C054D

Symptoms

• Deterioration of vehicle dynamics
• Increased fuel consumption
• Check Engine Light Is On
• Unstable engine operation at idle

Causes

• Open or short circuit in vacuum sensor B wiring harness
• Vacuum sensor B fault
• Poor contact in the sensor connector
• Problems with the ECU

How to Fix

1. Check the continuity of the vacuum sensor B wiring harness.
2. Check sensor connections and connectors
3. Test Vacuum Sensor B with a Multimeter
4. Replace vacuum sensor B if necessary
5. Check and replace wiring harness if necessary
6. Reset the error and check if it returns

Related codes

Error C054D by Vehicle Brand