Diagnostic Test

1) BRAKE FLUID SWITCH CIRCUIT DTC PRESENT
NOTE: Ensure that the Brake Fluid Level is properly filled and the Brake Fluid Level Switch harness connector is properly connected.

With the scan tool, erase DTCs.

Cycle the ignition and wait approximately 15 seconds.

With the scan tool, read DTCs.

Does the scan tool display: BRAKE FLUID LEVEL SWITCH CIRCUIT OPEN?

Yes
1. Refer to symptom list for problems related to "BRAKE FLUID LEVEL SWITCH CIRCUIT OPEN".
No
1. Go To step 2).
2) BRAKE FLUID LEVEL SWITCH

Fig 1: Measuring Resistance Of Brake Fluid Level Switch
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Brake Fluid Level Switch harness connector.

Measure the resistance of the Brake Fluid Level Switch.

Is the resistance below 900 ohms?

Yes
1. Replace the Brake Fluid Level Switch in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST .
No
1. Go To step 3).
3) (B20) RED BRAKE WARNING INDICATOR DRIVER CIRCUIT SHORT TO GROUND

Fig 2: Measuring Resistance Between Ground And Red Brake Warning Indicator Driver Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Brake Fluid Level Switch harness connector.

Disconnect the Instrument Cluster harness connector.

Measure the resistance between ground and the (B20) Red Brake Warning Indicator Driver circuit.

Is the resistance below 5.0 ohms?

Yes
1. Repair the (B20) Red Brake Warning Indicator Driver circuit for a short to ground.
2. Perform BODY VERIFICATION TEST .
No
1. Go To step 4).
4) PARK BRAKE SWITCH
NOTE: Ensure that the Brake Fluid Level Switch and Instrument Cluster harness connectors are properly connected.

Disconnect the Park Brake Switch harness connector.

With the scan tool in Inputs/Outputs, read the Park Brake Switch state.

Does the scan tool display: Open?

Yes
1. Replace the Park Brake Switch in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST .
No
1. Go To step 5).
5) (B25) PARK BRAKE SWITCH SENSE CIRCUIT SHORT TO GROUND

Fig 3: Measuring Resistance Between Ground And Park Brake Switch Sense Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Park Brake Switch harness connector.

Disconnect the Instrument Cluster harness connector.

Measure the resistance between ground and the (B25) Park Brake Switch Sense circuit.

Is the resistance below 5.0 ohms?

Yes
1. Repair the (B25) Park Brake Switch Sense circuit for a short to ground.
2. Perform BODY VERIFICATION TEST .
No
1. Replace and configure the Instrument Cluster in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST .