P0793

Intermediate Shaft Speed Sensor A Circuit No Signal

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Automatic transmission emergency mode (switching only to 2nd or 3rd gear)
Hard gear shifts
Floating engine speed
Check Engine light comes on
Loss of power during acceleration

Causes

Intermediate shaft speed sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
TCM module malfunction
Mechanical problems in the gearbox (gear wear)

How to Fix

Check the integrity of the wiring to the sensor
Check the sensor resistance (compare with the nominal value)
Clean sensor connector contacts
If necessary, replace the intermediate shaft speed sensor
Scan TCM memory for additional codes

Related codes

P0791 P0792 P0794