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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 FREEZE FRAME DATA on the repair order, then go to the 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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INSPECT DRIVE BELT CONDITION
• Verify that drive belt auto tensioner indicator mark does not exceed limit.
• Is drive belt 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 and/or adjust drive belt, then go to Step 12.
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4
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INSPECT GENERATOR TERMINAL FOR POOR INSTALLATION
• Turn the engine switch off.
• Inspect generator terminal B for looseness.
• Are there any malfunction?
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Yes
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Connect generator terminal B correctly, then go to Step 12.
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No
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Go to the next step.
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5
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INSPECT GENERATOR CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure voltage between generator terminal LI (wiring harness-side) and body ground.
• Is voltage B+?
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Yes
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Repair or replace suspected part, then go to Step 12.
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No
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Go to the next step.
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6
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INSPECT GENERATOR CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between generator terminal LI (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Repair or replace suspected part, then go to the next step.
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No
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Go to the next step.
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7
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INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the engine switch off.
• Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
• Are there any malfunction?
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Yes
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Repair or replace suspected part, then go to Step 12.
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No
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Go to the next step.
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8
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INSPECT GENERATOR CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between generator terminal LI (wiring harness‐side) and PCM terminal 2AG (wiring harness‐side)
• Is 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 Step 12.
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9
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INSPECT BATTERY POSITIVE TERMINAL FOR POOR INSTALLATION
• Turn the engine switch off.
• Inspect the battery positive terminal for looseness.
• Is there any malfunction?
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Yes
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Connect the battery positive terminal correctly, then go to Step 12.
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No
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Go to the next step.
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10
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INSPECT GENERATOR CIRCUIT FOR OPEN CIRCUIT
• Inspect continuity between generator terminal B (wiring harness-side) and battery positive terminal (wiring harness-side).
• Is 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 Step 12.
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11
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INSPECT GENERATOR
• Is there any malfunction?
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Yes
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Replace the generator, then go to the next step.
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No
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Go to the next step.
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12
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VERIFY TROUBLESHOOTING OF DTC P0620 HAS BEEN COMPLETED
• Verify that all disconnected connectors reconnected.
• Clear the DTC from the PCM memory using the M-MDS.
• Perform the “KOEO or KOER self-test” using the M‐MDS.
• Is the PENDING CODE for the 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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13
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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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