DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P2127

APP SEN 2/CIRC

(Accelerator pedal position sensor 2 circuit low input)

An excessively low voltage from the APP sensor 2 is sent to ECM.

Harness or connectors
(APP sensor 2 circuit is open or shorted.)

(TP sensor circuit shorted.)
Accelerator pedal position sensor (APP sensor 2)
Electric throttle control actuator (TP sensor 1 and 2)