DTC P1712 - Engine Torque Control Signal #2 Circuit Malfunction -
WARNING: This page is about a different variant/trim than selected.
- DTC DETECTING CONDITION:
- Two consecutive driving cycles with malfunction
- TROUBLE SYMPTOM:
- Excessive shift shock
CAUTION: After repair or replacement of malfunctioning parts, conduct Clear Memory Mode < Ref. to OPERATION , CLEAR MEMORY MODE > and INSPECTION MODE < Ref. to OPERATION , INSPECTION MODE. > - WIRING DIAGRAM:
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK INPUT SIGNAL FOR ECM.
|
Is the measured value more than 4.5 V? | Go to step 2. | Go to step 4. |
| 2 CHECK INPUT SIGNAL FOR ECM. Measure voltage between ECM and chassis ground. Connector & terminal (B136) No. 18 (+) - Chassis ground (-): |
Is the measured value more than 10 V? | Repair battery short circuit in harness between ECM and TCM connector. | Go to step 3. |
| 3 CHECK POOR CONTACT. Check poor contact in ECM connector. |
Is there poor contact in ECM connector? | Repair poor contact in ECM connector. | Contact with SOA service center.
NOTE:
Inspection by DTM is required, because probable cause is deterioration of multiple parts.
|
4 CHECK HARNESS BETWEEN ECM AND TCM CONNECTOR.
|
Is the measured value less than 1 Ω? | Go to step 5. | Repair open circuit in harness between ECM and TCM connector. |
| 5 CHECK HARNESS BETWEEN ECM AND TCM CONNECTOR. Measure resistance of harness between ECM and chassis ground. Connector & terminal (B136) No. 18 - Chassis ground: |
Is the measured value less than 10 Ω? | Go to step 6. | Repair ground short circuit in harness between ECM and TCM connector. |
| 6 CHECK POOR CONTACT. Check poor contact in TCM connector. |
Is there poor contact in TCM connector? | Repair poor contact in TCM connector. | Replace TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . > |