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Home >> Infiniti >> 2002 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Engine Control System) >> DTC P1780: Shift Change Signal >> Diagnostic Procedure >> 1. Check DTC With TCM

1. Check DTC With TCM

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Check DTC with TCM. Refer to TROUBLE DIAGNOSIS

OK or NG 

OK: GO TO 2.

NG: Perform trouble shooting relevant to DTC indicated.

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