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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1540 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> Brake Warning Indicator Always On

Brake Warning Indicator Always On

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Brake Warning Indicator Always On

Step Action Yes No
Schematic Reference:  Brake Warning System Schematics  
Connector End View Reference:  Hydraulic Brakes Connector End Views   or  Instrument Panel, Gages, and Console Connector End Views 
1 Did you perform the Hydraulic Brake Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Hydraulic Brakes 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Release the park brake.
  3. With a scan tool, observe the Park Brake Switch parameter in the Instrument Panel Cluster data list.
Does the scan tool indicate that the Park Brake Switch parameter is Off?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Disconnect the park brake switch.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the Park Brake Switch parameter.
Does the scan tool indicate that the Park Brake Switch parameter is Off?
Go to Step 5  Go to Step 4 
4 Test the signal circuit of the park brake switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 6 
5 Inspect for poor connections at the harness connector of the park brake switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 7 
6 Inspect for poor connections at the harness connector of the instrument cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
7 Replace the park brake switch. Refer to Park Brake Warning Lamp Switch Replacement in Park Brake.
Did you complete the repair?
Go to Step 9  -
8 Replace the instrument cluster (IPC). Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gauges and Console.
Did you complete the repair?
Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2