P1701

P1701 TCM





Description
This malfunction is detected when power (backup) is not supplied to TCM and the learning function stops.

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-III. After erasing self-diagnosis, perform reproduction procedures of
DTC P1701 and check that a malfunction is not detected.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.
1.PRECONDITIONING
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
- GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Start the engine.
2. Maintain idling state for 10 seconds or more.
3. Drive the vehicle for 10 seconds or more.
4. Stop the vehicle.
5. Turn ignition switch OFF.
6. Wait for 2 seconds or more.
7. Start the engine.
8. Select "Self Diagnostic Results" in "TRANSMISSION".
Is "P1701" detected?
YES - Go to P1701.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TCM POWER CIRCUIT (PART 1)
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Turn ignition switch ON.
4. Check voltage between TCM vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK TCM POWER CIRCUIT (PART 2)
1. Turn ignition switch OFF.
2. Check voltage between TCM vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES - GO TO 9.
NO - GO TO 6.
3.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 1)
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between TCM vehicle side harness connector terminals and IPDM E/R vehicle side harness connector terminal.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace damaged parts.
4.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEMS
Check the following.
- IPDM E/R
- 10A fuse (No.55, located in the IPDM E/R)
- Harness for short or open between IPDM E/R and ignition switch ( Ignition Power Supply.)
- Ignition switch
Is the inspection result normal?
YES - Check intermittent incident. Intermittent Incident.
NO - Repair or replace damaged parts.
6.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 1)
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between TCM vehicle side harness connector terminal and IPDM E/R vehicle side harness connector terminal.





Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace damaged parts.
7.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES - GO TO 8.
NO - Repair or replace damaged parts.
8.DETECT MALFUNCTIONING ITEMS
Check the following.
- IPDM E/R
- 20A fuse (No.43, located in the IPDM E/R)
- Harness for short or open between IPDM E/R and battery ( Battery Power Supply
- Battery
Is the inspection result normal?
YES - Check intermittent incident. Intermittent Incident.
NO - Repair or replace damaged parts.
9.CHECK HARNESS BETWEEN TCM AND GROUND
Check continuity between TCM vehicle side harness connector terminal and ground.





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