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 TP SENSOR CONNECTOR FOR POOR CONNECTION
• Turn ignition key to OFF.
• Disconnect the TP sensor connector.
• Check for poor connection (damaged, pulled-out terminals, corrosion, etc.).
• Is there any malfunction?
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Yes
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Repair or replace terminals, 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 terminals, corrosion, etc.).
• Is there any malfunction?
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Yes
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Repair 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 TP SIGNAL CIRCUIT FOR SHORT TO POWER CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure the voltage between TP sensor terminal 2 (harness-side) and body GND.
• Is there voltage 0 V?
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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 open circuit between TP sensor connector terminal 2 and PCM connector terminal 89 (harness-side).
Then, then go to Step 9.
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6
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INSPECT TP SIGNAL CIRCUIT FOR SHORT TO POWER CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure the voltage between TP sensor terminal 3 (harness-side) and body GND.
• Is there voltage 0 V?
|
Yes
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Go to next step.
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No
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Repair or replace open circuit between TP sensor connector terminal 3 and PCM connector terminal 90 (harness-side).
Then, then go to Step 9.
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7
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INSPECT TP GND CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between TP sensor terminal 1 (harness-side) and PCM terminal 91.
• Is there continuity?
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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 suspected harness, then go to Step 9.
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8
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INSPECT TP SENSOR
• Inspect the TP sensor.
• Is there any malfunction?
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Yes
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Replace the TP sensor, 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 P0123 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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