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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1807 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> DTC C0267 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

A lower than normal brake fluid level in the master cylinder may cause the brake fluid level switch to close when the vehicle makes sharp turns or sudden stops. Low brake fluid level may be caused by a brake fluid leak or worn disc brake pads.

Thoroughly inspect connections or circuitry that may cause an intermittent malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

DTC C0267

Step Action Yes No
Schematic Reference: Hydraulic Brake Schematics 
Connector End View Reference: Hydraulic Brake Connector End Views 
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. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC C0129 or C0267 set as current?
Go to Step 3  Go to Diagnostic Aids
3 Inspect the brake fluid level in the master cylinder reservoir. Refer to Master Cylinder Reservoir Filling .
Did you find and correct the condition?
Go to Step 8  Go to Step 4 
4
  1. Disconnect the brake fluid level switch harness connector.
  2. Use the scan tool to observe the brake fluid level status.
Does the scan tool display Low?
Go to Step 6  Go to Step 5 
5 Replace the brake fluid level switch. Refer to Master Cylinder Fluid Level Sensor Replacement .
Did you complete the replacement?
Go to Step 8  -
6
  1. Turn OFF the ignition.
  2. Disconnect the body control module (BCM) harness connector.
  3. Test the brake warning indicator supply voltage circuit for a short to ground, short to voltage, or open. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
Go to Step 8  Go to Step 7 
7 Replace the BCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 8  -
8
  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