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HOMESERVICE MANUALSPONTIAC2004MONTANA VAN PASSENGERREPAIR AND DIAGNOSISBRAKESANTILOCK BRAKE SYSTEM AND TRACTION CONTROL SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESABS INDICATOR INOPERATIVETEST DESCRIPTION
2004 Pontiac Montana Van Passenger

Test Description

2004 Pontiac Montana Van PassengerSECTION Test Description

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

  1. 3:  This step tests if the IPC is able to turn ON the ABS indicator.
ABS Indicator Inoperative

Step Action Yes No
Schematic Reference:  ABS Schematics  
Connector End View Reference:  ABS Connector End Views   or  Instrument Panel, Gages, and Console Connector End Views  in Instrument Panel, Gages, and Console
1 Did you perform the ABS Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - ABS 
2
  1. Turn OFF the ignition for 5 seconds.
  2. Turn ON the ignition while observing the ABS indicator.
Does the ABS indicator illuminate for 2 seconds and then turn OFF?		 Go to Diagnostic Aids Go to Step 3 
3 
  1. Install a scan tool.
  2. Select the Instrument Panel Cluster Special Functions menu on the scan tool.
  3. Command the IPC Lamps ON.
Does the ABS indicator turn ON?		 Go to Step 5  Go to Step 4 
4 Replace the instrument panel cluster. Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages, and Console.
Did you complete the replacement?		 Go to Step 6  -
5 Replace the EBCM. Refer to Electronic Brake Control Module Replacement .
Did you complete the replacement?		 Go to Step 6  -
6
  1. Turn OFF the ignition for 5 seconds.
  2. Turn ON the ignition while observing the ABS indicator.
Does the ABS indicator illuminate for 2 seconds and then turn OFF?		 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.