What Does P2792 Mean?
The transmission control module detects an abnormally high voltage signal in the gate select direction circuit. This circuit controls the shifter mechanism's ability to select different gear ranges in electronically-controlled transmissions.
Common Causes
35%
Shorted gate select position sensor or wiring harness shorted to voltage
30%
Faulty transmission control module (TCM) internal circuit failure
20%
Damaged or corroded connector pins at TCM or sensor creating short circuit
15%
Failed shift actuator solenoid or motor with internal short
Diagnostic Steps
1
Step 1: Inspect gate select position sensor connector and wiring for damage, corrosion, or signs of short to voltage
2
Step 2: Measure voltage at gate select sensor signal wire with key on, engine off (should be 0.5-4.5V typically, check specifications)
3
Step 3: Disconnect gate select sensor and measure circuit resistance; check for short to power
4
Step 4: Test gate select actuator/solenoid for proper resistance and operation
5
Step 5: If all components test normal, substitute known-good TCM to verify module failure
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
The transmission control module detects an abnormally high voltage signal in the gate select direction circuit. This circuit controls the shifter mechanism's ability to select different gear ranges in electronically-controlled transmissions.
The most common cause of P2792 (Gate Select Direction Circuit High) is: Shorted gate select position sensor or wiring harness shorted to voltage
Typical repair costs for P2792 range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may become stuck in gear or experience unintended gear selection. May cause sudden loss of transmission function, creating hazardous driving conditions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2792 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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