ETRS Equipped Electronic Component Description
Transmission Range Control Valve Switch
The transmission range control valve switch is a linear hall effect sensor that changes current flow based on magnetic field position relative to the sensor. The transmission control module (TCM) supplies a 9 V reference circuit to the transmission range control valve switch. Sensor signal circuit is an input to the TCM. The sensor signal circuit toggles between 0.8V and 2V based on valve position.
Park Inhibit Solenoid Actuator
The park inhibit solenoid actuator (PISA) is an actuator that when energized, will lock the park servo in the applied position, holding the parking pawl out of the park position.
Transmission Park Valve Switch
The transmission park valve switch is a linear hall effect sensor that changes current flow based on magnetic field position relative to the sensor. The transmission control module (TCM) supplies a 9 V reference circuit to the transmission park valve switch. Sensor 1 signal circuit and sensor 2 signal circuits both toggle between 0.8V and 2V based on valve position. There are two sensors within the component to serve as a redundancy for safety.
ETRS Component Name Correlation Chart
| Component Code | Function | Scan Tool Parameter - in TCM unless specified | Units |
|---|---|---|---|
| B13 Transmission Fluid Temperature Sensor | Oil Temperature | Transmission Fluid Temperature | Degrees |
| B14A Transmission Output Shaft Speed Sensor | Output Shaft Speed - Park Gear | Transmission OSS | RPM |
| "B14E Transmission Input/Intermediate Shaft Speed Sensor - Includes B14C Input Shaft Speed Sensor and B14D Intermediate Shaft Speed Sensor" |
Input Shaft Speed - | Transmission ISS | RPM |
| Intermediate Shaft Speed | Transmission Intermediate Speed Sensor | RPM | |
| B280 Automatic Transmission Accumulator Solenoid Valve | Accumulator - Autostop | Transmission Accumulator Solenoid Valve Command - ECM | On/Off |
| B315A Transmission Range Control Valve 1 Position Switch | Mode Valve 1/A Position Sensor | Transmission Range Sensor 1 | Volts |
| B315B Transmission Range Control Valve 2 Position Switch | Mode Valve 2/B Position Sensor | Transmission Range Sensor 2 | Volts |
| B316 Transmission Park Valve Position Switch | Park Valve Position Sensor 1 | Transmission Park Valve Position Sensor 1 | Volts |
| Park Valve Position Sensor 2 | Transmission Park Valve Position Sensor 2 | Volts | |
| Q77A Transmission Control Solenoid Valve 1 | CB123456 - LFS | Transmission Control Solenoid Valve 1 | Pressure |
| Q77B Transmission Control Solenoid Valve 2 | CB29 - LFS | Transmission Control Solenoid Valve 2 | Pressure |
| Q77C Transmission Control Solenoid Valve 3 | CB38 - VFS | Transmission Control Solenoid Valve 3 | Pressure |
| Q77D Transmission Control Solenoid Valve 4 | C4 - VFS | Transmission Control Solenoid Valve 4 | Pressure |
| Q77E Transmission Control Solenoid Valve 5 | C57R - LFS | Transmission Control Solenoid Valve 5 | Pressure |
| Q77F Transmission Control Solenoid Valve 6 | SOWC - C5789 - LFS | Transmission Control Solenoid Valve 6 | Pressure |
| Q77G Transmission Control Solenoid Valve 7 | Line - VFS | Transmission Control Solenoid Valve 7 | Pressure |
| Q77H Transmission Control Solenoid Valve 8 | TCC - VFS | Transmission Control Solenoid Valve 8 | Pressure |
| Q77J Transmission Control Solenoid Valve 9 | Clutch Select | Transmission Control Solenoid Valve 9 | On/Off |
| Q77K Transmission Control Solenoid Valve 10 | Accumulator Pressure Release | Transmission Control Solenoid Valve 10 | On/Off |
| M123 Transmission Park Valve Lock Solenoid Actuator | Park Inhibit Solenoid Actuator | Transmission Control Solenoid Valve 11 | On/Off |
| LFS - Linear Force Solenoid VFS - Variable Force Solenoid |
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