Radio/Navigation Display Control Module J503 , removing and installing

Special tools, testers and auxiliary items required 

Fig 1: Identifying Special Tools - Radio Removal Tool T10057

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• Radio removal tool T10057

• If control module is replaced, select "Replacement" function for appropriate control module in "Guided Fault-Finding" routine.

Use the Vehicle Diagnosis, Testing and Information System VAS 5051 to do so. 

• Turn off all electrical components.
• Remove ignition key.

Removing 

Fig 2: Placing Radio Release Tool T10057 In Release Slits On Radio/Navigation Display Control Module J503

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• Place Radio Release Tool T10057 - arrows  - in release slits on Radio/Navigation Display Control Module J503 until they engage. Points on grip eyes face outward.
• Remove Radio/Navigation Display Control Module J503 from instrument panel.
• Release connectors on Radio/Navigation Display Control Module J503 and remove it.
• Remove Radio Release Tool T10057 by pressing locking tabs on Radio/Navigation Display Control Module J503.

Installing 

• Connect all harness connectors.
• Carefully slide Radio/Navigation Display Control Module J503 into instrument panel and allow it to engage in installation frame.