Totally Integrated Power Module (TIPM)

C1008-BRAKE FLUID LEVEL CIRCUIT HIGH







- When Monitored:
With the ignition on.

- Set Condition:
When the Totally Integrated Power Module (TIPM) indicates that the Brake Fluid Level Circuit is greater than 4.9 volts for more then five seconds.





1. BRAKE FLUID LEVEL SENSOR SIGNAL VOLTAGE ABOVE 4.9 VOLTS

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

1. Ignition on, engine not running.
2. With the scan tool, read Brake Fluid Level Sensor Signal voltage in the TIPM.

Is the voltage above 4.9 volts?

Yes

- Go To 2

No

- Perform the ABS INTERMITTENT CONDITION diagnostic procedure. ABS Intermittent Condition Test.

2. (B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE




1. Turn the ignition off to the lock position.
2. Disconnect the Brake Fluid Level Sensor harness connector.
3. Ignition on, engine not running.
4. Measure the voltage of the (B20) Brake Fluid Level signal circuit in the Brake Fluid Level Sensor 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 ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 3

3. BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE




1. Turn the ignition off to the lock position.
2. Connect a jumper wire between the (B20) Brake Fluid Level signal circuit and the (Z420) Brake Fluid Level ground circuit in the Brake Fluid Level Sensor harness connector
3. Ignition on, engine not running.
4. With the scan tool, read the Brake Fluid Level Sensor voltage

Is the voltage below 1.0 volt?

Yes

- Replace the Brake Fluid Level Sensor.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 4

4. (B20) BRAKE FLUID LEVEL SWITCH CIRCUIT OPEN




1. Turn the ignition off to the lock position.
2. Disconnect the Brake Fluid Level Sensor harness connector.
3. Disconnect the TIPM C2 harness connector.
4. Measure the resistance of the (B20) Brake Fluid Level signal circuit between the Brake Fluid Level Sensor 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 Sensor signal circuit.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

5. (Z420) SENSOR GROUND CIRCUIT OPEN




1. Turn the ignition off to the lock position.
2. Disconnect the Brake Fluid Level Sensor harness connector.
3. Connect the TIPM C2 harness connector.
4. Measure the resistance of the (Z420) Brake Fluid Level Sensor ground circuit between the Brake Fluid Level Sensor harness connector and ground.

Is the resistance below 5.0 Ohms?

Yes

- Replace and program the Totally Integrated Power Module (TIPM).
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the open in the (Z420) Sensor ground circuit.
- Perform ABS VERIFICATION TEST. ABS Verification Test.