ON-BOARD DIAGNOSTIC
F2–71
F2
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order,
then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related service repair information
availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 VERIFY CURRENT SIGNAL STATUS: IS
CONCERN INTERMITTENT OR CONSTANT?
• Connect the WDS or equivalent to the DLC-2.
• Clear the DTC from the PCM memory using
the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
Yes Go to the next step.
No Intermittent concern exists.
Perform the “INTERMITTENT CONCERNS
TROUBLESHOOTING”.
4 INSPECT MAF/IAT SENSOR CONNECTOR FOR
POOR CONNECTION
• Turn the engine switch off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
5 INSPECT IAT SENSOR NO.1 SIGNAL CIRCUIT
FOR SHORT TO POWER SUPPLY
• Turn the engine switch to the ON position
(Engine off).
• Measure the voltage between MAF/IAT sensor
terminal D (wiring harness-side) and body
GND.
• Is the voltage more than 4.92 V?
Yes Repair or replace the wiring harness for a possible short to
power supply, then go to Step 9.
No Go to the next step.
6 INSPECT IAT SENSOR NO.1
• Inspect the IAT sensor No.1.
• Is there any malfunction?
Yes Replace the MAF/IAT sensor, then go to Step 9.
No Go to the next step.
7 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn the engine switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
8 INSPECT IAT SENSOR NO.1 CIRCUIT FOR
OPEN CIRCUIT
• Turn the engine switch off.
• Inspect for continuity between the following
terminals:
— MAF/IAT sensor terminal D (wiring harness-
side) and PCM terminal 60 (wiring harness-
side)
— MAF/IAT sensor terminal E (wiring harness-
side) and PCM terminal 91 (wiring harness-
side)
• Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open
circuit, then go to the next step.
9 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?
Yes Replace the PCM, then go to the next step.
No Go to the next step.
10 VERIFY AFTER REPAIR PROCEDURE
• Perform the Repair Verification Drive Mode.
(See F2–39 OBD DRIVE MODE.)
• Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See F2–40 DTC TABLE.)
No DTC troubleshooting completed.
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