Toyota Camry (XV70): Pressure Control Solenoid "G" Actuator Stuck Off (P28077F)
Toyota Camry Repair Manual XV70 (2018-2024) / Drivetrain / Ua80e (automatic Transmission / Transaxle) / Automatic Transaxle System / Pressure Control Solenoid "G" Actuator Stuck Off (P28077F)
DESCRIPTION
Based on signals from the transmission revolution sensors (NT and NC), the actual gear is detected.
The ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical malfunction of the solenoid valves, transmission valve body assembly and automatic transaxle assembly (clutch, brake, gear, etc.).
Actual gear when solenoid (SL4) valve malfunction occurs (without fail-safe control):|
ECM commanded gear | 1st |
2nd | 3rd |
4th | 5th |
6th | 7th |
8th |
|---|---|---|---|---|---|---|---|---|
| *: Neutral | ||||||||
| Actual gear during SL4 stuck ON malfunction |
4th | 4th |
3rd | 4th |
4th to 5th | 6th |
7th | 6th |
|
Actual gear during SL4 stuck OFF malfunction |
1st | 2nd |
3rd | N* |
5th | N* |
7th | 8th |
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
|---|---|---|---|---|---|---|
| P28077F |
Pressure Control Solenoid "G" Actuator Stuck Off |
All of the following conditions are met (2-trip detection logic):
|
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DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Memory
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Components
COMPONENTS ILLUSTRATION
*1 AIR CLEANER CAP WITH AIR CLEANER HOSE
*2 THROTTLE BODY GASKET
*3 THROTTLE BODY WITH MOTOR ASSEMBLY
*4 VACUUM HOSE
*5 NO. 1 FUEL VAPOR FEED HOSE
*6 NO. 2 VENTILATION HOSE
*7 NO. 2 WATER BY-PASS HOSE
*8
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