Diagnostic Aids
Central Door Lock and Deadbolt functions are controlled by the rear integration module (RIM), the individual door modules and lock actuators, the driver door key lock cylinder, which is mounted in the driver door, and the key cylinder lock switch, which is contained within the driver door lock actuator. For more information on these components and features, refer to Power Door Locks Description and Operation .
Test Description
The numbers below refer to the step numbers on the diagnostic table.
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This step verifies that the keyless entry remote transmitter is functional for the test procedures that follow in steps 7 and 8. The remote transmitter must be used in place of the driver door key cylinder when it is the driver door deadbolt motor being tested in step 8.
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This step determines if the deadbolt motor has failed.
If it is a passenger door deadbolt being tested in this step, either the driver door key cylinder, or the keyless entry remote transmitter may be used to activate the deadbolt. However, if it is the driver door deadbolt being tested in this step, the driver door key cylinder cannot be used to activate the deadbolt because the lock actuator connector containing the key cylinder input circuit has been disconnected in step 7.
Care must be taken when observing the test lamp and attempting to activate the deadbolt motor from either the remote transmitter, or the driver door key cylinder. If you are using the remote transmitter, press the transmitter lock button twice within 3 seconds. The test lamp should flash once. If you are using the driver door key cylinder, either turn the key to the lock position and hold it there for 3 seconds or longer or turn it to the lock position twice within 3 seconds. The test lamp should flash once. Repeating either of these activations, however, will not produce another flash of the test lamp until the door has been commanded to undeadbolt. For either method of activation, remember that the door must be commanded to undeadbolt between each deadbolt command in order for the test to be accurate. Failure to follow these guidelines may result in misdiagnosis and the unnecessary replacement of parts.
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This step determines if it is the door module or a deadbolt motor control circuit that has failed.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Door Lock/Indicator Schematics Connector End View Reference: Power Door Systems Connector End Views DEFINITION: A door lock does not deadbolt or none of the door locks will deadbolt. This test is used when only a deadbolt function of the door lock system is inoperative and assumes that all DTCs have been diagnosed. | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Review the Central Door Lock and Deadbolt section of the Power Door Locks Description and Operation in order to verify that the Power Door Locks Inoperative - Deadbolt complaint is present. Refer to Power Door Locks Description and Operation . Does the Central Door Lock and Deadbolt system operate as described in the Description and Operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the Key Cylinder Lock/Unlock parameter change from Idle to the appropriate state? | Go to Step 4 | Go to Step 5 |
Verify that the door locks can be operated from the keyless entry remote transmitter. Do the door locks operate when using the remote transmitter? | Go to Step 7 | Go to Keyless Entry System Inoperative in Keyless Entry | |
5 |
Does the Key Cylinder Lock/Unlock parameter change from Idle to the appropriate state? | Go to Step 13 | Go to Step 6 |
6 |
Does the Key Cylinder Lock/Unlock parameter change from Idle to the appropriate state? | Go to Step 10 | Go to Step 9 |
7 |
Does the test lamp illuminate? | Go to Step 11 | Go to Step 8 |
Did the test lamp flash once? | Go to Step 14 | Go to Step 12 | |
9 | Test the key cylinder lock switch signal circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 15 |
10 | Test the key cylinder lock switch ground circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 15 |
11 | Test the deadbolt lock motor control circuit for a short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 16 |
Test the deadbolt lock motor control circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 16 | |
13 | Inspect for poor connections at the harness connector of 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 21 | Go to Step 17 |
14 | Inspect for poor connections at the harness connector of the appropriate 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 21 | Go to Step 18 |
15 | Inspect for poor connections at the harness connector of the driver door module (DDM). 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 21 | Go to Step 20 |
16 | Inspect for poor connections at the harness connector of the appropriate door 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 21 | Go to Step 19 |
17 | Replace the driver door lock actuator. Refer to Front Side Door Latch Replacement . Did you complete the replacement? | Go to Step 21 | -- |
18 | Replace the appropriate door lock actuator. Refer to Front Side Door Latch Replacement . Did you complete the replacement? | Go to Step 21 | -- |
19 |
Important: Perform the setup procedure for the replacement door module. Refer to Door Control Module Programming and Setup in Programming and Setup. Replace the door module. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | Go to Step 21 | -- |
20 |
Important: Perform the setup procedure for the replacement door module. Refer to Door Control Module Programming and Setup in Programming and Setup. Replace the door module. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
