Drive Switch Input Circuit
The P0853 code means the vehicle's onboard diagnostic system has detected: Drive Switch Input Circuit. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $100 - $500 (parts and labor)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Check Engine Light illuminated
- Transmission does not recognize Drive selection
- Gear indicator may not show D
- Delayed or no engagement when shifting to Drive
Probable Causes (Ranked by Likelihood)
- Faulty transmission range sensor or drive switch Very High
- Wiring fault in drive switch input circuit High
- Shift linkage out of adjustment Moderate
- TCM input circuit malfunction Low
Frequently Asked Questions
Can a linkage adjustment fix P0853?
Yes, if the shift linkage is out of adjustment, the range sensor may not correctly detect the Drive position. Adjusting the linkage is often a simple fix.
Will the car still move with P0853?
In many cases the transmission will still engage Drive mechanically, but the TCM may default to a safe shift strategy or limp mode because it cannot confirm Drive is selected.
Is the range sensor expensive to replace?
The sensor itself is typically $50 to $150. Labor depends on its location, with most being accessible from outside the transmission.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Monitor transmission range sensor data with a scan tool while selecting Drive
-
Check shift linkage adjustment at the transmission
-
Inspect wiring and connector at the range sensor for damage
-
Test range sensor resistance values in the Drive position
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2008-2018 Ford Fusion
- 2010-2020 Chevrolet Equinox
- 2007-2017 Honda Civic
- 2009-2019 Toyota Corolla
Related Codes
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