2012 Nissan-Datsun Altima L4-2.5L (QR25DE) Vehicle > ALL Diagnostic Trouble Codes ( DTC ) > Testing and Inspection > P Code Charts > P1701 CVT RE0F09B TCM 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. NOTE: Since "P1701" will be indicated when replacing TCM, perform diagnosis after erasing "SELF-DIAG RESULTS" DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: If "DTC CONFIRMATION PROCEDURE" has been previously performed, always turn ignition switch OFF. Then wait at least 10 seconds before performing the next test. https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 1/9
1. CHECK DTC DETECTION With CONSULT 1.Turn ignition switch ON. 2.Wait for at least 2 consecutive seconds. 3.Perform "SELF-DIAG RESULTS" mode for "TRANSMISSION". Is "P1701" detected? YES- Go to "Diagnosis Procedure". NO- Check intermittent incident. See: Vehicle > Initial Inspection and Diagnostic Overview > Intermittent Incident. Diagnosis Procedure 1. CHECK TCM POWER SOURCE 1.Turn ignition switch OFF. 2.Disconnect TCM harness connector. 3.Turn ignition switch ON. https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 2/9
4.Check voltage between TCM harness connector F16 terminal 46, 48, 45, 47 and 5, 42. YES- GO TO 6. NO- GO TO 2. 2. CHECK TCM GROUND CIRCUIT https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 3/9
1.Turn ignition switch OFF. 2.Check continuity between TCM harness connector F16 terminal 5, 42 and ground. YES- GO TO 3. NO- Repair or replace damaged parts. 3. CHECK TCM POWER CIRCUIT https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 4/9
1.Turn ignition switch ON. 2.Check voltage between TCM harness connector F16 terminal 46, 48, 45, 47 and ground. https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 5/9
YES- GO TO 6. NO- GO TO 4. 4. CHECK HARNESS BETWEEN TCM AND IPDM E/R AND BETWEEN TCM AND BATTERY (PART 1) 1.Turn ignition switch OFF. 2.Disconnect IPDM E/R harness connector F10. 3.Check continuity between TCM harness connector F16 (A) terminal 46, 48 and IPDM E/R harness connector F10 (B) terminal 58. https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 6/9
4.Disconnect fuse block J/B harness connector E6. 5.Check continuity between TCM harness connector F16 terminal 45, 47 and fuse block J/B harness connector E6 terminal 12P. YES- GO TO 5. NO- Repair or replace damaged parts. 5. CHECK HARNESS BETWEEN TCM AND IPDM E/R AND BETWEEN TCM AND BATTERY (PART 2) https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 7/9
Check continuity between TCM harness connector F16 terminal 45, 46, 47, 48 and ground. YES-Check the following. If NG, repair or replace damaged parts. - 10A fuse (No. 34, located in IPDM E/R) - 10A fuse (No. 11, located in fuse block) - Ignition switch. See: Power and Ground Distribution > Electrical > Coupe (coupe) or See: Power and Ground Distribution > Electrical > Sedan (sedan). https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 8/9
NO- Repair or replace damaged parts. 6. DETECT MALFUNCTIONING ITEMS Check TCM connector pin terminals for damage or loose connection with harness connector. YES- Replace TCM. See: Control Module, CVT > Removal and Replacement > Exploded View. NO- Repair or replace damaged parts. https://my.alldata.com/repair/#/repair/article/49744/component/3926/itype/423/nonstandard/699294 9/9