repair or replace the wiring harness for a short to GND, then go to Step 9.
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No
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Go to next step.
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8
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INSPECT FUEL INJECTOR NO.1
• Inspect the fuel injector No.1.
• Is there any malfunction?
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Yes
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Replace the fuel injector No.1, then go to next step.
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No
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Go to next step.
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9
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VERIFY TROUBLESHOOTING OF DTC P0201 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory using WDS or equivalent.
• Start engine.
• Perform "KOEO/KOER self-test"
• Is same DTC present?
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Yes
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Replace PCM, then go to next step.
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No
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Go to next step.
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10
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VERIFY AFTER SERVICE PRECAUTION
• Perform "AFTER SERVICE PRECAUTION".
• Is there any DTC present?
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Yes
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Go to applicable DTC inspection.
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No
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Troubleshooting completed.
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