What Does P1913 Mean?
The transmission line pressure control solenoid circuit has an open circuit or short to ground. This solenoid regulates main line pressure for all transmission functions, and electrical faults cause pressure regulation problems.
Safety Warning
Loss of line pressure control can cause transmission to lose drive completely or operate in limp mode only. May result in sudden loss of power while driving, creating dangerous situations.
Common Causes
30%
Failed transmission line pressure control solenoid
25%
Damaged or corroded internal transmission wiring harness or connector
20%
Contaminated transmission fluid affecting solenoid electrical properties
15%
Shorted or broken wiring between TCM and solenoid
10%
TCM solenoid driver circuit failure
Diagnostic Steps
1
Step 1: Check transmission fluid level and condition; contaminated fluid can cause solenoid electrical failures
2
Step 2: Remove transmission pan and inspect internal connector at valve body for corrosion or damage
3
Step 3: Measure resistance of line pressure control solenoid and compare to specifications
4
Step 4: Check continuity and insulation resistance of wiring between solenoid and TCM connector
5
Step 5: Test TCM solenoid driver circuit output voltage and waveform with voltmeter or oscilloscope
Estimated Repair Cost
$300 - $1,500
Parts + labor, varies by vehicle and location
The transmission line pressure control solenoid circuit has an open circuit or short to ground. This solenoid regulates main line pressure for all transmission functions, and electrical faults cause pressure regulation problems.
The most common cause of P1913 (Transmission Pressure Circuit Solenoid Open or Short to Ground) is: Failed transmission line pressure control solenoid
Typical repair costs for P1913 range from $300 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Loss of line pressure control can cause transmission to lose drive completely or operate in limp mode only. May result in sudden loss of power while driving, creating dangerous situations.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1913 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Manufacturer
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