What Does P07AE Mean?
Transmission friction element "G" is not engaging properly or is stuck in the released position. The TCM has detected that this clutch pack or band cannot achieve the required clamping force to establish the commanded gear ratio. Element G typically participates in specific gear combinations, and its failure to apply results in slipping, flared shifts, or complete inability to enter certain gears. Modern multi-speed transmissions rely on precise element timing, making this a significant concern.
Safety Warning
Driving is not recommended. A non-engaging friction element leads to unpredictable gear availability and potential sudden loss of drive power. Continued driving will worsen internal damage. Tow the vehicle for professional diagnosis.
Common Causes
35%
Worn or deteriorated friction element G clutch pack unable to generate adequate holding torque
25%
Hydraulic pressure deficit at element G servo from valve body wear or passage restrictions
20%
Failed control solenoid for element G application circuit
12%
Servo piston seal failure causing internal pressure bypass at element G
8%
Low or contaminated transmission fluid compromising system pressure
Diagnostic Steps
1
Verify transmission fluid level is correct and inspect fluid condition for signs of clutch material contamination or burning.
2
Use scan tool to monitor calculated gear ratios during all shift transitions, identifying where element G fails to engage properly.
3
Perform pressure testing at the element G apply circuit and compare readings to factory specifications under loaded conditions.
4
Test the element G control solenoid with scan tool output tests — verify resistance, current draw, and mechanical actuation response.
5
Drop the transmission pan and inspect for excessive friction material, metal particles, or sludge indicating internal wear.
Estimated Repair Cost
$1,800 - $4,500
Parts + labor, varies by vehicle and location
Transmission friction element "G" is not engaging properly or is stuck in the released position. The TCM has detected that this clutch pack or band cannot achieve the required clamping force to establish the commanded gear ratio. Element G typically participates in specific gear combinations, and it...
The most common cause of P07AE (Transmission Friction Element "G" Performance/Stuck Off) is: Worn or deteriorated friction element G clutch pack unable to generate adequate holding torque
Typical repair costs for P07AE range from $1,800 to $4,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Driving is not recommended. A non-engaging friction element leads to unpredictable gear availability and potential sudden loss of drive power. Continued driving will worsen internal damage. Tow the vehicle for professional diagnosis.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P07AE 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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