GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2002 🢒 Rendezvous - FWD 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Power Door Locks Inoperative

Power Door Locks Inoperative Aztek

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. This step verifies that all of the power door locks, including the endgate locks are inoperative.

Step

Action

Yes

No

Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views , Body Control System Connector End Views , or Electrical Center Identification Views

1

Did you perform the Door System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

2

Verify the power door locks inoperative fault is present.

Do the power door locks operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring System

Go to Step 3

3

Are all of the power door locks inoperative, including the endgate locks?

Go to Step 4

Go to Step 5

4
  1. Install a scan tool.
  2. Turn on the ignition, with the engine off.
  3. With a scan tool, observe the door unlock switch parameter in the Body Control Module data list.
  4. Activate a door lock switch to UNLOCK.

Does the scan tool display change from Inactive to Active?

Go to Step 8

Go to Step 7

5

Test the appropriate door lock actuator unlock 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 13

Go to Step 6

6

Test the appropriate door lock actuator lock 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 13

Go to Step 10

7

Test the driver door lock switch lock signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 8

8

Inspect for poor connections at the center console fuse block harness connector C2. 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 13

Go to Step 9

9

Inspect for poor connections at the body control 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 13

Go to Step 11

10

Inspect for poor connections at 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 13

Go to Step 12

11
  1. Perform the set-up procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
  2. Replace the body control Module. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 13

--

12

Replace the appropriate door lock actuator. Refer to Front Side Door Lock Actuator Replacement or Rear Side Door Lock Actuator Replacement .

Did you complete the repair?

Go to Step 13

--

13

Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 3

Power Door Locks Inoperative Rendezvous

Step

Action

Yes

No

Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views , Body Control System Connector End Views , or Electrical Center Identification Views

1

Did you perform the Door System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

2

Verify the power door locks inoperative fault is present.

Do the power door locks operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring System

Go to Step 3

3

Are all of the power door locks inoperative from both door lock switches?

Go to Step 6

Go to Step 4

4

Are the power door locks inoperative from a single door lock switch?

Go to Step 7

Go to Step 5

5

Is the driver door lock actuator the inoperative actuator?

Go to Step 8

Go to Step 9

6
  1. Install a scan tool.
  2. Turn on the ignition, with the engine off.
  3. With a scan tool, command the door lock On and Off.

Do the door lock actuators activate?

Go to Step 10

Go to Step 11

7

Test the appropriate door lock switch ground circuit 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 12

8

Test the driver door lock actuator unlock control circuit 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 13

9

Test the appropriate door lock actuator unlock control circuit 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 13

10

Test the driver door lock switch lock signal circuit 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 19

11

Is the power door locks fuse open?

Go to Step 14

Go to Step 15

12

Test the driver door lock switch lock signal circuit 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 20

13

Test the appropriate door lock actuator lock control circuit 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 21

14
  1. Replace the power door locks fuse.
  2. Disconnect all of the door lock actuators.
  3. Activate a door lock switch to the LOCK and UNLOCK positions.

Does the power door locks fuse open?

Go to Step 16

Go to Step 17

15

Test the BCM ground circuit at the center console fuse block harness connector C2 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 18

16

Test the door lock actuator unlock control, the driver door lock actuator unlock control and the door lock actuator lock control circuits 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 18

17
  1. Connect the door lock actuators, one at a time.
  2. Activate a door lock switch to the LOCK and UNLOCK positions after each door lock actuator is connected.

Does the power door locks fuse open after any of the door lock actuators is connected?

Go to Step 21

Go to Step 18

18

Inspect for poor connections at the center console fuse block harness connector C2. 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 19

19

Inspect for poor connections at the body control 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 25

Go to Step 22

20

Inspect for poor connections at the appropriate door lock 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 23

21

Inspect for poor connections at 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 25

Go to Step 24

22
  1. Perform the set-up procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
  2. Replace the body control Module. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 25

--

23

Replace the appropriate door lock switch. Refer to Front Side Door Lock Actuator Replacement or Rear Side Door Lock Actuator Replacement .

Did you complete the repair?

Go to Step 25

--

24

Replace the appropriate door lock actuator. Refer to Front Side Door Lock Actuator Replacement or Rear Side Door Lock Actuator Replacement .

Did you complete the repair?

Go to Step 25

--

25

Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2