TorqueMech OBD Code Guide
P0618 - Alternative Fuel Control Module Keep Alive Memory Error
The alternative fuel control module has a keep-alive memory fault.
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Code Overview
The alternative fuel control module has a keep-alive memory fault.
Common Causes
- Control module, relay, sensor, or actuator fault
- Damaged wiring or connector
- Calibration or power-supply issue
Diagnostic Steps
- Inspect related connectors, power feeds, and grounds
- Check supporting scan data and companion codes
- Confirm the control circuit before replacing the module or actuator
Related OBD Codes
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Next Steps
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