For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Diagnostic System Check for the door system? | Go to Step 2 | Go to Diagnostic System Check - Door Systems
2 |

1. Connect a scan tool.
2. Turn the ignition ON, with the engine Off.
3. Read the current personalization setting for the automatic door lock mode.

Is the personalization setting correct?

Go to Step 3

Go to Keyless Entry System Operation in Keyless Entry

3 | Verify that there is a fault with the automatic door locks. Do the automatic door locks operate correctly? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 4
4 |

1. Close all the doors.
2. While observing the Door Jamb Switch input on the scan tool, open and close a door.

Did the Door Jamb Switch input toggle when the door was opened and closed?

Go to Step 6

Go to Step 5

5 | Test the door jamb switch input circuit to the BCM 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 18 | Go to Step 6
6 | While observing the Brake Switch input on the scan tool, push the brake pedal and let it up. Does the Brake Switch input toggle? | Go to Step 10 | Go to Step 7
7 |

1. Probe at the Automatic Transmission Shift Lock Control Switch, on the Gear Out of Park circuit with a test lamp connected to battery positive voltage.
2. Move the Shifter out of PARK.

Did the test lamp illuminate?

Go to Step 8

Go to Step 14

8 | Test the Stop lamp switch input circuit to the BCM for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 9
9 | Test the Stop lamp switch input circuit to the BCM 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 18 | Go to Step 10
10 | While observing the Park Position Input on the scan tool, move the shifter in and out of park. Does the Park Position Input toggle? | Go to Step 13 | Go to Step 11
11 | Test the Gear Out Of Park Position input circuit to the BCM for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 12
12 | Test the Gear Out of Park Position input circuit to the BCM 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 18 | Go to Step 13
13 | Check for a poor connection at the 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 18 | Go to Step 16
14 | Check for a poor connection at the 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 18 | Go to Step 15
15 | Replace the Automatic Transmission Shift Lock Control switch. Refer to Automatic Transmission Shift Lock Control Switch replacement in Transmission/Transaxle. Did you complete the repair? | Go to Step 18 | --
16 | Replace the defective door jamb switch. Refer to Door Jamb Switch Replacement . Did you complete the repair? | Go to Step 18 | --
17 | Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Did you complete the repair? | Go to Step 18 | --
18 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3