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bigfoo

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Anyone know why I am getting this? The only code that shows up is B1141 and it looks like a lot of work to dianose it.. was wondering if anyone else has had this happen and it was something simple.. Thanks

Oh and it's intermittent.. doesn't happen all the time, and only has happened when my wife was driving so far :)

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DTC B1141 Driver Pretensioner Loop Resistance High

Circuit Description

When you first turn the ignition switch to the ON position, the inflatable restraint sensing and diagnostic module (SDM) perform tests in order to diagnose critical malfunctions within itself. Next the SDM measures Ignition 1 and the deployment loop voltages in order to ensure that they are within their respective normal voltage ranges. Then the SDM proceeds with the Resistance Measurement test. During one portion of the Resistance Measurement test, the SDM does the following:

Grounds the Driver Pretensioner Low terminal 23 through an internal current sink.

Connects the Driver Pretensioner High terminal 24 to an internal constant current source. This current produces proportional voltage drops in the deployment loop.

Measures the voltage difference between Driver Pretensioner High and Driver Pretensioner Low.

Calculates the resistance of the driver pretensioner deployment loop using the measured voltage.

Conditions for Setting the DTC

The passenger and driver frontal, and pretensioner deployment loops are not open.

The passenger and driver pretensioner deployment loops are not shorted to voltage.

The passenger and driver pretensioner deployment loops are not shorted to ground.

The driver pretensioner deployment loop resistance is more than 3.1 ohms. The driver pretensioner deployment loop consists of the following components:

Driver seat belt pretensioner.

Harness wiring of CKT 2118.

Harness wiring of CKT 2119.

Connector terminal contact.

The Resistance Measurement test checks for this malfunction. This test only occurs once each ignition cycle when Ignition 1 is within the normal operating voltage range.

Action Taken When the DTC Sets

The SDM sets a Diagnostic Trouble Code (DTC).

The SDM commands the instrument cluster (IPC) to turn ON the AIR BAG warning lamp.

Conditions for Clearing the MIL/DTC

Current DTC The resistance of the driver pretensioner deployment loop is less than 3.1 ohms and the ignition switch is cycled.

History DTC

You issue a scan tool Clear DTCs command.

Once 250 malfunction free ignition cycles have occurred.

When you issue a scan tool Clear DTCs command and the malfunction is still present, the DTC will not reappear until the next ignition cycle.

Diagnostic Aids

A poor connection can cause an intermittent condition. Check the following for a poor connection:

The side air bag/pretensioner yellow 6-way harness connector terminals A and F.

The SDM terminals 23 and 24.

The wire to terminal connections in CKT 2118.

The wire to terminal connections in CKT 2119.

When measurements are requested in this table, use J 39200 Digital Multimeter with the correct terminal adapter from J 35616-A Connector Test Adapter Kit. When a check for proper connection is requested, refer to General Electrical Diagnosis Procedures in Wiring Systems. When a wire, connector or terminal repair is requested, use J 38125-B Terminal Repair Kit and refer to Wiring Repair .

Test Description

The numbers below refer to the step numbers on the diagnostic table:

This test checks for proper contact or corrosion of the side air bag/pretensioner yellow 6-way connector.

This test isolates the malfunction to one side of the side air bag/pretensioner yellow 6-way connector.

This test isolates the malfunction to the jumper harness or the pretensioner.

This test checks for proper contact or corrosion of the SDM connector.

This test determines whether the malfunction is in CKT 2118.

This test determines whether the malfunction is in CKT 2119.

No bulletins/TSBs found.

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Oh and it's intermittent.. doesn't happen all the time, and only has happened when my wife was driving so far 

bigfoo, looks like the driver seatbelt pretensioner is the culprit. Perhaps the way she wears the seatbelt or may be you are in different weight categories.

Here is what I would do:

1. Ask your wife to dtive for a while without touching the driver seatbelt. If it helps replace the pretensioner.

2. Ask the neighbours wife to drive the car while wearing the seatbelt. If it helps - swap the wives with the neighbour :lol:

Please do not take this advise personally.

The saddest thing in life is wasted talent

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The seat belt is/has like a mini airbag. Spilled cokes/coffees and mess up the connection. I would certainly look at the connector for the pre-tensioner.

post-3-1092857703.gif

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That is really cool I did not know they had that, what is the mini air bag suppose to protect you from the belt or is it to tighten the belt on impact? Mike

Early on sailors navigated by the stars at night and the North star became the symbol for finding ones way home. Once you know where the Northstar is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life.

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Its to snug the belt up. They have to be replaced after a deployment.

Classic mis spelling in the last post. Should say.....spilled cokes and coffees CAN mess up the conection.

Ouh wvell...

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Scotty......dont know about the pretensiors??? Do you know about the crash data?

GM owners really need to see this....

http//www.airbagcrash.com

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