DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible cause

P0791

INTERMEDIATE SPEED SENSOR A

(Intermediate Shaft Speed Sensor "A" Circuit)

When the following conditions are satisfied and this state is maintained for 5 seconds:

TCM power supply voltage: More than 11 V
After range change completion, it spends 2 seconds or more.
Primary pulley speed: Less than 150 RPM
Secondary pulley speed: 500 RPM or more

Harness or connector
(Primary speed sensor circuit is open or shorted)
Primary speed sensor