Test Description

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

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: Tests for voltage at the ignition 1 voltage circuit of the automatic transmission shift lock control solenoid.
4: Verifies that the BCM is providing a ground to the automatic transmission shift lock control solenoid.
5: Tests if ground is constantly being applied to the automatic transmission shift lock control solenoid.

DTC B2705

Step	Action	Yes	No
Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Automatic Transmission Shift Lock Control Connector End Views or Body Control System Connector End Views
1	Did you perform A Diagnostic System Check - Automatic Transmission Shift Lock Control?	Go to Step 2	Go to Diagnostic System Check - Automatic Transmission Shift Lock Control
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, command the brake to shift 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 in Wiring Systems	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 a good ground. Turn ON the ignition, with the engine OFF. With a scan tool, command the brake to shift 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	Does the test lamp remain illuminated?	Go to Step 6	Go to Step 7
5	Test the automatic transmission 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 12	Go to Step 8
6	Test the control circuit of the automatic transmission shift lock control solenoid for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 9
7	Test the control circuit of the automatic transmission shift lock control solenoid for an open or short to 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 9
8	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 in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 10
9	Inspect for poor connections at the harness connector of the body control module. 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
10	Replace the automatic transmission shift lock control solenoid. Refer Automatic Transmission Shift Lock Actuator Replacement . Did you complete the replacement?	Go to Step 12	-
11	Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement?	Go to Step 12	-
12	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