What Does P2806 Mean?
The transmission range sensor is not properly aligned or calibrated with the actual transmission gear position. This prevents accurate gear position reporting to the PCM.
Common Causes
40%
Transmission range sensor physically misaligned or improperly installed
25%
Sensor not relearned/calibrated after replacement or transmission service
20%
Damaged shift linkage or shift cable out of adjustment
10%
Worn or damaged sensor mounting points on transmission
5%
Internal valve body wear affecting sensor position
Diagnostic Steps
1
Step 1: Verify transmission range sensor mounting bolts are tight and sensor is properly seated
2
Step 2: Check shift linkage and cable adjustment per manufacturer specifications
3
Step 3: Perform transmission range sensor relearn/calibration procedure using scan tool or manufacturer-specific process
4
Step 4: Monitor sensor position values with scan tool while manually shifting through all gear positions
5
Step 5: If alignment cannot be achieved, remove sensor and inspect mounting surface and internal shift shaft condition
Estimated Repair Cost
$100 - $450
Parts + labor, varies by vehicle and location
The transmission range sensor is not properly aligned or calibrated with the actual transmission gear position. This prevents accurate gear position reporting to the PCM.
The most common cause of P2806 (Transmission Range Sensor Alignment) is: Transmission range sensor physically misaligned or improperly installed
Typical repair costs for P2806 range from $100 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may not start in Park, may start in gear causing unexpected movement, or backup lights may not function properly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2806 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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