Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on.
- With the scan Tool, read and record RF Hub DTCs.
Is this DTC active?
Yes
- Go To 2
No
- Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
- CHECK THE CONNECTION AT THE BRAKE PEDAL SWITCH
- Turn the ignition off.
- Disconnect the Brake Pedal Switch connector.
- Check the connection at the Brake Pedal Switch for the following:
- Proper connector installation.
- Damaged connector or locks.
- Corrosion and other signs of water intrusion.
- Weather seal damaged (if equipped).
- Bent or pushed out terminals in the connector.
- Overheating due to a poor connection (discoloration to the terminal due to excessive current draw).
- Perform a terminal drag test on each connector terminal to verify proper terminal tension.
Were any of the above conditions found?
Yes
- Repair any conditions that are found.
No
- Go To 3
- CHECK THE (B16) BRAKE SWITCH SIGNAL CIRCUIT
- Disconnect RF Hub C1 connector
- Check the (B134) Brake Signal 2 circuit for the following:
- Open
- High Resistance (above 3.0 ohms)
- Short To Ground
Were any of the above conditions found?
Yes
- Repair the (B134) Brake Signal 2 circuit for damage in accordance with Service Information.
No
- Replace the Brake Pedal Switch.