E4 Check ABS Electronic Control Unit
- Key OFF.
- Disconnect RABS II module harness connector.
- Key ON.
- Does the red brake light turn on?
YES -- Reconnect RABS II module connector. Go to E5. [1][2]E5 - Locate Cause of Red Brake Light on
NO -- Replace anti-lock electronic control unit. Reconnect RABS II module connector. Repeat E1. [1][2]E1 - Check Proper Function of Brake Lamp