What Does P2758 Mean?
The TCM has detected that the TCC pressure control solenoid is stuck in the on/engaged position and cannot disengage. This causes the torque converter clutch to remain locked when it should be unlocked, typically at idle and low speeds.
Common Causes
45%
TCC pressure control solenoid mechanically stuck in on position
25%
Valve body regulator valve stuck in apply position
15%
Shorted solenoid wiring or connector causing constant power
10%
Failed TCM driver circuit keeping solenoid energized
5%
Debris or contamination preventing solenoid valve from closing
Diagnostic Steps
1
Step 1: Perform visual inspection of transmission connector for signs of water intrusion or pin damage
2
Step 2: Using scan tool, command TCC solenoid off and monitor actual response and engine RPM behavior
3
Step 3: Disconnect TCC solenoid connector and observe if stalling condition resolves
4
Step 4: Test for short to power in solenoid circuit wiring using multimeter with solenoid disconnected
5
Step 5: If wiring is good, drop pan and remove solenoid to inspect for mechanical binding or valve body damage
Estimated Repair Cost
$250 - $1,400
Parts + labor, varies by vehicle and location
The TCM has detected that the TCC pressure control solenoid is stuck in the on/engaged position and cannot disengage. This causes the torque converter clutch to remain locked when it should be unlocked, typically at idle and low speeds.
The most common cause of P2758 (Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On) is: TCC pressure control solenoid mechanically stuck in on position
Typical repair costs for P2758 range from $250 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may stall at idle or exhibit severe shuddering at low speeds when torque converter should be unlocked. Creates potentially dangerous situations in traffic.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2758 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
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