DTC B1520-11: Auxiliary Fan Relay Control Line - Circuit short to ground: Action
NOTE:
Do Not
replace the infotainment master controller for this DTC alone
- Using the Jaguar Land Rover approved diagnostic equipment, perform routine - On Demand Self Test (0x0202) and read the Diagnostic Trouble Code(s). If the DTC is set go to step 2, if the DTC is no longer set go to step 4
- Refer to the appropriate system wiring diagrams and disconnect the infotainment cooling fan from the infotainment master controller and repeat step 1. Check for infotainment cooling fan - short circuit to ground DTC, if the Diagnostic Trouble Code(s) is set go to step 3, if the DTC is no longer set go to step 4
- Refer to the appropriate system wiring diagrams and check the infotainment cooling fan circuit for short circuit to ground. Repair the wiring harness as necessary. Clear the Diagnostic Trouble Code(s) and retest
- Using the Jaguar Land Rover approved diagnostic equipment, check the infotainment master controller software release notes to see if a repair is available and update the infotainment master controller. Clear the Diagnostic Trouble Code(s) and retest