DTC Detection Logic
WARNING: This page is about a different car, the 2012 Infiniti G25. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC P1239 or P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to
"DTC LOGIC
".
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
|---|---|---|---|
| P1239 | Throttle position sensor (bank 2) circuit range/performance | Rationally incorrect voltage is sent to ECM compared with the signals from TP sensor 1 and TP sensor 2. |
|
| P2135 | Throttle position sensor (bank 1) circuit range/performance |