Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2: Listen for an audible click when the A/T shift lock control solenoid operates. Command both the ON and OFF states. Repeat the commands, as necessary.
- 3: Tests for voltage at controlled voltage supply circuit of the A/T shift lock control solenoid.
| Step | Action | Yes | No |
|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Computer/Integrating Systems Connector End Views in Computer/Integrating Systems |
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 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 (A/T) shift lock control solenoid turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn OFF the ignition. Disconnect the A/T shift lock control solenoid. Connect a test lamp between the shift lock solenoid control circuit at the connector of the A/T shift lock solenoid and a good ground. 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 A/T shift lock control solenoid for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. 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 A/T 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 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 in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
| 7 | Replace the A/T shift lock control solenoid. Refer Shift Lock Solenoid/Switch Assembly Replacement . Did you complete the replacement? | Go to Step 9 | |
| 8 | IMPORTANT: Perform the set up procedures for the BCM. Replace the BCM. Refer to Control Module References in Computer/Integrating Systems 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 set up procedures for the BCM. |
The numbers below refer to the step numbers on the diagnostic table.
- 2: Listen for an audible click when the A/T shift lock control solenoid operates. Command both the ON and OFF states. Repeat the commands, as necessary.
- 3: This step tests for voltage at the command voltage circuit of the A/T shift lock control solenoid.
- 5: This step tests if ground is constantly being applied to the A/T shift lock control solenoid.
| Step | Action | Yes | No |
|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Computer/Integrating Systems Connector End Views in Computer/Integrating Services |
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 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 (A/T) shift lock control solenoid turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn OFF the ignition. Disconnect the A/T shift lock control solenoid. Connect a test lamp between the shift lock solenoid control circuit at the connector of the A/T shift lock solenoid and a good ground. 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 A/T shift lock control solenoid for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 7 |
| 5 | Test the A/T shift lock control solenoid ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 6 |
| 6 | Inspect for poor connections at the harness connector of the A/T 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 10 | Go to Step 8 |
| 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 in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 |
| 8 | Replace the A/T shift lock control solenoid. Refer Shift Lock Solenoid/Switch Assembly Replacement . Did you complete the replacement? | Go to Step 10 | |
| 9 | IMPORTANT: Perform the set up procedures for the BCM. Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.Did you complete the replacement? | Go to Step 10 | |
| 10 | 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 set up procedures 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 . |
