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, a malfunction is detected.
NOTE:
Since "P1701" will be indicated when replacing TCM, perform diagnosis after erasing "Self Diagnostic
Results".


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 ON.
2.Wait for at least 2 consecutive seconds.
3.Perform "Self Diagnostic Results" in "TRANSMISSION".
Is "P1701" detected?
YES- Go to Diagnosis Procedure (see below).
NO- Check intermittent incident. Intermittent Incident.


Diagnosis Procedure


1. CHECK TCM POWER SOURCE

1.Turn ignition switch OFF.
2.Disconnect TCM connector.
3.Check voltage between TCM vehicle side harness connector terminals.





Is the inspection result normal?
YES- GO TO 8.
NO- GO TO 2.

2. CHECK TCM GROUND CIRCUIT

1.Turn ignition switch OFF.
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 TCM POWER CIRCUIT

Check voltage between TCM vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES- GO TO 8.
NO-1 (Battery voltage is not supplied between terminals 46, 48 and ground)-GO TO 4.
NO-2 (Battery voltage is not supplied between terminal 47 and ground)-GO TO 6.

4. CHECK HARNESS BETWEEN TCM AND IPDM E/R (STEP 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 5.
NO- Repair or replace damaged parts.

5. CHECK HARNESS BETWEEN TCM AND IPDM E/R (STEP 2)

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





Is the inspection result normal?
YES-Check the following.
- Harness for short or open between ignition switch and IPDM E/R.
- 10A fuse (No. 58, located in IPDM E/R)
- Ignition switch. Ignition Power Supply.
NO- Repair or replace damaged parts.

6. CHECK HARNESS BETWEEN TCM AND BATTERY (STEP 1)

1.Turn ignition switch OFF.
2.Disconnect battery positive terminal.
3.Check continuity between TCM vehicle side harness connector terminals and battery positive terminal.





Is the inspection result normal?
YES- GO TO 7.
NO-Check the following.
- Harness
- 10A fuse (No. 38, located in fuse block)

7. CHECK HARNESS BETWEEN TCM AND BATTERY (STEP 2)

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





Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace damaged parts.

8. DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Replace TCM. Exploded View.
NO- Repair or replace damaged parts.