Code b0100 - 2005 GMC Sierra

DTC C0283 (W/O JL4)
The traction control switch is a momentary-contact, normally-open switch that can be used to disable the traction control system (TCS). Each time the traction control switch is pressed, the TCS enabled/disabled status changes. When TCS is disabled, the electronic brake control module (EBCM) illuminates the traction off indicator by opening the service traction control signal circuit.

DTC C0283 (W/JL4)
The traction control switch is a momentary-contact, normally-open switch that can be used to disable the engine torque management function of the TCS. On two wheel drive or all wheel drive vehicles, the traction control switch is directly monitored by the EBCM. On four wheel drive vehicles equipped with selectable 4 LO, the traction contol switch is monitored by the transfer case shift control module (TCSCM), which sends the traction control switch status information to the EBCM on the serial data link. Each time the traction control switch is pressed, the VSES and TCS enabled/disabled status changes. When TCS is disabled, the EBCM sends serial data messages to the IPC to turn ON the traction off indicator and display the stability system disabled message.

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DTC C0660

The exhaust solenoid valve is switched on and off via the suspension control module. The suspension control module provides a switched path to ground whenever exhaust activity is required and during a compressor "head-relief" sequence which occurs at compressor start-up if system pressure is lower than 68.95 kPa (10 psi). The suspension control module continually monitors the exhaust solenoid valve circuitry to determine if the voltage level agrees with the commanded state.

DTC B0100, B0101, B0102, B0103, B0104, or B0105

The inflatable restraint front end sensor utilizes a unidirectional 2-wire circuit. The front end sensor modulates current on the interface to send ID, State of Health, and deployment commands to the inflatable restraint sensing and diagnostic module (SDM). The SDM serves as a power source and a ground for the front end sensor. When the ignition is turned on and input power from the SDM is first detected, the front end sensor responds by performing internal diagnostics and sending an ID to the SDM. The SDM considers the ID to be valid if the response time is less than 5 seconds. The front end sensor continually communicates status messages to the SDM, which determines if a fault is present in the front end sensor circuit. When a fault is detected, the SDM resets the front end sensor twice by removing and reapplying power. If the fault is still present, the SDM will set a diagnostic trouble code (DTC).

What code ? Plugging in a scan tool to check codes is how it's done , not by the light blinking an then staying on . Your best bet , take it to a qualified repair shop.

AIR BAG Indicator
The AIR BAG indicator, located in the IPC is used to notify the driver of SIR system malfunctions and to verify that the SDM is communicating with the IPC. When the ignition is turned ON, the SDM and the IPC are supplied with ignition 1 voltage. The IPC responds by flashing the AIR BAG indicator seven times. While the IPC is flashing the AIR BAG indicator, the SDM conducts tests on all SIR system components and circuits. If no malfunctions are detected, the SDM will command the IPC to turn the AIR BAG indicator OFF via Class 2 serial data. The SDM provides continuous monitoring of the inflator module circuits by conducting a sequence of checks. If a malfunction is detected, the SDM will store a DTC and command the IPC to turn the AIR BAG indicator ON via Class 2 serial data. The presence of a SIR system malfunction could result in non-deployment of the inflator modules in the event of a collision, or deployment of the inflator modules without the event of a collision. The AIR BAG indicator will remain ON until the malfunction has been repaired.


Code's on a factory or professional scan tool look like this
DTC B0012, B0013, B0014, B0016, B0017, or B0018
DTC B0022, B0024, B0026, B0042, B0043, or B0044
DTC B0028, B0029, or B0030
DTC B0040, B0041, or B0045
DTC B0051
DTC B0053
DTC B0057, B0058, or B0059
DTC B0064, B0065, or B0066
DTC B0077, B0078, B0079, B0080, B0081, or B0082
DTC B0100, B0101, B0102, B0103, B0104, or B0105
DTC B1001


Doesn't do the flashing light code thing .

B0100 refers to your air bag system and the others refer to your air con and blowers.

Mel, This may not be a problem for you to take on, pretty sure it has to do with the SRS senors which could also cause B0140 code traction control possibly shut off by fault in SRS system. Take in to a good Technician for diagnoses. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
HHR OBD2 codes B0100 B0140 airbag and speed sensor Chevy HHR Network

What does error codes B0100 and B0140 indicate wrong on 2011 Buick...

2011 Impala LS ABS Stabilitrak Traction Control Problems Chevrolet Forum...

B0100:
Perform trouble checking for the following: the front end sensor, the SDM module, the SDM wiring harness connector. Damage to the following parts needs replacement or repair. For the DTC B0100, detach the front end sensor1 connector and also detach the SDM connector. Perform trouble checking of the signal and voltage circuits between the SDM and the front end sensor for a short to voltage and for a short to ground. Reconnect all the SIR components and if the DTC B0100 is present then the front end sensor1 has to be changed.
B0104
Perform trouble checking for the following: the front end sensor, the SDM module, the SDM wiring harness connector. Damage to the following parts needs replacement or repair. For the DTC B0104, detach the front end sensor1 connector and also detach the SDM connector. Perform trouble checking of the signal and voltage circuits between the SDM and the front end sensor for a short to voltage and for a short to ground. Reconnect all the SIR components and if the DTC B0104 is present then the front end sensor2/right has to be changed.
i could not find anything on the B0140 code so i included the B0104 incase of typo

Hi there:
DTC B0100 - Electronic Front End Sensor 1 Performance

The following can cause an intermittent condition:

• A short between the front end sensor signal and low reference circuits
• High or low resistance in the front end sensor signal and low reference circuits
• Inspect the front end sensor signal and low reference circuits carefully for cutting and/or chafing
• Verify that the correct front end sensor is installed in the vehicle

Hope helps.

B0100 is an airbag sensor problem front left sensor -but your vehicle should have one which should be located behind bumper center by bottom of radiator support

For OBD code problems check the list of help links below. Click the link below to go through its procedure.--------------Diagnostic Code P2195?http://schematicsdiagram.blogspot.in/2012/02/diagnostic-code-p2195-on-toyota-avalon.html--------------Diagnostic code P1330?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p1330-on-kia-2wd.html------------Diagnostic code P0700, P1330, P1121?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p0700-p1330-p1121-on.html-------------shows error code P1330?http://technoanswers.blogspot.in/2012/02/2003-kia-sorento-shows-error-code-p1330.html--------OBD code P1330?http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html------------OBD code P01300?http://technoanswers.blogspot.in/2012/02/obd-code-p01300-on-toyota-rav4.html--------------OBD code P0768?http://repairhelpcenter.blogspot.com/2012/01/obd-code-p0768.html------------Evaporative Emissions System codes details?http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html--------------- Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

----------------

Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

--------------
ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

------------
Diagnostic code P0010?http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html-------------Diagnostic Code P1396?

http://howtobyme.blogspot.com/2011/11/diagnostic-code-p1396.html

--------------
Code P0452?

http://howtobyme.blogspot.com/2011/11/code-p0452.html

-------------

OBD code P0172 on Buick?

http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html

-------------
DTC Code P0321?

http://howtobyme.blogspot.com/2011/11/dtc-code-p0321-on-buick-park-avenue.html

------------------

Error Code P0471?

http://howtobyme.blogspot.com/2011/11/error-code-p0471-on-2007-dodge-ram-3500.html

-------------
P0304 Error code?

http://howtobyme.blogspot.com/2011/11/p0304-error-code-on-dodge-neon.html

-----------------

OBDII scan is receiving NO BUS CODE?

http://howtobyme.blogspot.com/2011/11/obdii-scan-is-receiving-no-bus-code.html

-----------
How to Clear OBD error Codes?

http://repairhelpcenter.blogspot.com/2011/11/how-to-clear-obd-error-codes-on-acura.html

----------------
Diagnosis and Testing Car Components?

http://vwrepairhelp.blogspot.com/2011/11/diagnosis-and-testing-car-components.html

--------------
Diagnostic Trouble Codes list?

Part 1.

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura_18.html

--------------
Diagnostic Trouble Codes list?

Part 2.------

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura.html

------------
OBD Code is cleared but check engine light will not RESET?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html

--------------
Diagnostic Code 43 and 71?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-43-and-71-on-1991.html

------------------
Code P0132?

http://schematicsdiagram.blogspot.com/2011/12/code-p0132-on-acura-tl.html

-------------
P0031 code?

http://schematicsdiagram.blogspot.com/2011/12/p0031-code-on-dodge-dakota.html

--------------
How to get diagnostic Code without OBD Scanner on Pre 1995 cars?

http://schematicsdiagram.blogspot.com/2011/12/how-to-get-diagnostic-code-without-obd.html

------------
OBD-II Trouble Code P0300?

http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html

-------------
Getting diagnostic code P0016?

http://schematicsdiagram.blogspot.com/2011/12/getting-diagnostic-code-p0016.html

--------------
How to Read Codes from Check Engine Light?

http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

-------------
Diagnostic Code P0540 continues to return and the MIL light is on?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0540-continue-to.html

-----------
DTC Trouble Code P0401?

http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html

-----------------
Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

-------------
Diagnostic code P0463?

http://technoanswers.blogspot.com/2012/01/diagnostic-code-p0463-on-ford-f250.html

-------------
Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

------------
Diagnostic error code P0121,P0505,P1000,P2101,P2104, P2110,P2135,P2106?

http://technoanswers.blogspot.in/2012/01/diagnostic-error-code.html

--------------
P0174, P0037 and P2197?

http://technoanswers.blogspot.in/2012/02/p0174-p0037-and-p2197-on-toyota-rav4.html

-----------
P0352 Obd code?

http://technoanswers.blogspot.in/2012/02/p0352-obd-code-on-toyota-rav4.html

-------------
Error code p0402?

http://technoanswers.blogspot.in/2012/02/error-code-p0402-on-ford-escape.html

---------
Obd Code P0763?

http://technoanswers.blogspot.in/2012/02/obd-code-p0763-on-lexus.html

-------
OBD code P0301, P0430 and P0174?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0301p0430-and-p0174.html

---------
OBD code P0500?http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0500-on-lexus-rx-300.html
-----------This will help.Thanks.

For OBD code problems check the list of help links below. Click the link below to go through its procedure.

--------------
Diagnostic Code P2195? http://schematicsdiagram.blogspot.in/2012/02/diagnostic-code-p2195-on-toyota-avalon.html

--------------
Diagnostic code P1330? http://technoanswers.blogspot.in/2012/02/diagnostic-code-p1330-on-kia-2wd.html

------------
Diagnostic code P0700, P1330, P1121? http://technoanswers.blogspot.in/2012/02/diagnostic-code-p0700-p1330-p1121-on.html

-------------
shows error code P1330? http://technoanswers.blogspot.in/2012/02/2003-kia-sorento-shows-error-code-p1330.html

--------
OBD code P1330? http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html

------------
OBD code P01300? http://technoanswers.blogspot.in/2012/02/obd-code-p01300-on-toyota-rav4.html

--------------
OBD code P0768? http://repairhelpcenter.blogspot.com/2012/01/obd-code-p0768.html

------------
Evaporative Emissions System codes details? http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html --------------- Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

----------------

Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

--------------
ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

------------
Diagnostic code P0010? http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html

-------------
Diagnostic Code P1396?

http://howtobyme.blogspot.com/2011/11/diagnostic-code-p1396.html

--------------
Code P0452?

http://howtobyme.blogspot.com/2011/11/code-p0452.html

-------------

OBD code P0172 on Buick?

http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html

-------------
DTC Code P0321?

http://howtobyme.blogspot.com/2011/11/dtc-code-p0321-on-buick-park-avenue.html

------------------

Error Code P0471?

http://howtobyme.blogspot.com/2011/11/error-code-p0471-on-2007-dodge-ram-3500.html

-------------
P0304 Error code?

http://howtobyme.blogspot.com/2011/11/p0304-error-code-on-dodge-neon.html

-----------------

OBDII scan is receiving NO BUS CODE?

http://howtobyme.blogspot.com/2011/11/obdii-scan-is-receiving-no-bus-code.html

-----------
How to Clear OBD error Codes?

http://repairhelpcenter.blogspot.com/2011/11/how-to-clear-obd-error-codes-on-acura.html

----------------
Diagnosis and Testing Car Components?

http://vwrepairhelp.blogspot.com/2011/11/diagnosis-and-testing-car-components.html

--------------
Diagnostic Trouble Codes list?

Part 1.

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura_18.html

--------------
Diagnostic Trouble Codes list?

Part 2.------

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura.html

------------
OBD Code is cleared but check engine light will not RESET?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html

--------------
Diagnostic Code 43 and 71?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-43-and-71-on-1991.html

------------------
Code P0132?

http://schematicsdiagram.blogspot.com/2011/12/code-p0132-on-acura-tl.html

-------------
P0031 code?

http://schematicsdiagram.blogspot.com/2011/12/p0031-code-on-dodge-dakota.html

--------------
How to get diagnostic Code without OBD Scanner on Pre 1995 cars?

http://schematicsdiagram.blogspot.com/2011/12/how-to-get-diagnostic-code-without-obd.html

------------
OBD-II Trouble Code P0300?

http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html

-------------
Getting diagnostic code P0016?

http://schematicsdiagram.blogspot.com/2011/12/getting-diagnostic-code-p0016.html

--------------
How to Read Codes from Check Engine Light?

http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

-------------
Diagnostic Code P0540 continues to return and the MIL light is on?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0540-continue-to.html

-----------
DTC Trouble Code P0401?

http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html

-----------------
Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

-------------
Diagnostic code P0463?

http://technoanswers.blogspot.com/2012/01/diagnostic-code-p0463-on-ford-f250.html

-------------
Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

------------
Diagnostic error code P0121,P0505,P1000,P2101,P2104, P2110,P2135,P2106?

http://technoanswers.blogspot.in/2012/01/diagnostic-error-code.html

--------------
P0174, P0037 and P2197?

http://technoanswers.blogspot.in/2012/02/p0174-p0037-and-p2197-on-toyota-rav4.html

-----------
P0352 Obd code?

http://technoanswers.blogspot.in/2012/02/p0352-obd-code-on-toyota-rav4.html

-------------
Error code p0402?

http://technoanswers.blogspot.in/2012/02/error-code-p0402-on-ford-escape.html

---------
Obd Code P0763?

http://technoanswers.blogspot.in/2012/02/obd-code-p0763-on-lexus.html

-------
OBD code P0301, P0430 and P0174?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0301p0430-and-p0174.html

---------
OBD code P0500?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0500-on-lexus-rx-300.html

-----------

This will help.

Thanks.

------------------------------------

first, code b0100 is a fault in the restraint system. front end sensor, restraint sensing diagnostic module or communication between the 2 are suspect problems po420 is an efficiency problem with catalytic converter. most likely would need new converter, but exhaust leaks and oxygen sensor malfuctions can also set code. if this vehicle is under 80,000 miles and does need converter, dealer should repair for free under warranty. that is federally mandated.