Dodge Caliber. Manual — part 109
•
When Monitored:
With the ignition on.
•
Set Condition:
When the Totally Integrated Power Module indicates that the Brake Fluid Level Circuit is less then 0.10 volt.
Possible Causes
BRAKE FLUID LEVEL LOW
(B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT IS SHORTED TO GROUND
BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE
TOTALLY INTEGRATED POWER MODULE
Diagnostic Test
1.
BRAKE FLUID LEVEL SENSOR SIGNAL VOLTAGE BELOW 0.10 VOLTS
NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.
With the scan tool, read Brake Fluid Level Sensor Signal voltage.
Is the voltage below 0.10 volt?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION diagnostic procedure.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
2.
CHECK BRAKE FLUID LEVEL
NOTE: Visually inspect for worn brake linings or undersized rotors.
Was low brake fluid level found?
Yes
>> Repair as needed.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Go To 3
3.
BRAKE FLUID LEVEL SENSOR INTERNAL FAILURE
Turn the ignition off.
Disconnect the Brake Fluid Level Sensor harness connector
Turn the ignition on.
With the scan tool, read the Brake Fluid Level Sensor voltage
Is the voltage approximately 5 volts?
Yes
>> Replace the Brake Fluid Level Sensor in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Go To 4
PM
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 137
4.
CHECK THE (B20) BRAKE FLUID LEVEL SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
Turn the ignition off.
Disconnect the Totally Integrated Power Module harness connector.
Disconnect the Brake Fluid Level Sensor harness connector.
Measure the resistance of the (B20) Brake Fluid Level circuit in the
Brake Fluid Level Sensor harness connector to ground.
Is the resistance below 100 ohms?
Yes
>> Repair the (B20) Brake Fluid Level circuit for a short to
ground.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
No
>> Replace and program the Totally Integrated Power Module
in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
5 - 138
BRAKES - ABS ELECTRICAL DIAGNOSTICS
PM
C1008-BRAKE FLUID LEVEL CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W.
PM
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 139
•
When Monitored:
With the ignition on.
•
Set Condition:
When the Totally Integrated Power Module indicates that the Brake Fluid Level Circuit is greater than 4.9 volts
for more then 5 seconds.
Possible Causes
(B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT OPEN
(B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE
(Z925) SENSOR GROUND CIRCUIT OPEN
TOTALLY INTEGRATED POWER MODULE
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.
Turn the ignition on.
With the scan tool, read Fuel Level Switch Signal voltage.
Is the voltage above 4.9 volts?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION diagnostic procedure.
Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TEST-
ING)
2.
(B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT FOR SHORT TO BATTERY VOLTAGE
Turn the ignition off.
Disconnect the Brake Fluid Level Switch harness connector.
Turn the ignition on.
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 ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
No
>> Go To 3
5 - 140
BRAKES - ABS ELECTRICAL DIAGNOSTICS
PM
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