GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Bravada 🢒 Body and Accessories 🢒 Body Rear End 🢒 Gate Ajar Indicator Inoperative

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

--

Go to Step 2

Go to Instrument Cluster System Check

2

Did you perform the BCM Diagnostic System Check?

--

Go to Step 3

Go to Diagnostic System Check - Body Control System in Body Control System

3

Did you perform the Lift Window Release System Check?

--

Go to Step 4

Go to Liftgate Window Release System Check in Body Rear End

4
  1. Using the scan tool, select Instrument Panel Cluster.
  2. Select Data Display.
  3. Select OUTPUTS.

Does the REAR GATE/DOOR output indicate CLOSED with the endgate/liftgate open?

--

Go to Step 5

Go to Step 12

5
  1. Using the scan tool, select Body Control Module.
  2. Select Data Display.
  3. Select Data List.
  4. Select INPUT 1.

Does the REAR GATE/DOOR output indicate CLOSED with the endgate/liftgate open?

--

Go to Step 6

Go to Instrument Cluster System Check or Diagnostic System Check - Body Control System in Body Control System

6
  1. Turn the ignition switch to the RUN position.
  2. Ensure that the gate is open.
  3. Connect a DMM to ground.
  4. Backprobe the BCM connector C2 (BLU) terminal B10 (CKT 1303).

Is battery voltage present?

--

Go to Step 7

Go to Step 13

7
  1. Connect a fused jumper lead to ground.
  2. Backprobe the BCM connector C2 (BLU) terminal B10 (CKT 1303).

Is the GATE AJAR indicator on the IP illuminated?

--

Go to Step 8

Go to Step 13

8
  1. Access the gate ajar switch.
  2. Disconnect the gate ajar switch.
  3. Turn the ignition switch to the RUN position.
  4. Using the J 35616-A , jumper the gate ajar switch connector terminal B to terminal D.

Is the GATE AJAR indicator on the IP illuminated?

--

Go to Step 14

Go to Step 9

9

Using the J 35616-A , jumper the gate ajar switch connector terminal B to ground.

Is the GATE AJAR indicator on the IP illuminated?

--

Go to Step 10

Go to Step 11

10

Locate and repair the open or the high resistance in CKT 1350 between the gate ajar switch terminal D and G420 or G450. Refer to Wiring Repairs

Is the repair complete?

--

Go to Instrument Cluster System Check

--

11

Locate and repair the open or the high resistance in CKT 1303 between the gate ajar switch terminal B and BCM connector C2 terminal B10.

Is the repair complete?

--

Go to Instrument Cluster System Check

--

12

Replace the instrument cluster. Refer to Instrument Cluster Replacement

Is the repair complete?

--

Go to Instrument Cluster System Check

--

13
  1. Replace the BCM. Refer to Body Control Module Replacement
  2. Reconnect all of the disconnected components.
  3. Program the BCM with the proper calibrations.
  4. Perform the Passlock™ Learn Procedure using the scan tool.
  5. Using the scan tool, clear all of the DTCs.

Is the repair complete?

--

Go to Instrument Cluster System Check

--

14

Replace the gate ajar switch.

Is the repair complete?

--

Go to Instrument Cluster System Check

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