Driveline Disconnect Switch Input Circuit

Where it lives

For P0818, the switch sits on the circuit this code reports. The description of P0818 reports a fault at the switch.

Check these first

• An open or short in the driveline disconnect switch circuit
• A faulty driveline disconnect switch
• Corrosion or water in the switch connector
• A PCM software fault on the disconnect input
• A switch installed or configured wrong

What to do next

1. Read the driveline disconnect switch state on a scan tool
2. Test the disconnect switch circuit for an open or short
3. Check the switch connector for water or corrosion
4. Check the switch installation and configuration
5. Replace the switch if the circuit tests good
6. Clear the code and retest

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