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Test Description

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  Tests for DTCs set in the Body Control Module BCM Lighting Systems for a malfunctioning brake pedal position sensor BPPS.
  2. 3:  Tests for specified voltage on the brake pressure signal circuit.
  3. 4:  Checks to see if voltage was below specified voltage.
  4. 5:  Checks to see if voltage was above specified voltage.
  5. 6:  Checks to see if voltage was above specified voltage of 5 volt reference.
  6. 7:  Checks to see if 5 volt reference from EBCM is 5 volts.
  7. 8:  Checks to see if resistance of ground circuit is less than 5 ohms.
  8. 9:  Tests for short to voltage in the 5 volt reference circuit.
  9. 10:  Tests for a short to ground, a high resistance or an open in the 5 volt reference circuit.
  10. 11:  Tests for a short to voltage in the brake pressure sensor signal circuit.
  11. 12:  Tests for a high resistance or an open in the ground circuit.
  12. 13:  Checks to brake pressure sensor connector for poor connections.
  13. 14:  Checks to EBCM connector for poor connections.
DTC C0132

Step Action Value(s) Yes No
Schematic Reference:  ABS Schematics  
Connector End View Reference: ABS Connector End Views 
1 Did you perform the ABS Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - ABS 
2  After performing the ABS Diagnostic System Check, retrieve DTCs set for the brake pedal position sensor BPPS in Lighting Systems.
Did the BPPS set DTCs?		 - Go to Diagnostic Trouble Code (DTC) List in Lighting Systems Go to Step 3 
3 
  1. Turn OFF the ignition.
  2. Disconnect the EBCM.
  3. Install the J 39700  Universal Pinout Box with the. See Special Tools and Equipment . J 39700-530 Cable Adapter between the EBCM and the EBCM harness connector.
  4. Turn ON the ignition, with the engine OFF.
  5. Using the DMM, measure the voltage between pin 17 and pin 15 of the J 39700  . See Special Tools and Equipment .
Is the voltage within the specified value?		 0.25-4.75 V Go to Diagnostic Aids Go to Step 4 
4 
  1. Turn OFF the ignition.
  2. Disconnect the brake pressure sensor.
  3. Turn ON the ignition with the engine OFF.
  4. Using the DMM, measure the voltage between pin 17 and pin 15 of the J 39700  . See Special Tools and Equipment .
Is the voltage less than the specified value?		 4.75 V Go to Step 5  Go to Step 11 
5 
  1. Turn OFF the ignition.
  2. Connect a 3 amp fused jumper wire between the 5 volt reference circuit of the brake pressure sensor and the signal circuit of the brake pressure sensor.
  3. Turn ON the ignition, with the engine OFF.
  4. Using the DMM, measure the voltage between pin 17 and pin 15 of the J 39700  . See Special Tools and Equipment .
Is the voltage greater than the specified value?		 0.25 V Go to Step 6  Go to Step 9 
6 
  1. Disconnect the fused jumper wire.
  2. Measure the voltage between the 5 volt reference circuit of the brake pressure sensor and the ground circuit of the brake pressure sensor.
Does the voltage measure less than the specified value?		 5 V Go to Step 7  Go to Step 8 
7 
  1. Turn OFF the ignition.
  2. Disconnect the negative battery cable.
  3. Measure the resistance from the ground circuit of the brake pressure sensor to a good ground.
Does the resistance measure less than the specified value?		 5 Ω Go to Step 13  Go to Step 12 
8  Test the 5 volt reference circuit of the brake pressure sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 17  Go to Step 14 
9  Test the 5 volt reference circuit of the brake pressure sensor for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 17  Go to Step 10 
10  Test the signal circuit of the brake pressure sensor for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 17  Go to Step 14 
11  Test the signal circuit of the brake pressure sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 17  Go to Step 14 
12 
  1. Disconnect the EBCM.
  2. Test the ground circuit of the brake pressure sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 17  Go to Step 14 
13  Inspect for poor connections at the harness connector of the brake pressure sensor. 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 17  Go to Step 15 
14  Inspect for poor connections at the harness connector of the EBCM. 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 17  Go to Step 16 
15 Replace the brake pressure sensor Brake Fluid Pressure Sensor Replacement .
Did you complete the replacement?		 - Go to Step 17  -
16 Important  Before replacing the EBCM, inspect the brake pedal position sensor for proper adjustment, Refer to Brake Pedal Position Sensor Calibration Description and Operation in Lighting System.
Replace the EBCM. Refer to Electronic Brake Control Module Replacement .
Did you complete the replacement?		 - Go to Step 17  -
17
  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 2  System OK
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