P0818
Driveline Disconnect Switch Input Circuit
P0818 is an OBD-II diagnostic trouble code meaning: Driveline Disconnect Switch Input Circuit. Common causes: open or short circuit in switch circuit, transmission disconnect switch malfunction. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Gear shifting problems
- Unexpected transmission behavior
- Reduced engine power
- Errors in the operation of the all-wheel drive system (if any)
Causes
- Open or short circuit in switch circuit
- Transmission disconnect switch malfunction
- Problems with wiring harness or contacts
- Transmission control module (TCM) malfunction
- Corrosion or oxidation of contacts
How to Fix
- Check the continuity of the switch circuit
- Check the condition of the contacts and wiring harness
- Test the transmission disconnect switch
- Check Transmission Control Module (TCM) operation
- Replace switch or repair circuit if necessary
Related codes
Error P0818 by Vehicle Brand
FAQ
What does the P0818 code mean?
P0818 is an OBD-II diagnostic trouble code that indicates: Driveline Disconnect Switch Input Circuit
What causes a P0818 error code?
The most common causes of P0818 include: Open or short circuit in switch circuit; Transmission disconnect switch malfunction; Problems with wiring harness or contacts; Transmission control module (TCM) malfunction.
How do I fix a P0818 diagnostic trouble code?
To fix P0818: Check the continuity of the switch circuit. Check the condition of the contacts and wiring harness. Test the transmission disconnect switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0818?
Yes, but get it checked soon
How much does it cost to fix P0818?
The estimated repair cost for P0818 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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