GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2000 🢒 Intrigue 🢒 Body and Accessories 🢒 Doors 🢒 Power Door Locks - Lock Inoperative Unlock Operates

Power Door Locks - Lock Inoperative Unlock Operates Both Switches

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check for the door systems?

--

Go to Step 2

Go to Diagnostic System Check - Door Systems

2
  1. Turn the ignition switch off.
  2. Disconnect the Body Control Module (BCM) connector C1.
  3. Using a DMM, measure the resistance between the BCM harness connector C1 terminal D12 and ground.

Is the resistance within the specified range?

∞

Go to Step 3

Go to Step 4

3
  1. Disconnect the LF or RF door lock switch.
  2. Using a DMM, measure the resistance between the BCM harness connector C1 terminal D12 and either LF or RF door lock switch harness connector terminal C (LF) or terminal B (RH).

Is the resistance within the specified range?

Less than 2ohms

Go to Step 5

Go to Step 6

4

Repair short to ground in circuit 780. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 7

--

5
  1. Replace the BCM. Refer to Body Control Module Replacement in Body Control System.
  2. After BCM replacement, perform the Setup New BCM procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Did you complete the repair?

--

Go to Step 7

--

6

Repair poor connection or open in circuit 780. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Diagnostic System Check - Door Systems

Power Door Locks - Lock Inoperative Unlock Operates One Switch

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check for the door systems?

--

Go to Step 2

Go to Diagnostic System Check - Door Systems

2
  1. Turn the ignition switch off.
  2. Disconnect the inoperative door lock switch.
  3. Using a DMM, connect between door lock switch terminals (switch side):
    4. • Driver's side door lock switch: C and F.
    • Passenger side door lock switch: B and F.
  4. While measuring the resistance using DMM, press lock on the door lock switch.

Is the resistance within the specified range?

Lock Position:

Less than 2ohms

Released:

∞

Go to Step 3

Go to Step 4

3

Repair poor connection or open in circuit 780. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 5

--

4

Replace the door lock switch. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement .

Did you complete the repair?

--

Go to Step 5

--

5

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Diagnostic System Check - Door Systems