GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Corvette 🢒 Body and Accessories 🢒 Doors 🢒 Retained Accessory Power Inoperative - Left Side Front Door

RAP Inoperative-LH 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 LDCM listed as active?

--

Go to Step 3

Go to Diagnostic System Check - Data Link Communications

3

Using the scan tool, select the LDCM 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 LDCM input display.
  2. Observe the driver door ajar switch status.
  3. Open and close the driver 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 driver door ajar switch always open?

--

Go to Step 6

Go to Step 8

6
  1. Disconnect the BCM connector C2.
  2. Disconnect the LDCM connector C1.
  3. Connect a DMM from the LDCM connector C1 terminal 10 to ground.
  4. Driver door closed, measure the resistance to ground of circuit 745.

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 745. If ok replace the driver door latch. Refer to Door Lock Replacement .

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--

8
  1. Disconnect the LDCM connector C1.
  2. Connect a DMM from connector C1 terminal 10 to ground.
  3. Driver door open, measure the resistance to ground of circuit 745.

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 D 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 745. If ok replace the driver 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 LDCM. Refer to Door Control Module Replacement .

Is the repair complete?

--

Go to Retained Accessory Power (RAP) System Check

--