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HOMESERVICE MANUALSCHEVROLET2006SSR AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTHEADLIGHTSLIGHTING SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B2550TEST DESCRIPTION
2006 Chevrolet SSR Automatic

Test Description

2006 Chevrolet SSR AutomaticSECTION Test Description

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

  1. 2:  This test determines if the problem exists in the wiring or the BCM.
  2. 3:  This step inspects for poor connections before a component is replaced.
  3. 4:  After replacement of the BCM you must calibrate the new module for proper operation.
DTC B2550

Step Action Yes No
Schematic Reference: Exterior Lights Schematics 
Connector End View Reference: Lighting Systems Connector End Views  or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2  Test the following circuits as indicated. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
  • The TBC 2 battery positive supply voltage circuit and backup lamp voltage supply circuit for an open, high resistance, short to voltage or short to ground
  • The backup lamp ground circuit for an open or high resistance

Did you find and correct the condition?		 Go to Step 5  Go to Step 3 
3  Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 5  Go to Step 4 
4  Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 5  -
5
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.