Fault codes › P0818

P0818

Driveline Disconnect Switch Input Circuit

Generic code Transmission System High severity Hard repair
Free on OBD DashX

Want real-world data on P0818?

See which problems come with P0818, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P0818 on OBD DashX No sign-up needed · available in 10 languages

iWhat P0818 means

  • The fault code P0818 indicates that there is an issue with the input circuit for the driveline disconnect system, which is responsible for engaging or disengaging the front and rear driveline. This may cause issues with the vehicle's 4-wheel drive system.

!Possible symptoms

  • Illuminated 4
  • wheel drive warning light
  • Issues engaging or disengaging the 4
  • wheel drive system
  • Reduced traction or performance in 4
  • wheel drive mode
  • No response when attempting to engage or disengage the 4
  • wheel drive system.

?Possible causes

  • Faulty or damaged wiring in the driveline disconnect input circuit
  • Loose or corroded electrical connections
  • Failed driveline disconnect control module
  • Failed driveline disconnect actuator

Related parts

  • Driveline Switch:

Possible solutions

  • Inspect and repair any damaged wiring in the driveline disconnect input circuit
  • Check and tighten any loose or corroded electrical connections
  • Replace the driveline disconnect control module if necessary
  • Replace the driveline disconnect actuator if necessary
Free on OBD DashX

P0818 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P0818 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.