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Home >> Jeep >> 2016 >> Compass Sport SE, 2.0L Eng VIN A >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Totally Integrated Power Module (TIPM) - DTCS B222C To U1108 >> DTC Troubleshooting >> C1008-Brake Fluid Level Circuit High >> Diagnostic Test

Diagnostic Test

  1. BRAKE FLUID LEVEL SWITCH SIGNAL VOLTAGE ABOVE 4.9 VOLTS 
    NOTE:

    This DTC must be active for the results of this test to be valid.

    1. Turn the ignition on.
    2. With the scan tool, read Fuel Level Switch Signal voltage.

      Is the voltage above 4.9 volts?

      Yes 

      • Go To  2

      No 

  2. (B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT FOR SHORT TO BATTERY VOLTAGE 
    Fig 1: Checking Brake Fluid Level Switch Signal Circuit
    GC0100265Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Brake Fluid Level Switch harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (B20) Brake Fluid Level signal circuit in the Brake Fluid Level Switch harness connector to ground.

      Is the voltage above 5.2 volts?

      Yes 

      • Repair the (B20) Brake Fluid Level signal circuit for a short to voltage.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .

      No 

      • Go To  3
  3. BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE 
    Fig 2: Checking Brake Fluid Level Signal Circuit
    GC0100266Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Connect a jumper wire between the (B20) Brake Fluid Level signal circuit and the (Z925) Brake Fluid Level ground circuit in the Brake Fluid Level Switch harness connector
    3. Turn the ignition on.
    4. With the scan tool, read the Brake Fluid Level Switch voltage.

      Is the voltage below 1.0 volt?

      Yes 

      • Replace the Brake Fluid Level Switch in accordance with the Service Information.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .

      No 

      • Go To  4
  4. (B20) BRAKE FLUID LEVEL SWITCH CIRCUIT OPEN 
    Fig 3: Checking Brake Fluid Level Switch Circuit For Open
    GC0100267Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Brake Fluid Level Switch.
    3. Disconnect the TIPM harness connector.
    4. Measure the resistance of the (B20) Brake Fluid Level signal circuit between the Brake Fluid Level Switch harness connector and the TIPM harness connector.

      Is the resistance below 5 Ohms?

      Yes 

      • Go To  5

      No 

      • Repair the open in the (B20) Brake Fluid Level Switch signal circuit.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  5. (Z925) SENSOR GROUND CIRCUIT OPEN 
    Fig 4: Measuring Resistance Of Brake Fluid Level Switch Ground Circuit
    GC0100268Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Brake Fluid Level Switch harness connector.
    3. Reconnect the TIPM harness connector.
    4. Measure the resistance of the (Z925) Brake Fluid Level Switch ground circuit between the Brake Fluid Level Switch harness connector and ground.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Replace and program the Totally Integrated Power Module in accordance with the Service Information.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .

      No 

      • Repair the open in the (Z925) Sensor ground circuit.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
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