Diagnostic Test
WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- BRAKE FLUID LEVEL SWITCH SIGNAL VOLTAGE BELOW 0.10 OF A VOLT NOTE:
This DTC must be active for the results of this test to be valid.
- Ignition on, engine not running.
- With the scan tool, read Brake Fluid Level Switch Signal voltage.
Is the voltage below 0.10 of a volt?
Yes
- Go To 2.
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to ABS INTERMITTENT CONDITION .
- 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 the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 3.
- BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE
- Turn the ignition off to the lock position.
- Disconnect the Brake Fluid Level Switch harness connector.
- Ignition on, engine not running.
- With the scan tool, read the Brake Fluid Level Switch voltage
Is the voltage approximately 5 volts?
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.
- CHECK THE (B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND
Courtesy of CHRYSLER GROUP, LLC
- Turn the ignition off to the lock position.
- Disconnect the TIPM C1 harness connector.
- Measure the resistance of the (B20) Brake Fluid Level circuit in the Brake Fluid Level Switch harness connector to ground.
Is the resistance below 100 Ohms?
Yes
- Repair the (B20) Brake Fluid Level circuit for a short to ground.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 5.
- TOTALLY INTEGRATED POWER MODULE (TIPM)
Repair
- Replace and program the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .