P0853 moderate

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.

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Keep driving?
Short distances only
DIY difficulty
moderate
Estimated cost
$100 - $500 (parts and labor)
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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

Step-by-Step Diagnostic Procedure

  1. Monitor transmission range sensor data with a scan tool while selecting Drive

  2. Check shift linkage adjustment at the transmission

  3. Inspect wiring and connector at the range sensor for damage

  4. Test range sensor resistance values in the Drive position

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.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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