P1701

P1701 TCM

Description

When the power supply to the TCM is cut OFF, for example because the battery is removed, and the self-diagnosis memory function stops, 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 "P1701" 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


CAUTION:
Always drive vehicle at a safe speed.

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
1.Start the engine.
2.Run engine for 10 seconds or more at idle speed.
3.Drive the vehicle for 10 seconds or more.
4.Select "Data Monitor" in "TRANSMISSION".
5.Stop the vehicle.
6.Turn ignition switch OFF and wait for 2 seconds or more.
7.Start the engine.
8.Select "Self Diagnostic Results" in "TRANSMISSION".
Is "P1701" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK TCM POWER SUPPLY CIRCUIT (PART 1)

1.Turn ignition switch OFF.
2.Disconnect TCM connector.
3.Turn ignition switch ON.
4.Check voltage between TCM harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK TCM POWER SUPPLY CIRCUIT (PART 2)

1.Turn ignition switch OFF.
2.Check voltage between TCM harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 6.

3. CHECK CIRCUIT BETWEEN TCM AND IPDM E/R (PART 1)

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R connector.
3.Check continuity between TCM harness connector terminals and IPDM E/R harness connector terminal.





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

4. CHECK CIRCUIT BETWEEN TCM AND IPDM E/R (PART 2)

Check continuity between TCM harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace damaged parts.

5. DETECT MALFUNCTIONING ITEM

Check the following:
- Harness for short or open between ignition switch and IPDM E/R. Ignition Power Supply.
- 10A fuse (No. 55, located in IPDM E/R). Fuse, Connector And Terminal Arrangement.
- IPDM E/R
- Ignition switch
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Repair or replace damaged parts.

6. DETECT MALFUNCTIONING ITEM

Check the following:
- Harness for short or open between battery and TCM. Battery Power Supply.
- 10A fuse (No. 33, located in fuse and fusible link block). Fuse, Fusible Link And Relay Box.
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Repair or replace damaged parts.

7. CHECK CIRCUIT BETWEEN TCM AND GROUND

Check continuity between TCM harness connector terminals and ground.





Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Repair or replace damaged parts.