DTC DETECTION LOGIC

DTC | Self-diagnosis name | DTC detection condition | Possible cause
P2780 | Downshift switch circuit low | A DTC is set if TCM detects the paddle shifter (shift-down switch) ON signal for a certain period. |

- Paddle shifter (shift-down switch)
- Harness or connector
  [Short in the paddle shifter (shift-down switch) circuit]

DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE OPERATION
If another “DTC CONFIRMATION PROCEDURE” is performed just before the next test, turn the ignition switch OFF and wait for 10 seconds or more, then perform the next test.
>>GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

1. Start the engine and wait for 1 minute or more.
2. Check “Self Diagnostic Result” of “TRANSMISSION”.

Is DTC P2780 detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>Go to Intermittent Incident.