Transmission Control Module Scan Tool Information MVA
| Table 1: | Transmission Control Module Scan Tool Data Parameters |
| Table 2: | Transmission Control Module Scan Tool Output Controls |
The Transmission Control Module Scan Tool Data List contains all transmission related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
The values below represent a typical display recorded from a properly functioning system.
Note: Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used/referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
The scan tool values from a properly functioning transmission may be used for comparison with the transmission you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
Parameter | System State | Expected Value | Definition |
|---|---|---|---|
A/T Oil Temperature 1 | -- | Varies | The scan tool displays temperature (°C or °F). This is the current A/T oil temperature. |
Lock Up | -- | OFF | The scan tool displays ON or OFF. ON if lock up. Off if except lock up. |
Lock Up Solenoid Status | -- | OFF | The scan tool displays ON or OFF. This is the current status of the lock up solenoid. |
Neutral Position SW Signal | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is P and N. Off if shift lever position is not P or N. |
Shift Status | -- | 1st | The scan tool displays 1st, 2nd, 3rd or 4th (O/D). This is the actual shift lever position. |
Shift SW Status (2 Range) | -- | ON | The scan tool displays ON or OFF. On if shift lever position is 2. Off if shift lever position not 2. |
Shift SW Status (3 Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is 3. Off if shift lever position is not 3. |
Shift SW Status (D Range) | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is D and 3. Off if shift lever position is not D and 3. |
Shift SW Status (L Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is L. Off if shift lever position is not L. |
Shift SW Status (N Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is N. Off if shift lever position is not N. |
Shift SW Status (P Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is P. Off if shift lever position is not P. |
Shift SW Status (R Range) | -- | Varies | The scan tool displays ON or OFF. ON if shift lever position is R. Off if shift lever position is not R. |
SPD (NC) | -- | Varies | The scan tool displays RPM. This is the counter gear speed. |
SPD (NT) | -- | Varies | The scan tool displays RPM. This is the input turbine speed. |
Scan Tool Output Control | Description |
|---|---|
Activate the Lock Up | This output control is used to control the shift solenoid DSL to set the automatic transaxle to the lock-up condition. |
Activate the Solenoid (DSL) | This output control is used to control the operation of the shift solenoid DSL. |
Activate the Solenoid (SL1) | This output control is used to control the operation of the shift solenoid SL1. |
Activate the Solenoid (SL2) | This output control is used to control the operation of the shift solenoid SL2. |
Activate the Solenoid (SL4) | This output control is used to control the operation of the shift solenoid SL4. |
Activate the Solenoid (SLT) | This output control is used to control the operation of the shift solenoid SLT and raise the line pressure. |
Control the Shift Position | This output control is used to control the operation of the shift solenoid valves. |
Transmission Control Module Scan Tool Information MVB
| Table 1: | Transmission Control Module Scan Tool Data Parameters |
| Table 2: | Transmission Control Module Scan Tool Output Controls |
The Transmission Control Module Scan Tool Data List contains all transmission related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
The values below represent a typical display recorded from a properly functioning system.
Important: Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used/referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
The scan tool values from a properly functioning transmission may be used for comparison with the transmission you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
Parameter | System State | Expected Value | Definition |
|---|---|---|---|
A/T Oil Temperature 1 | -- | Varies | The scan tool displays temperature (°C or °F). This is the current A/T oil temperature. |
Lock Up | -- | OFF | The scan tool displays ON or OFF. ON if lock up solenoid. OFF if except lock up solenoid. |
Neutral Position SW Signal | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is N. Off if shift lever position is not N. |
Shift Status | -- | Varies | The scan tool displays L, 2, 3 or D. The scan tool displays actual gear position. |
Shift SW Status (2 Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is 2. OFF if shift lever position is not 2. |
Shift SW Status (3 Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is 3. OFF if shift lever position is not 3. |
Shift SW Status (D Range) | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is D. Off if shift lever position is not D. |
Shift SW Status (L Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is L. Off if shift lever position is not L. |
Shift SW Status (N Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is N. Off if shift lever position is not N. |
Shift SW Status (P Range) | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is P. Off if shift lever position is not P. |
Shift SW Status (R Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is R. Off if shift lever position is not R. |
SLU Solenoid Status | -- | OFF | The scan tool displays ON or OFF. ON if lock up. Off if not lock up. |
SPD (NT) | -- | Varies | The scan tool displays RPM. This is the input turbine speed. |
ST Solenoid Status | -- | OFF | The scan tool displays ON or OFF. OFF-ON-OFF if up-shifting and down-shifting between 3rd and 4th gears while driving. |
Stop Light Switch | -- | OFF | The scan tool displays ON or OFF. ON if brake pedal depressed. OFF if brake pedal released. |
Scan Tool Output Control | Description |
|---|---|
Activate the Lock Up | This output control is used to control the shift solenoid SLU to set the automatic transaxle to the lock-up condition. |
Activate the Solenoid (S1) | This output control is used to control the operation of the shift solenoid S1. |
Activate the Solenoid (S2) | This output control is used to control the operation of the shift solenoid S2. |
Activate the Solenoid (ST) | This output control is used to control the operation of the shift solenoid ST. |
Activate the Solenoid (SLT) | This output control is used to control the operation of the shift solenoid SLT. |
Activate the Solenoid (SLU) | This output control is used to control the operation of the shift solenoid SLU. |
Control the Shift Position | This output control is used to control the operation of the shift position. |
Transmission Control Module Scan Tool Information MVD
| Table 1: | Transmission Control Module Scan Tool Data Parameters |
| Table 2: | Transmission Control Module Scan Tool Output Controls |
The Transmission Control Module Scan Tool Data List contains all transmission related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
The values below represent a typical display recorded from a properly functioning system.
Important: Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used/referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
The scan tool values from a properly functioning transmission may be used for comparison with the transmission you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
Parameter | System State | Expected Value | Definition |
|---|---|---|---|
A/T Oil Temperature 1 | -- | Varies | The scan tool displays temperature (°C or °F). This is the current A/T oil temperature. |
Lock Up Solenoid Status | -- | OFF | The scan tool displays ON or OFF. ON if lock up solenoid. OFF if except lock up solenoid. |
Neutral Position SW Signal | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is P or N. Off if shift lever position is not P or N. |
Shift Status | -- | Varies | The scan tool displays D or S. This is the actual shift lever position. |
Shift SW Status (D Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is D or S. OFF if shift lever position is not D or S. |
Shift SW Status (N Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is N. OFF if shift lever position is not N. |
Shift SW Status (P Range) | -- | ON | The scan tool displays ON or OFF. ON if shift lever position is P. Off if shift lever position is not P. |
Shift SW Status (R Range) | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is R. Off if shift lever position is not R. |
SLT Solenoid Status | -- | OFF | The scan tool displays ON or OFF. ON if accelerator pedal is depressed. Off if accelerator pedal is released. |
SPD (NC) | -- | Varies | The scan tool displays RPM. This is the counter gear speed. |
SPD (NT) | -- | Varies | The scan tool displays RPM. This is the input turbine speed. |
Sports Mode Selection SW | -- | OFF | The scan tool displays ON or OFF. ON if shift lever position is S, "+" or "-". OFF if shift lever position is not S, "+" or "-". |
Sports Shift Down SW | -- | OFF | The scan tool displays ON or OFF. ON if continuously press "-" (Down Shift). OFF if release "-" (Down Shift). |
Sports Shift Up SW | -- | OFF | The scan tool displays ON or OFF. ON if continuously press "+" (Up Shift). OFF if release "+" (Up Shift). |
Stop Light Switch | -- | OFF | The scan tool displays ON or OFF. ON if brake pedal depressed. OFF if brake pedal released. |
Scan Tool Output Control | Description |
|---|---|
Activate the Lock Up | This output control is used to control the shift solenoid DSL to set the automatic transaxle to the lock-up condition. |
Activate the Solenoid (SL1) | This output control is used to control the operation of the shift solenoid SL1. |
Activate the Solenoid (SL2) | This output control is used to control the operation of the shift solenoid SL2. |
Activate the Solenoid (SL3) | This output control is used to control the operation of the shift solenoid SL3. |
Activate the Solenoid (SL4) | This output control is used to control the operation of the shift solenoid SL4. |
Activate the Solenoid (DSL) | This output control is used to control the operation of the shift solenoid DSL. |
Activate the Solenoid (SLT) | This output control is used to control the operation of the shift solenoid SLT and raise the line pressure. |
Activate the Solenoid (SR) | This output control is used to control the operation of the shift solenoid SR. |
Control the Shift Position | This output control is used to control the operation of the shift position. |
