Diagnostic procedure
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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 the next step.
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No
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Record FREEZE FRAME DATA on repair order, then go to the 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 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 CURRENT INPUT SIGNAL STATUS- IS CONCERN INTERMITTENT OR CONSTANT
• Connect the WDS or equivalent to the DLC-2.
• Turn the ignition switch to the ON position (Engine off).
• Access IAT PID.
• Is IAT PID above 4.8 V?
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Yes
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Go to the next step.
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No
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Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure.
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4
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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).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 11.
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No
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Go to the next step.
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5
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INSPECT IAT SENSOR
• Inspect the IAT sensor.
• Is the IAT sensor normal?
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Yes
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Replace the MAF/IAT sensor, then go to Step 11.
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No
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Go to the next step.
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6
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INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between MAF/IAT sensor terminal F (wiring harness-side) and body ground.
• Is the voltage B+?
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Yes
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Repair or replace the wiring harness for short to power supply, then go to Step 11.
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No
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Go to the next step.
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7
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INSPECT IAT SENSOR GROUND CIRCUIT FOR SHORT TO POWER
• Measure the voltage between MAF/IAT sensor terminal A (wiring harness-side) and body ground.
• Is the voltage B+?
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Yes
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Repair or replace the wiring harness for short to power supply, then go to Step 11.
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No
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Go to the next step.
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8
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INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect PCM terminal 39 and 91 (wiring harness-side) for tightness using feeler tool.
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 11.
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No
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Go to the next step.
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9
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INSPECT IAT SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Disconnect PCM connector.
• Inspect for continuity between MAF/IAT sensor terminal F (wiring harness-side) and PCM terminal 39.
• 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 the wiring harness for open circuit, then go to Step 11.
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10
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INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between MAF/IAT sensor terminal A (wiring harness-side) and PCM terminal 91.
• 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 the wiring harness for open, then go to the next step.
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11
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VERIFY TROUBLESHOOTING OF DTC P0113 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Is the same 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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12
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VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See AFTER REPAIR PROCEDURE [AJ].)
• 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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