Toyota Camry (XV70): Pressure Control Solenoid "B" Actuator Stuck Off (P07757F)
Toyota Camry Repair Manual XV70 (2018-2024) / Drivetrain / Ua80e (automatic Transmission / Transaxle) / Automatic Transaxle System / Pressure Control Solenoid "B" Actuator Stuck Off (P07757F)
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 malfunctions of the solenoid valves, transmission valve body assembly and automatic transaxle assembly (clutch, brake, gear, etc.).
Actual gear when solenoid (SL2) valve malfunction occurs (without fail-safe control):|
ECM commanded gear | 1st |
2nd | 3rd |
4th | 5th |
6th | 7th |
8th |
|---|---|---|---|---|---|---|---|---|
| *: Neutral | ||||||||
| Actual gear during SL2 stuck ON malfunction |
5th | 5th |
3rd to 5th | 4th to 5th |
5th | 6th |
7th | 8th |
|
Actual gear during SL2 stuck OFF malfunction |
1st | 2nd |
3rd | 4th |
N* | N* |
N* | N* |
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
|---|---|---|---|---|---|---|
| P07757F |
Pressure Control Solenoid "B" Actuator Stuck Off |
All of the following conditions are met (2-trip detection logic):
|
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Pressure Control Solenoid "C" Circuit Short to Battery (P079512)
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DESCRIPTION Refer to DTC P079512. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Memory
Note P079514
Pressure Control Solenoid "C"
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Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:
System See Procedure
Lane Tracing Assist System
Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY
(a) Check that there is ventilation from the booster side to the engine side, and no ventilation from the engine side to the booster side of the brake vacuum check valve assembly.
If the result is not as specified, replace th
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