Fix P0618: STEP-BY-STEP diagnostic GUIDE!

The P0618: Alternative Fuel Control Module KAM Error refers to a malfunction in the Keep Alive Memory (KAM) of the Alternative Fuel Control Module. This error can result from a faulty KAM, corrupted data, or a failing alternative fuel control module, leading to issues with data retention and alternative fuel system operation.

P0618 – Quick Overview

CodeInformation
MeaningP0618: Alternative Fuel Control Module KAM Error
Is it serious?Yes, it can affect the alternative fuel system’s operation.
Possible causes– Faulty KAM
– Corrupted data
– Faulty alternative fuel control module
How to diagnose?– Test KAM
– Reprogram or replace alternative fuel control module

P0618 Meaning

The P0618 code indicates a problem with the Keep Alive Memory (KAM) in the alternative fuel control module. KAM stores important system data that helps the control module remember learned parameters. If KAM is faulty or corrupted, the vehicle may experience problems with the alternative fuel system’s efficiency or functionality.

Step-by-step diagnostic guide

ActionDescriptionTools Needed
Check for Other CodesUse an OBD-II scanner to check for additional related codes that might provide more information on the alternative fuel system.OBD-II Scanner
Test the Keep Alive Memory (KAM)Use a diagnostic tool to check the performance and integrity of the KAM in the alternative fuel control module.Diagnostic Tool
Inspect Wiring and ConnectorsInspect the wiring and connectors related to the alternative fuel control module for damage, loose connections, or corrosion.Flashlight, Multimeter
Reprogram the Alternative Fuel Control ModuleIf the KAM is faulty or the data is corrupted, attempt to reprogram the module to resolve the issue.Diagnostic Tool, Programming Tool
Replace the Alternative Fuel Control ModuleIf reprogramming doesn’t resolve the issue, replace the alternative fuel control module to restore proper operation.Replacement Module, Tools
Clear the Code and TestAfter completing the repair or replacement, clear the code using an OBD-II scanner and test the vehicle to ensure the alternative fuel system is working properly.OBD-II Scanner, Vehicle Manual

Free PDF: How to choose OBD2 scanner

buyers guide popup

I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.

✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners

PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide. 

Just tell me where to send it.

Leave a Comment