Scheme 45
Scheme 46
| Callout | Component Name |
|---|---|
| 1 | Automatic Transmission Shift Lever |
| 1 | A/T Shift Lock Control Solenoid |
| 2 | Tap Up/Tap Down Switch |
Automatic Transmission Shift Lock Control Connector End Views
Automatic Transmission Shift Lever Connector Part Information 15332153 10-Way F GT 150 Series (BK) Pin Wire Color Circuit No. Function A TN 5026 Ignition Lock Cylinder Control Switch Signal B D-GN 5525 Tap Up/Tap Down Trans Enable Switch C YE 1491 Backlight Lamps Control D PK 1339 Ignition 1 Voltage E BN 41 Ignition 3 Voltage F PU/WH 5025 Ignition Lock Cylinder Control Actuator Supply Voltage G BK/WH 351 Ground H PU 5526 TCC Brake Switch J - - Not Used K D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage
Diagnostic Starting Point - Automatic Transmission Shift Lock Control
Begin the system diagnosis with the Diagnostic System Check - Vehicle in Vehicle DTC Information. The Diagnostic System Check will provide the following information
- The identification of the control modules which command the system
- The ability of the control modules to communicate through the serial data circuit
- The identification of any stored diagnostic trouble codes (DTCs) and their status
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Brake to Shift Control | Select rear integration module (RIM) Special Functions-Output Control | Commands the brake to shift solenoid ON for 5 seconds and OFF. Turns ON and OFF the automatic transmission shift lock control solenoid. |
Scan Tool Output Controls
Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON, with the engine OFF. Transmission shift lever in the PARK position. | |||
| Ignition 0 | Inputs | ON/OFF | ON |
| Ignition 1 | Inputs | ON/OFF | ON |
| Brake to Shift Control | Outputs | ON/OFF | ON |
Rear Integration Module
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON, with the engine OFF. Transmission shift lever in the PARK position. | |||
| Ignition Voltage | Transmission Data | Volts | 0-25v |
| IMS A/B/C/P | Transmission Data | Park, Park/Reverse, Reverse, Reverse/Neutral, Neutral, Neutral/Drive 4, Drive 4, Drive 4/Drive 3, Drive 3, Drive 3/Drive 2, Drive 2, Drive 2/Drive 1, Drive 1, Invalid, Open | Park |
| TCC Brake Switch | Transmission Data | ON/OFF | OFF |
Transmission Control Module (TCM) or Powertrain Control Module (PCM)
Symptoms - Automatic Transmission Shift Lock Control
| IMPORTANT | Review the system in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description and Operation . |
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the automatic transmission shift lock control system. Refer to «Checking Aftermarket Accessories»(/cadillac/srx/i-2003-2009/remont/body-electrical/#how-to-diagnosis-repair-the-wiring-systems-testing__checking-aftermarket-accessories) in Wiring Systems.
- Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom
- «Shift Lever Does Not Move with Brake Pedal Depressed»(/cadillac/srx/i-2003-2009/remont/automatic-trans/#shift-interlock-system__shift-lever-does-not-move-with)
- «Shift Lever Can Be Moved without Brake Pedal Depressed»(/cadillac/srx/i-2003-2009/remont/automatic-trans/#shift-interlock-system__shift-lever-can-be-moved-without)
Shift Lever Does Not Move with Brake Pedal Depressed
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Automatic Transmission Shift Lock Control Connector End Views , Computer/Integrating Systems Connector End Views in Computer/Integrating Systems. DEFINITION: Transmission shift lever does move out of the PARK position with the ignition ON and the brake pedal pressed. | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Apply the parking brake and block the wheels. Turn ON the ignition, with the engine OFF. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn OFF the ignition. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCC brake switch parameter in the transmission data display list. Press and release the brake pedal several times. Does the TCC brake switch status turn ON and OFF with the brake pedal? | Go to Step 4 | Go to Stop Lamps Inoperative in Lighting Systems |
| 4 | With a scan tool, observe the brake to shift control parameter in the rear integration module data list. Press and release the brake pedal several times. Does the brake to shift control status turn ON and OFF with the brake pedal? | Go to Step 5 | Go to Step 8 |
| 5 | Turn OFF the ignition. Connect a test lamp between the automatic transmission shift lock control solenoid supply voltage circuit and the automatic transmission shift lock control solenoid control circuit at the automatic transmission shift lock control solenoid. Turn ON the ignition, with the engine OFF. With a scan tool, command the brake to shift control ON and OFF several times while observing the test lamp. Does the test lamp turn ON and OFF with each command? | Go to Step 7 | Go to Step 6 |
| 6 | Test the automatic transmission shift lock control solenoid control circuit for and open or short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
| 7 | Inspect for poor connection at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
| 8 | Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
| 9 | Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement . Did you complete the replacement? | Go to Step 11 | |
| 10 | Replace the RIM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 11 | |
| 11 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
Shift Lever Does Not Move with Brake Pedal Depressed
Shift Lever Can Be Moved without Brake Pedal Depressed
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Automatic Transmission Shift Lock Control Connector End Views , Computer/Integrating Systems Connector End Views in Computer/Integrating Systems. DEFINITION: Transmission shift lever does not lock in the PARK position with the ignition ON and the brake pedal not pressed. | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Apply the parking brake and block the wheels. Turn ON the ignition, with the engine OFF. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Turn OFF the ignition. Install a scan tool. Ensure transmission shift lever is in the PARK position. Ensure brake pedal is released. Turn ON the ignition, with the engine OFF. With a scan tool, observer the brake to shift control status in the rear integration module (RIM) data list. Does the scan tool display ON status? | Go to Step 4 | Go to Step 8 |
| 4 | Turn OFF the ignition. Connect a test lamp between the automatic transmission shift lock control solenoid supply voltage circuit at the automatic transmission shift lock control solenoid and a good ground. Turn ON the ignition, with the engine OFF. Does the test lamp illuminate? | Go to Step 5 | Go to Step 9 |
| 5 | Connect a test lamp between the automatic transmission shift lock control solenoid supply voltage circuit and the automatic transmission shift lock control solenoid control circuit at the automatic transmission shift lock control solenoid. With a scan tool, command the brake to shift control ON and OFF several times while observing the test lamp. Does the test lamp turn ON and OFF with each command? | Go to Step 7 | Go to Step 6 |
| 6 | Test the automatic transmission shift lock control solenoid control circuit for and open, short or ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 8 |
| 7 | Inspect for poor connection at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
| 8 | Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 11 |
| 9 | Repair the open in the automatic transmission shift lock control solenoid supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 12 | |
| 10 | Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement . Did you complete the replacement? | Go to Step 12 | |
| 11 | Replace the RIM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 12 | |
| 12 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
Shift Lever Can Be Moved without Brake Pedal Depressed
Removal Procedure
- Remove the shift control trim plate by lifting the rear of the trim plate up then pull the plate rearward in order to release the front retaining tabs.
- Remove the center console assembly. Refer to «Console Replacement - Front Floor»(/cadillac/srx/i-2003-2009/remont/gauges-instrument-panels/#instrument-panel-gages-and-console) in Instrument Panel, Gages, and Console
- Disconnect the wiring harness connector (3) from the shift lock control pigtail connector.
- Remove the shift indicator lamp sockets (1 and 2) from the shift indicator by rotating the lamp sockets one quarter turn. Note: it may be easier to remove the shift indicator in order to access the lamp sockets. Refer to «Shift Indicator Replacement»(/cadillac/srx/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) .
- Remove the two screws (1) from the shift lock actuator (2).
- Remove the shift lock actuator (2) from the shift control assembly.
- Remove the two screws (1) from the tap up/down switch (3).
- Remove the tap up/down switch (3) from the shift control assembly.
- Remove the shift lock actuator wiring harness from the shift control assembly.
Installation Procedure
- Install the shift lock actuator wiring harness to the shift control assembly.
- Install the shift lock actuator (2) to the shift control assembly.
- Install the two screws (1) to the shift lock actuator (2).
- Install the tap up/down switch (3) to the shift control assembly.
- Install the two screws (1) to the tap up/down switch (3).
- Install the shift indicator lamp sockets (1 and 2) to the shift indicator by rotating the lamp sockets one quarter turn. Note: if the shift indicator was removed in order to gain access to the lamp sockets, reinstall the shift indicator at this time. Refer to «Shift Indicator Replacement»(/cadillac/srx/i-2003-2009/remont/automatic-trans/#automatic-transmission-5l40-e5l50-e-introduction-2-of-2) .
- Connect the wiring harness connector (3) to the shift lock control pigtail connector.
- Install the center console assembly. Refer to «Console Replacement - Front Floor»(/cadillac/srx/i-2003-2009/remont/gauges-instrument-panels/#instrument-panel-gages-and-console) in Instrument Panel, Gages, and Console
- Install the shift control trim plate by inserting the front retaining tabs to the console. Then press down on the rear of the trim plate to engage the rear retaining tabs.
Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components.
- The automatic transmission shift lock control solenoid
- The brake switch
- The rear integration module (RIM)
- The transmission control module (TCM) or powertrain control module (PCM)
With the ignition ON, battery positive voltage is supplied to the automatic transmission shift lock control solenoid from the ignition 3 relay. The automatic transmission shift lock control solenoid is controlled by the rear integration module. When the rear integration module (RIM) receives a class 2 serial data message from the transmission control module (TCM) or powertrain control module (PCM) indicating that the shift lever is in the PARK position the rear integration module (RIM) grounds the automatic transmission shift lock control solenoid control circuit. This causes the solenoid to energize mechanically locking the shift lever in the PARK position. When the driver presses the brake pedal the rear integration module receives the brake applied signal and turns off the ground to the automatic transmission shift lock control solenoid control circuit. This allows the shift lever to be moved out of the PARK position.
See also:
• Diagnostic System Check - Vehicle
• Checking Aftermarket Accessories
• Testing for Intermittent Conditions and Poor Connections
• Computer/Integrating Systems Connector End Views
• Stop Lamps Inoperative
• Circuit Testing
• Wiring Repairs
• Connector Repairs
• Control Module References
• Console Replacement - Front Floor
• Shift Indicator Replacement
• Automatic Transmission Shift Lock Control Description and Operation
• Shift Lever Does Not Move with Brake Pedal Depressed
• Shift Lever Can Be Moved without Brake Pedal Depressed
• Automatic Transmission Shift Lock Control Connector End Views