What Does P075B Mean?
Shift Solenoid G is performing outside its expected range or is mechanically stuck in the off position. The TCM commands solenoid G to engage but detects that the expected gear ratio change is not occurring. This leads to missed upshifts or downshifts in the higher gear ranges of multi-speed transmissions.
Common Causes
35%
Shift solenoid G stuck in the off position due to debris or internal failure
25%
Valve body bore wear preventing the solenoid from actuating the shift valve
20%
Contaminated transmission fluid clogging solenoid G fluid passages
15%
Internal clutch pack or band wear in the gear controlled by solenoid G
5%
Insufficient solenoid current due to wiring resistance
Diagnostic Steps
1
Monitor commanded vs. actual gear ratios in live data to confirm solenoid G is not producing the expected gear engagement.
2
Check transmission fluid level and quality — low fluid or contamination directly impacts solenoid performance.
3
Measure solenoid G resistance and verify it is within the manufacturer specification.
4
Command solenoid G on/off with a bi-directional scan tool and monitor for the expected pressure change or audible click.
5
If solenoid tests pass, suspect internal mechanical failure — a transmission pressure test may be needed to isolate the clutch circuit.
Estimated Repair Cost
$250 - $1,400
Parts + labor, varies by vehicle and location
Shift Solenoid G is performing outside its expected range or is mechanically stuck in the off position. The TCM commands solenoid G to engage but detects that the expected gear ratio change is not occurring. This leads to missed upshifts or downshifts in the higher gear ranges of multi-speed transmi...
The most common cause of P075B (Shift Solenoid G Performance/Stuck Off) is: Shift solenoid G stuck in the off position due to debris or internal failure
Typical repair costs for P075B range from $250 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle can likely be driven at reduced speed but may not be able to access all gears. Avoid highway driving if shifting is compromised. Have the transmission inspected promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P075B to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
