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Air Bag Indicator Illuminates Intermittently, Side Impact Air Bag Module DTCs B0029 or B0041 Set (Replace Driver or Passenger Side Impact Air Bag Module)

Subject:Air Bag Indicator Illuminates Intermittently, Side Impact Air Bag Module DTCs B0029 or B0041 Set (Replace Driver or Passenger Side Impact Air Bag Module)

Models:2001 Chevrolet Venture
2001 Oldsmobile Silhouette
2001 Pontiac Aztek, Montana



Condition

Some owners may comment that the AIR BAG indicator illuminates intermittently in the Instrument Panel Cluster (IPC).

Cause

There may be an intermittent connection (crimping) between the wires and the terminals in either the driver or passenger side impact air bag module pigtail connector.

Correction

Caution: In order to avoid deploying the air bag when troubleshooting the SIR system, use only the equipment specified in this bulletin and the instructions given in this bulletin. Failure to use the specified equipment as instructed could cause air bag deployment, personal injury to you or someone else, or unnecessary SIR system repairs.

Caution: If any water has entered the vehicle's interior up to the level of the carpet or higher and soaks the carpet, the Sensing and Diagnostic Module (SDM) and the SDM harness connector may need to be replaced. The SDM could be activated when powered, which could cause deployment of the air bag(s) and result in personal injury. Before attempting these procedures, the SIR system must be disabled.

Important: With the ignition OFF, inspect the SDM mounting area, including the carpet. If any significant soaking or evidence of significant soaking is detected, you must perform the following steps:

  1. Determine the reason and repair if needed, the path that allowed the water to enter the vehicle.
  2. Remove all water.
  3. Repair any water damage.
  4. Replace the SDM harness connector terminals if corrosion is evident.
  5. Replace the SDM.
Failure to follow these steps could result in possible air bag deployment, personal injury, or otherwise unneeded SIR system repairs.

The following diagnostic procedure will help you find and repair the SIR system malfunction for DTCs B0029 and B0041. For best results, follow the sequence listed below.

Step

Action

Yes

No

1

  1. Turn the ignition switch OFF for 15 seconds.
  2. Turn the ignition switch to the ON position and note the AIR BAG indicator.

Does the AIR BAG indicator flash seven times?

Go to Step 2

Refer to Symptoms in the SIR sub-section in the appropriate Service Manual

2

Connect a scan tool.

Does the scan tool power up?

Go to Step 3

Refer to Scan Tool Does Not Power Up in the Data Link Communications sub-section in the appropriate Service Manual

3

Attempt to establish communication with the inflatable restraint sensing and diagnostic module (SDM) and the Instrument Panel Cluster (IPC).

Were you successful?

Go to Step 4

Refer to Scan Tool Does Not Communicate with Class 2 Device in the Data Link Communications sub-section in the appropriate Service Manual

4

  1. Request SIR diagnostic trouble codes (DTCs).
  2. Record the DTCs displayed on the scan tool onto the repair order, specifying as to current or history.

Does the scan tool display any DTCs?

Go to Step 5

System OK

5

Did the scan tool display DTC B0029 or B0041?

Go to Step 6

Exit this procedure and refer to Service Information for other DTCs

6

If DTC B0029 is displayed, replace the right front (passenger) side impact air bag module assembly.

If DTC B0041 is displayed, replace the left front (driver) side impact air bag module assembly.

--

--

Refer to the SIR sub-section of the Restraints section of the appropriate Service Manual for information on replacing the side impact air bag module assembly.

Important: If replacing a side impact air bag module assembly, it is not necessary to completely remove the seatback cover. Only remove the cover as far as necessary to access the module. As a result, it is not necessary to remove the head restraint retainers.

Parts Information

P/N

Description

Color

Usage

10312078

Module Assembly, DRIVER Side Impact Air Bag

Ebony

2001 Chevrolet Venture

2001 Oldsmobile Silhouette

2001 Pontiac Montana

2001 Pontiac Aztek

10312079

Module Assembly, DRIVER Side Impact Air Bag

Gray

2001 Oldsmobile Silhouette

10312080

Module Assembly, DRIVER Side Impact Air Bag

Neutral

2001 Oldsmobile Silhouette

10312084

Module Assembly, PASSENGER Side Impact Air Bag

Ebony

2001 Chevrolet Venture

2001 Oldsmobile Silhouette

2001 Pontiac Montana

2001 Pontiac Aztek

10312085

Module Assembly, PASSENGER Side Impact Air Bag

Gray

2001 Oldsmobile Silhouette

10312086

Module Assembly, PASSENGER Side Impact Air Bag

Neutral

2001 Oldsmobile Silhouette

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Model

Labor Time

C8855

Module, Side Impact Inflator (Passenger Side) - Replace

Montana, Silhouette, Venture

1.0 hr

Aztek

1.2 hrs

C8856

Module, Side Impact Inflator (Driver Side) - Replace

Montana, Silhouette, Venture

1.0 hr

Aztek

1.2 hrs

Add:

Diagnosis Time

All

You May Claim 0.0 to 0.3 hr Depending on Actual Time Performing Diagnosis