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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 925 (ANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0220-C0229 (W/O JL4)TEST DESCRIPTION
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Test Description

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Test Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, 2007 Chevrolet RV Cutaway, and 2007 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 2:  Performing solenoid tests determines if there is a mechanical malfunction inside the brake pressure modulator valve (BPMV).
DTC C0220-C0229 (W/O JL4)

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 
  1. Use a scan tool in order to clear the DTCs.
  2. Use the scan tool in order to perform the necessary solenoid tests. Refer to Scan Tool Output Controls (W/JL4)  or Scan Tool Output Controls (W/O JL4) .
Do the solenoid tests show the system to be functioning normally?		 Go to Diagnostic Aids Go to Step 3 
3 Replace the brake pressure modulator valve (BPMV). Refer to Control Module References .
Did you complete the replacement?		 Go to Step 4  -
4 Use the scan tool in order to perform the necessary solenoid tests.
Do the solenoid tests show the system to be functioning normally?		 System OK Go to Step 3 
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.