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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1780: Shift Change Signal >> Diagnostic Procedure >> 1. Check DTC With TCM
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1. Check DTC With TCM

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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