Automatic Transmission Shift Lock Control Inoperative W/ Column Shifter
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
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Listen for an audible click when the park relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
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Tests for voltage at the coil side of the park relay. The IGN SW Fuse supplies power to the coil side of the park relay through the ignition switch.
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Verifies that the Rear Integration Module (RIM) is providing ground to the park relay.
-
Tests if ground is constantly being applied to the park relay.
-
Tests for voltage at the switch side feed circuit of the park relay. The Prk/Rev Fuse supplies power to the switch side feed circuit of the park relay.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Auto Trans Shift Lock Control System Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check - Automatic Transmission Shift Lock Control |
Do you hear a click when you command the park relay ON and OFF? | -- | Go to Step 8 | Go to Step 3 | |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 18 | |
Does the test lamp turn ON and OFF with each command? | -- | Go to Step 14 | Go to Step 5 | |
Does the test lamp remain illuminated with each command? | -- | Go to Step 7 | Go to Step 6 | |
6 | Test the control circuit of the park relay for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 15 |
7 | Test the control circuit of the park relay 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 25 | Go to Step 15 |
8 |
Does the test lamp illuminate? | -- | Go to Step 9 | Go to Step 19 |
9 |
Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 11 |
10 |
Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 12 |
11 | Test the feed circuit of the stoplamp/automatic transmission shift lock control switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 14 |
12 | Test the feed circuit of the auto trans shift lock control actuator for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 25 | Go to Step 16 |
13 |
Does the test lamp illuminate? | -- | Go to Step 17 | Go to Step 20 |
14 | Inspect for poor connections at the park relay. 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 25 | Go to Step 22 |
15 | Inspect for poor connections at the harness connector of the 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 25 | Go to Step 23 |
16 |
Important: Inspect the stoplamp/automatic transmission shift lock control switch for proper adjustment. Refer to Stop Lamp Switch Replacement and Stop Lamp Switch Adjustment in Hydraulic Brakes. Inspect for poor connections at the stoplamp/automatic transmission shift lock control switch. 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 25 | Go to Step 21 |
17 |
Important: Inspect the auto trans shift lock control actuator for proper adjustment and free mechanical movement. Refer to Automatic Transmission Shift Lock Control Assemble - Off Vehicle in Steering Wheel and Column-Tilt. Inspect for poor connections at the auto trans shift lock control actuator. 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 25 | Go to Step 24 |
18 | Repair the coil side feed circuit of the park relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 25 | -- |
19 | Repair the switch side feed circuit of the park relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 25 | -- |
20 | Repair the ground circuit of the auto trans shift lock control actuator. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 25 | -- |
21 | Replace the stoplamp/automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement and Stop Lamp Switch Adjustment in Brakes. Did you complete the replacement? | -- | Go to Step 25 | -- |
22 | Replace the park relay. Did you complete the replacement? | -- | Go to Step 25 | -- |
23 | Replace the RIM. Refer to Rear Integration Body Control Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 25 | -- |
24 | Replace the auto trans shift lock control actuator. Refer to Automatic Transmission Shift Lock Control Disassemble - Off Vehicle and Automatic Transmission Shift Lock Control Assemble - Off Vehicle in Steering Wheel and Column-Tilt. Did you complete the replacement? | -- | Go to Step 25 | -- |
25 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
Automatic Transmission Shift Lock Control Inoperative W/ Console Shifter
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
-
Listen for an audible click when the park relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
-
Tests for voltage at the coil side of the park relay. The IGN SW Fuse supplies power to the coil side of the park relay through the ignition switch.
-
Verifies that the Rear Integration Module (RIM) is providing ground to the park relay.
-
Tests if ground is constantly being applied to the park relay.
-
Tests for voltage at the feed side of the park relay. The Prk/Rev Fuse supplies power to the feed side of the park relay.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform A Diagnostic System Check - Auto Trans Shift Lock Control? | -- | Go to Step 2 | Go to Diagnostic System Check - Automatic Transmission Shift Lock Control |
Do you hear a click when you command the park relay ON and OFF? | -- | Go to Step 8 | Go to Step 3 | |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 20 | |
Does the test lamp turn ON and OFF with each command? | -- | Go to Step 16 | Go to Step 5 | |
Does the test lamp remain illuminated with each command? | -- | Go to Step 7 | Go to Step 6 | |
6 | Test the control circuit of the park relay for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 27 | Go to Step 17 |
7 | Test the control circuit of the park relay 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 27 | Go to Step 17 |
8 |
Does the test lamp illuminate? | -- | Go to Step 9 | Go to Step 21 |
9 |
Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 11 |
10 |
Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 12 |
11 | Test the feed circuit of the stoplamp/auto trans shift lock control switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 27 | Go to Step 16 |
12 | Test the internal relay coil side feed circuit of the auto trans shift lock actuator assembly for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 27 | Go to Step 18 |
13 |
Does the test lamp illuminate? | -- | Go to Step 14 | Go to Step 22 |
14 | Connect a test lamp between the internal relay switch side feed circuit of the auto trans shift lock actuator assembly harness connector and the ground circuit of the auto trans shift lock actuator assembly harness connector. Does the test lamp illuminate? | -- | Go to Step 19 | Go to Step 15 |
15 | Test the internal relay switch side feed circuit of the auto trans shift lock actuator assembly for a short to ground or an open. Did you find and correct the condition? | -- | Go to Step 27 | -- |
16 | Inspect for poor connections at the park relay. 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 27 | Go to Step 24 |
17 | Inspect for poor connections at the harness connector of the 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 27 | Go to Step 25 |
18 |
Important: Inspect the stoplamp/auto trans shift lock control switch for proper adjustment. Refer to Stop Lamp Switch Replacement and Stop Lamp Switch Adjustment in Hydraulic Brakes. Inspect for poor connections at the auto trans shift lock control switch. 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 27 | Go to Step 23 |
19 |
Important: Inspect the auto trans shift lock actuator assembly for missing, broken, or mis-aligned parts. Inspect for poor connections at the auto trans shift lock actuator assembly. 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 27 | Go to Step 26 |
20 | Repair the coil side feed circuit of the park relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 27 | -- |
21 | Repair the switch side feed circuit of the park relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 27 | -- |
22 | Repair the ground circuit of the auto trans shift lock actuator assembly. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 27 | -- |
23 | Replace the stoplamp/auto trans shift lock control switch. Refer to Stop Lamp Switch Replacement and Stop Lamp Switch Adjustment in Hydraulic Brakes. Did you complete the replacement? | -- | Go to Step 27 | -- |
24 | Replace the park relay. Did you complete the replacement? | -- | Go to Step 27 | -- |
25 | Replace the RIM. Refer to Rear Integration Body Control Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 27 | -- |
26 | Replace the auto trans shift lock actuator assembly. Refer to Transmission Control Replacement in Automatic Transmission - 4T80-E. Did you complete the replacement? | -- | Go to Step 27 | -- |
27 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 2 |
