SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC C0279TEST DESCRIPTION
2001 Chevrolet Suburban C1500

Test Description

2001 Chevrolet Suburban C1500SECTION Test Description

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

  1. 3 

    The PCM must have the correct part number for the specified application.

DTC C0279

Step Action Yes No
1 Did you perform the ABS Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - ABS 
2
  1. Use a scan tool in order to clear the DTCs.
  2. Turn OFF the ignition for 5 seconds.
  3. Turn ON the ignition and wait 10 seconds.
Does the DTC set?		 Go to Step 3  Go to Diagnostics Aids
3  Verify the correct PCM is installed in the vehicle.
Does the vehicle have the correct PCM?		 Go to Step 4  Go to Step 6 
4 Use the scan tool in order to read the Calibration IDs of the PCM.
Are the PCM Calibration IDs correct?		 Go to Diagnostics Aids Go to Step 5 
5 Perform the set up procedure for the PCM. Refer to Powertrain Control Module Programming (Offboard) , Powertrain Control Module Programming (Onboard) in Engine Controls - 4.8L, 5.3L, and 6.0L.
Did you complete the action?		 Go to Step 7  -
6
IMPORTANT:

Perform the set up procedure for the PCM.

Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 4.8L, 5.3L, and 6.0L.Did you complete the replacement?		 Go to Step 7  -
7
  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 3  System OK
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.