DTC B1304-04: Electronic Power Assisted Steering System - System internal failures: Action
WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
- Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Main ECU Supply Voltage DD02. Refer to the electrical circuit diagrams and check the power steering control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTCs and retest. If fault persists, install a new steering gear