What Does P2795 Mean?
The transmission control module has detected voltage in the gear shift direction circuit that exceeds the normal operating range. This high voltage condition interferes with proper gear direction selection.
Common Causes
35%
Shift direction sensor signal wire shorted to voltage source
30%
Failed shift direction sensor with internal short to power
20%
Damaged wiring harness with chafed insulation causing short
10%
Transmission control module internal failure creating voltage spike
5%
Aftermarket electrical accessories causing voltage backfeed
Diagnostic Steps
1
Step 1: Disconnect shift direction sensor and measure voltage on signal wire from TCM (should drop to near zero)
2
Step 2: Inspect wiring harness routing for areas where wires may contact hot circuits or sharp edges
3
Step 3: Test sensor for internal short by measuring resistance between signal terminal and power supply terminal
4
Step 4: Check for voltage on signal circuit at TCM connector with sensor disconnected
5
Step 5: Monitor signal voltage with oscilloscope during operation to detect intermittent shorts
Estimated Repair Cost
$175 - $1,100
Parts + labor, varies by vehicle and location
The transmission control module has detected voltage in the gear shift direction circuit that exceeds the normal operating range. This high voltage condition interferes with proper gear direction selection.
The most common cause of P2795 (Gear Shift Direction Circuit High) is: Shift direction sensor signal wire shorted to voltage source
Typical repair costs for P2795 range from $175 to $1,100, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause transmission to select wrong gear direction or enter limp mode. Could potentially engage reverse when forward is intended, creating dangerous situation.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2795 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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