ON-BOARD DIAGNOSTIC
F2–73
F2
Diagnostic procedure
End Of Sie
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 and warm it up completely.
• Is the same DTC present?
Yes Go to the next step.
No Intermittent concern exists.
Perform the “INTERMITTENT CONCERNS
TROUBLESHOOTING”.
4 INSPECT ECT SENSOR CONNECTOR FOR
POOR CONNECTION
• Turn the engine switch off.
• Disconnect the ECT 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 8.
No Go to the next step.
5 INSPECT ECT SENSOR
• Inspect the ECT sensor.
• Is there any malfunction?
Yes Replace the ECT sensor, then go to Step 8.
No Go to the next step.
6 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 8.
No Go to the next step.
7 COMPARE ECT PID VALUE
• Prepare a new ECT sensor.
• Clear the DTC from the PCM memory using
the WDS or equivalent.
• Connect the ECT sensor connector to the new
ECT sensor without installing to the engine.
• Turn the engine switch to the ON position and
record the ECT PID value.
• Replace the malfunctioning ECT sensor with
new one.
• Start the engine and wait for 5 min.
• Record the ECT PID value.
• Is the difference between ECT PID values
more than 3°
°°
°C {5.4 °
°°
°F}?
Yes Go to the next step.
No Inspect the thermostat.
• If thermostat is normal, go to the next step.
• If thermostat is not normal, replace thermostat, then go
to the next step
8 VERIFY TROUBLESHOOTING OF DTC P0116
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the WDS or equivalent.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
Yes Replace the PCM, then go to the next step.
No Go to the next step.
9 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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