P1709

P1709 INCOMPLETED DATA WRITING

Description

When TCM does not store calibration data (individual characteristic value) of each solenoid valve that is stored in the ROM assembly (in the control valve), a malfunction is detected.

CAUTION:
Immediately after TCM is replaced or after control valve or transaxle assembly is replaced (after TCM
initialization is complete), self-diagnosis result of "P1709" may be displayed. In this case, erase self-diagnosis result using CONSULT. After erasing self-diagnosis result, perform DTC P1701 reproduction procedure and check that malfunction is not detected.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE

NOTE:
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.

1. CHECK DTC DETECTION

With CONSULT
1.Turn ignition switch OFF.
2.Wait for at least 10 consecutive seconds.
3.Turn ignition switch ON.
4.Perform "Self Diagnostic Results" in "TRANSMISSION".
Is "P1709" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (ROM ASSEMBLY) (PART

1)
1.Turn ignition switch OFF.
2.Disconnect TCM connector and CVT unit connector.
3.Check continuity between TCM vehicle side harness connector terminals and CVT unit vehicle side harness connector terminals.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace damaged parts.

2. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (ROM ASSEMBLY) (PART

2)
Check continuity between TCM vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace damaged parts.

3. CHECK TERMINAL CORD ASSEMBLY

1.Remove terminal cord assembly. Exploded View.
2.Check continuity between CVT unit harness terminals and control valve harness connector terminals.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace damaged parts.

4. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. P1701.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace damaged parts.

5. REPLACE TCM

1.Replace TCM. CVT RE0F10B.
2.Perform "DTC CONFIRMATION PROCEDURE". .
Is the inspection result normal?
YES- INSPECTION END
NO- Replace transaxle assembly. Removal And Installation (2WD) or Removal And Installation (AWD).