What Does P07A0 Mean?
The TCM has detected slippage in transmission friction element G. This is an advanced transmission with multiple friction elements, and element G is not engaging properly. The speed sensor data shows the gear ratio deviating from the expected value when element G should be fully applied. This may affect specific gear combinations in complex multi-speed transmissions.
Safety Warning
Slippage in element G can cause RPM flares, loss of drive, or erratic shifting. Limit driving to low-speed, low-load situations. Continued driving will cause further damage to the friction material and may result in complete transmission failure.
Common Causes
35%
Worn friction element G clutch pack or friction material
25%
Insufficient or contaminated transmission fluid
15%
Apply circuit hydraulic leak (seals, piston, or gasket)
15%
Solenoid or valve body pressure delivery fault
10%
Excessive heat damage to friction material
Diagnostic Steps
1
Identify the gear states where friction element G is engaged using the manufacturer's clutch apply chart.
2
Monitor actual vs expected gear ratios in those states using shaft speed sensor PIDs.
3
Check transmission fluid level and condition — service if degraded.
4
Test transmission fluid temperature during operation to rule out overheating.
5
Perform line pressure testing in the gears served by element G.
6
If pressure is adequate, the transmission requires internal service to replace worn friction element G.
Estimated Repair Cost
$300 - $3,500
Parts + labor, varies by vehicle and location
The TCM has detected slippage in transmission friction element G. This is an advanced transmission with multiple friction elements, and element G is not engaging properly. The speed sensor data shows the gear ratio deviating from the expected value when element G should be fully applied. This may af...
The most common cause of P07A0 (Transmission Friction Element "G" Slip Detected) is: Worn friction element G clutch pack or friction material
Typical repair costs for P07A0 range from $300 to $3,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Slippage in element G can cause RPM flares, loss of drive, or erratic shifting. Limit driving to low-speed, low-load situations. Continued driving will cause further damage to the friction material and may result in complete transmission failure.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P07A0 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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