Scheme 127
Scheme 127: Shift Lock Control Schematics
Scheme 128
Scheme 128: Shift Lock Control Component Views
| Callout | Component Name |
|---|
| 1 | Floor Shift Assembly |
| 2 | PRNDL Lamp |
| 3 | A/T Shift Lock Control Solenoid (A/T) |
Scheme 129
Scheme 129: A/T Shift Lock Control Solenoid
| Connector Part Information OEM: 12052832 Service: See Catalog Description: 2-Way F Metri-Pack 150 Series (BK) |
A/T Shift Lock Control SolenoidConnector Parts Information
| Pin | Wire Color | Circuit No. | Function |
|---|
| A | PK | 139 | Ignition 1 Voltage |
| B | WH | 816 | A/T Shift Lock Solenoid Supply Voltage |
A/T Shift Lock Control SolenoidConnector Terminal Identification
Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2: Listen for an audible click when the automatic transmission shift lock control solenoid operates. Command both the ON and OFF states. Repeat the commands as necessary.
- 4: This step tests for ground at the control circuit of the automatic transmission shift lock control solenoid.
| Step | Action | Yes | No |
|---|
| Schematic Reference: Shift Lock Control Schematics Connector End View Reference: Shift Lock Control Connector End Views |
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, command the Brake to Shift Relay output control ON and OFF. Does the automatic transmission shift lock control solenoid turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Turn OFF the ignition. Connect a test lamp between the automatic transmission shift lock control solenoid voltage supply circuit at the connector of the automatic transmission shift lock control solenoid connector and a good ground. Turn ON the ignition, with the engine OFF. Does the test lamp illuminate? | Go to Step 4 | Go to Step 8 |
| 4 | Turn OFF the ignition. Disconnect the automatic transmission shift lock control solenoid. Connect a test lamp between the shift lock solenoid control circuit at the connector of the automatic transmission shift lock solenoid and battery positive voltage. Turn ON the ignition, with the engine OFF. With a scan tool, command the Brake to Shift Relay output control ON and OFF several times. Does the test lamp illuminate ON and OFF with each command? | Go to Step 6 | Go to Step 5 |
| 5 | Test the control circuit of the automatic transmission shift lock control solenoid for an open. Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
| 7 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
| 8 | Repair the open or short to ground in the automatic transmission shift lock control solenoid voltage supply circuit. Refer to Circuit Testing and Wiring Repairs. Did you complete the repair? | Go to Step 11 | |
| 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 | IMPORTANT: Perform the setup procedure for the BCM. Replace the BCM. Refer to Control Module References for replacement, setup, and programming.Did you complete the replacement? | Go to Step 11 | |
| 11 | Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? | Go to Step 2 | System OK |
| IMPORTANT |
|---|
| Perform the setup procedure for the BCM. |
The numbers below refer to the step numbers on the diagnostic table.
- 2: Listen for an audible click when the automatic transmission shift lock control solenoid operates. Command both the ON and OFF states. Repeat the commands as necessary.
- 3: This step tests the control circuit of the automatic transmission shift lock control solenoid.
| Step | Action | Yes | No |
|---|
| Schematic Reference: Shift Lock Control Schematics Connector End View Reference: Shift Lock Control Connector End Views |
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, command the Brake to Shift Relay output control ON and OFF. Does the automatic transmission shift lock control solenoid turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Turn OFF the ignition. Disconnect the automatic transmission shift lock control solenoid. Connect a test lamp between the shift lock solenoid control circuit at the connector of the automatic transmission shift lock solenoid and battery voltage. Turn ON the ignition, with the engine OFF. With a scan tool, command the Brake to Shift Relay output control ON and OFF several times. Does the test lamp illuminate ON and OFF with each command? | Go to Step 5 | Go to Step 4 |
| 4 | Test the control circuit of the automatic transmission shift lock control solenoid for a short to battery voltage. Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 9 | Go to Step 6 |
| 5 | Inspect for poor connections at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 9 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
| 7 | Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement. Did you complete the replacement? | Go to Step 9 | |
| 8 | IMPORTANT: Perform the setup procedure for the BCM. Replace the BCM. Refer to Control Module References for replacement, setup, and programming.Did you complete the replacement? | Go to Step 9 | |
| 9 | Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? | Go to Step 2 | System OK |
| IMPORTANT |
|---|
| Perform the setup procedure for the BCM. |
Symptoms - Automatic Transmission Shift Lock Control
| IMPORTANT | Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description and Operation (with L61) or Automatic Transmission Shift Lock Control Description and Operation (with L66). |
