DTC B1540-13: Electrically Deployable Towbar Speaker - Circuit open: Action

NOTE: This DTC does not indicate if a speaker short is present

Inspect the security and integrity of the deployable towbar speaker circuit connectors and rectify as required
Inspect the deployable towbar speaker for damage and rectify as required
Refer to the appropriate system wiring diagrams and check the deployable towbar speaker circuit for open circuit, high resistance (nominal resistance 4 ohms). Repair the wiring harness as necessary, clear the DTC and retest