For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Power Moding Schematics Connector End View Reference: Master Electrical Component List
1 | Verify the condition is present. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 2
2 |

1. Remove the small square cover from the lower steering column trim cover.
2. Push the ignition lock cylinder control actuator release button to the left.
3. Turn the key to the OFF position and remove the key.

Were you able to turn the key to the OFF position and remove the key?

Go to Step 3

Go to Ignition Key Cannot Be Removed from the Ignition Lock Cylinder

3 |

1. Turn OFF the ignition.
2. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
3. Disconnect the ignition lock cylinder control actuator.
4. Turn ON the ignition, with the engine OFF.
5. Connect a test lamp between the accessory voltage circuit and the shift select switch park signal circuit of the ignition lock cylinder control actuator.
6. Cycle the gear shifter from Park to Drive.

Does the test lamp turn ON and OFF with each cycle?

Go to Step 10

Go to Step 4

4 | Does the test lamp remain illuminated with each cycle? | Go to Step 6 | Go to Step 5
5 |

1. Put the gear shifter into Park.
2. Connect a test lamp between the shift select switch park signal circuit of the ignition lock cylinder control actuator and B+ voltage.

Does the test lamp illuminate?

Go to Step 11

Go to Step 7

6 | Test the shift select switch park signal circuit of the ignition lock cylinder control actuator for a short to ground. Did you find and correct the condition? | Go to Step 14 | Go to Step 9
7 | Test the shift select switch park signal circuit of the ignition lock cylinder control actuator for an open. Did you find and correct the condition? | Go to Step 14 | Go to Step 8
8 | Test the ground circuit of the ignition lock cylinder control switch for an open. Did you find and correct the condition? | Go to Step 14 | Go to Step 9
9 | Inspect for poor connections at the shifter assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 12
10 | Inspect for poor connections at the ignition lock cylinder control actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 13
11 | Repair the accessory voltage circuit of the ignition lock cylinder control actuator. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 14 | --
12 | Replace the shifter assembly. Refer to Transmission Control Replacement . Did you complete the replacement? | Go to Step 14 | --
13 | Replace the ignition lock cylinder control actuator. Refer to Ignition Lock Cylinder Solenoid Replacement . Did you complete the replacement? | Go to Step 14 | --
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3