Toyota Camry (XV70): Pressure Control Solenoid "C" Actuator Stuck Off (P07957F)
Toyota Camry Repair Manual XV70 (2018-2024) / Drivetrain / Ua80e (automatic Transmission / Transaxle) / Automatic Transaxle System / Pressure Control Solenoid "C" Actuator Stuck Off (P07957F)
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 (SL3) valve malfunction occurs (without fail-safe control):|
ECM commanded gear | 1st |
2nd | 3rd |
4th | 5th |
6th | 7th |
8th |
|---|---|---|---|---|---|---|---|---|
| *: Neutral | ||||||||
| Actual gear during SL3 stuck ON malfunction |
3rd | 3rd |
3rd | 3rd |
3rd to 5th | 7th |
7th | 7th |
|
Actual gear during SL3 stuck OFF malfunction |
1st | 2nd |
N* | 4th |
5th | 6th |
N* | 8th |
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
|---|---|---|---|---|---|---|
| P07957F |
Pressure Control Solenoid "C" Actuator Stuck Off |
All of the following conditions are met (2-trip detection logic):
|
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DESCRIPTION Changing gears is performed by the ECM turning the solenoid (SL1, SL2, SL3, SL4, SL5 and SL6) valves on and off.
If an open or short occurs in any of the solenoid valve circuits, the ECM
Pressure Control Solenoid "L" Circuit Short to Ground or Open (P08BA14)
DESCRIPTION Refer to DTC P08BA12. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Memory
Note P08BA14
Pressure Control Solenoid "L"
Pressure Control Solenoid "L" Actuator Stuck Off (P08BA7F)
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 m
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Installation
INSTALLATION PROCEDURE 1. INSTALL HEATED OXYGEN SENSOR (for Bank 2)
HINT: Perform "Inspection After Repair" after replacing the heated oxygen sensor.
Click here
(a) Using SST, install the heated oxygen sensor to the front exhaust pipe assembly.
SST: 09224-00012 Torque: Specified
Coolant
ComponentsCOMPONENTS ILLUSTRATION
*1 RADIATOR CAP SUB-ASSEMBLY
*2 RADIATOR DRAIN COCK PLUG
*3 NO. 1 ENGINE UNDER COVER
- - ReplacementREPLACEMENT CAUTION / NOTICE / HINT
CAUTION: Do not remove the radiator cap sub-assembly or radiator drain cock plug while
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