P0612 Fuel Injector Control Module Relay Control Circuit

OBD2 Code: P0612

Description: Fuel Injector Control Module Relay Control Circuit

Definition: The P0612 code indicates a malfunction in the fuel injector control module relay control circuit. This means there is an issue with the electrical circuit that controls the relay responsible for operating the fuel injectors, which can affect engine performance and efficiency.

p0612 – Fuel Injector Control Module Relay Control Circuit

Typical Severity: Moderate

Common Causes

p0612 – Fuel Injector Control Module Relay Control Circuit

Common causes:

• Faulty fuel injector control module relay
• Short circuit or open circuit in the wiring related to the fuel injector control module relay
• Corroded or loose electrical connections in the fuel injector control module circuit
• Defective fuel injector control module

 

Common Misdiagnosis

OBD2 Code: P0612

Description: Fuel Injector Control Module Relay Control Circuit

Common Misdiagnosis: Replacing the fuel injector control module without checking for wiring issues or relay faults.

 

Common Diagnostic Steps

OBD2 Code: P0612

Description: Fuel Injector Control Module Relay Control Circuit

• Check the fuel injector control module relay for proper operation.
• Inspect the wiring and connectors related to the fuel injector control module relay circuit for damage or corrosion.
• Test the battery voltage at the relay to ensure it is within specifications.
• Verify that the ground connections are secure and free of rust or debris.
• Use a scan tool to check for any additional codes that may indicate other issues with the fuel system or electrical components.
• If equipped, inspect and test any associated fuses for continuity and proper amperage rating.
• Consult vehicle-specific repair manuals or databases for detailed troubleshooting procedures specific to your make and model.