GM Service Manual Online
For 1990-2009 cars only

RAP Inoperative-RH Door

Step

Action

Value(s)

Yes

No

1

Has the RAP System Check been performed?

--

Go to Step 2

Go to Retained Accessory Power (RAP) System Check

2

    • Install a scan tool.
    • Display the Diagnostic Circuit Check/Class 2 Message Monitor.

Are the BCM, and RDCM listed as active?

--

Go to Step 3

Go to Diagnostic System Check - Data Link Communications

3

Using the scan tool, select the RDCM DTC display.

Are any DTCs displayed?

--

Go to Diagnostic System Check - Power Door Systems

Go to Step 4

4

  1. Using the scan tool, select the RDCM input display.
  2. Observe the passenger door ajar switch status.
  3. Open and close the passenger door.

Does the scan tool indicate the switch as open and closed?

--

Go to Step 12

Go to Step 5

5

Does the scan tool indicate the passenger door ajar switch always open?

--

Go to Step 6

Go to Step 8

6

  1. Disconnect the BCM connector C2.
  2. Disconnect the RDCM connector C1.
  3. Connect a DMM from the RDCM connector C1 terminal 10 to ground.
  4. Passenger door closed, measure the resistance to ground of circuit 746.

Is the resistance within specified values?

Infinite

Go to Step 12

Go to Step 7

7

Inspect and repair the short to ground in circuit 746. If ok replace the passenger door latch. Refer to Door Lock Replacement .

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--

8

  1. Disconnect the RDCM connector C1.
  2. Connect a DMM from connector C1 terminal 10 to ground.
  3. Passenger door open, measure the resistance to ground of circuit 746.

Is the resistance within specified values?

0-2 ohms

Go to Step 12

Go to Step 9

9

  1. Disconnect the door latch connector C2.
  2. Connect a DMM from connector C2 terminal A to ground.
  3. Measure the resistance to ground of circuit 150.

Is the resistance within specified values?

0-2 ohms

Go to Step 10

Go to Step 11

10

Inspect and repair the open or high resistance in circuit 746. If ok replace the passenger door latch. Refer to Door Lock Replacement .

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--

11

Repair the open or high resistance in circuit 150.

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--

12

Replace the RDCM. Refer to Door Control Module Replacement .

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--