Causes and Fixes P0230 Code: Fuel Pump Primary Circuit

How to fix P0230 Code: Fuel Pump Primary Circuit A P0230 code is set when the computer (ECM/PCM) detects a signal to or from the fuel pump is outside of the expected values. Common causes include a bad fuel pump relay, fuel pump, and wiring issues. A P0230 code can be difficult to troubleshoot sometimes. Possible Causes of a P0230 Code: Bad Fuse or Fuel Pump Relay Bad Fuel Pump Wiring Issues (Open or Short) Fuel Pump Driver Module or Controller By using this information user assumes all risk of use.