Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Door Lock/Indicator Schematics DEFINITION: This diagnostic should be used to diagnose a failure of the driver door lock actuator (lock, unlock or both). | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Actuate all the door lock switches to both the lock and unlock positions. Did the driver door lock and unlock from all of the switches? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Did the passenger doors lock and unlock from all of the switches? | Go to Step 4 | Go to Power Door Locks Inoperative - All Doors and Switches or to Power Door Locks Inoperative - One Door or Switch |
4 | Is the vehicle equipped with keyless entry? | Go to Step 5 | Go to Step 12 |
5 | Did the drivers door lock? | Go to Step 7 | Go to Step 6 |
6 | Did the driver door unlock? | Go to Step 9 | Go to Step 12 |
7 |
Did the test lamp illuminate? | Go to Step 8 | Go to Step 14 |
8 |
Did the data value change from inactive to active when the switch was actuated? | Go to Step 10 | Go to Step 16 |
9 |
Did the test lamp illuminate? | Go to Step 15 | Go to Step 22 |
10 | Connect a test lamp between the battery positive voltage circuit on the coil side of the driver door lock relay at the relay block and a good ground. Did the test lamp illuminate? | Go to Step 11 | Go to Step 23 |
11 | Connect a test lamp between the battery positive voltage circuit on the switched side of the driver door lock relay at the relay block and a good ground. Did the test lamp illuminate? | Go to Step 15 | Go to Step 23 |
12 |
Did the test lamp illuminate? | Go to Step 13 | Go to Step 20 |
13 |
Did the test lamp illuminate? | Go to Step 17 | Go to Step 21 |
14 | Test for an open in the driver door unlock relay control circuit between the body control module (BCM) and the driver door unlock relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 26 | Go to Step 18 |
15 | Inspect for poor connections at the driver door unlock 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 26 | Go to Step 19 |
16 | Check for an open in the door unlock control circuit between the BCM and the door lock switches. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 26 | Go to Step 18 |
17 | Inspect for poor connections at the driver door lock 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 26 | Go to Step 24 |
18 | Inspect for poor connections 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 26 | Go to Step 25 |
19 | Replace the driver door unlock relay. Did you complete the repair? | Go to Step 26 | -- |
20 | Repair the open in the door lock control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 26 | -- |
21 | Repair the open in the door unlock control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 26 | -- |
22 | Repair the open in the driver door lock relay ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 26 | -- |
23 | Repair the open in the driver door lock relay battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 26 | -- |
24 | Replace the door lock actuator. Refer to Door Lock Actuator Replacement . Did you complete the repair? | Go to Step 26 | -- |
25 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the repair? | Go to Step 26 | -- |
26 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
