P0727

Engine Speed Input Circuit No Signal

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Switching the box to emergency mode
Check Engine Light Illuminates
Floating engine speed
Problems with cruise control

Causes

Engine speed sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Mechanical damage to the synchronization disk
Problems with the transmission control unit

How to Fix

Check the integrity of the sensor wiring
Clean sensor connector contacts
Check the sensor resistance (compare with standards)
Inspect the sync disk for damage
If necessary, replace the speed sensor

Related codes

P0725 P0726 P0728