U0668

Lost Communication With Engine Oil Level Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

The oil level warning light is on
No oil level readings on the dashboard
Error message on the on-board computer display
There may be other related errors in the system
In some cases, the warning system does not work correctly

Causes

Oil level sensor malfunction
Open or short circuit in wiring
Poor contact in the sensor connector
Corrosion or oxidation of contacts
Engine control unit malfunction

How to Fix

Check the integrity of the wiring to the sensor
Clean and check sensor connector contacts
Check power and ground on the sensor
Replace the oil level sensor if necessary
Carry out diagnostics of the control unit in case of repeated errors

Related codes

U0669 U0667 U066A