C0547

Vacuum Sensor Supply Voltage Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Check Engine Light Illuminates
Reduced engine power

Causes

Broken or damaged wiring harness
Poor contact in the sensor connector
Vacuum sensor malfunction
Problems with power from the ECU

How to Fix

Check the integrity of the vacuum sensor wiring harness
Check the contacts in the sensor and ECU connector
Measure the voltage at the sensor (should be 5V)
Replace the vacuum sensor if necessary
Clear error memory and check if error is returned

Related codes

P0105 P0106 P0107