DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.CHECK DTC DETECTION

With CONSULT-III

1. Start the engine.

2. Select “Data Monitor” in “TRANSMISSION”.

3. Select “FLUID TEMP”.

4. Maintain the following conditions for 10 seconds or more.

FLUID TEMP : −19°C (−2.2°F) or more

5. Check the first trip DTC.

With GST.

1. Start the engine and wait for at least 10 seconds.

CAUTION:
When the ambient temperature is −20°C (−4°F) or less and the engine is cold, warm up the engine for approximately 5 minutes.

2. Check the first trip DTC.

Is “P0847”detected? YES >> Go to TM-426, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 1)

1. Turn ignition switch OFF.

2. Disconnect the TCM connector and the CVT unit connector.

3. Check the continuity between the TCM harness connector terminals and the CVT unit harness connector terminals.

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace the malfunctioning parts.

2.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 2)

Check the continuity between the TCM harness connector terminals and ground.

Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace the malfunctioning parts.

3.CHECK TCM INPUT SIGNALS

1. Connect all connectors removed.

2. Start the engine.

3. Check the voltage between TCM connector terminal and ground.

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".

NO >> There is malfunction of the secondary pressure sensor. Replace the transaxle assembly. Refer to TM-508, "Removal and Installation".