Question about Chevrolet Silverado 2500HD

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I have a Chevy 2002 2500HD/LT crewcab. I installed runningboards with lights. lights need to be hooked up under door sill plate on the drivers side, auto wires are accesable but what color is auto on when door is open? What color is the return ground?

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  • harry_b_stev Sep 28, 2010

    The running boards have only two wires to hook-up to the truck, one is black (ground) and the other is red (positive). I assume the black can go to any ground point on the truck and the red is supposed to go to the wire that feeds the overhead light in the cab which comes on when the doors are open. what color is the positive that feeds the overhead light in the truck? I guess that would have been the better question.



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I believe red and white. Best bet is to take a look at the button on the door that turns lights on and off when door is open and closed. The wires should be the same color on all the switches. Red and white and yellow are all positive wires, white and blue are usually common wires and brown, black, and green are usually ground wires. You can use an ohmmeter and find out which ones are which.

Posted on Sep 28, 2010

  • Nate Stansfield
    Nate Stansfield Sep 28, 2010

    Yes Red is positive battery power, black is ground that can connect to any metal surface, then you should have one more wire from the light. The actual lights are seperated from the switches by a light delay module in the vehicle. You would have to check the door switch or the actual light wiring to find out what colored wire to tap in to..



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#05-09-41-001B: Supplemental Inflatable Restraint (SIR) Light ON, Diagnostic Trouble Codes (Inspect/Replace IP Harness to Inflatable Restraint Module (Air Bag) Yellow 4-Way Connector C221 and/or C222) - (Jun 2, 2008)

Subject:Supplemental Inflatable Restraint (SIR) Light ON, Diagnostic Trouble Codes (DTC) B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 (Inspect and/or Replace IP Harness to Inflatable Restraint Module (Air Bag) Yellow 4-Way Connector C221 and/or C222)
Models:2003-2006 Cadillac Escalade Models
2003-2006 Chevrolet Avalanche, Suburban, Tahoe
2003-2007 Chevrolet Silverado (Classic Only)
2003-2006 GMC Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2003-2007 GMC Sierra (Classic Only)

This bulletin is being revised to add the 2007 model year for pickups and change a part number. Please discard Corporate Bulletin Number 05-09-41-001A (Section 09 -- Restraints).

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Some customers may comment that the Service Supplemental Inflatable Restraint Light is on.

Diagnosis with a scan tool may indicate a DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044.

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The most likely cause of any one of the following DTCs: B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 is improper connection/high resistance in the IP harness to inflatable restraint module connector C221 and/or C222.

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Diagnostic Information

DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 will set when one of the following conditions occur:
• The SDM detects the air bag module deployment loop resistance is greater than 4.8 ohms for 500 milliseconds.
• The SDM detects that the voltage at the air bag module high control is less than 2.4 volts and deployment loop resistance is 6 ohms or greater for 500 milliseconds.
• For additional diagnostic information, refer to DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 in the appropriate SI Document.
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Don't Do This

Test for proper connection/high resistance at connector C221 and/or C222.

DO NOT replace SIR system components prior to testing for proper connection/high resistance in C221 and/or for DTCs B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044.

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  • <LI type=1>Remove the appropriate side door sill plate. <LI type=1>Remove the appropriate side hinge pillar panel. <LI type=1>Locate the IP harness to inflatable restraint module yellow 4-way connector C221 or C222. <LI type=1>Inspect the IP harness to inflatable restraint module connector C221 or C222 for proper connection. <LI type=1>Disconnect and reconnect the IP harness to inflatable restraint module connector C221 or C222 THREE times. <LI type=1>Clear the DTC and road test the vehicle. • If DTCs B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 DOES NOT reset, no additional repairs are necessary. Continue with step 10.
    • If DTCs B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 DOES reset, the most likely cause is high resistance in the IP harness to inflatable restraint module connector C221 or C222. Continue with the next step.
    <LI type=1>Replace the appropriate connector C221 and/or C222, P/N's 15306186 and 88987998. Refer to SIR/SRS Wiring Repairs (SI Document ID #325229). <LI type=1>Road test the vehicle and confirm that the repair is complete. <LI type=1>Install the driver's side hinge pillar panel.
  • Install the driver's side door sill plate.
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Parts Information
Part Number




Connector (4-way Female, w/Leads)



Connector (4-way Male, w/Leads)

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