Phone Projection Malfunction (Apple CarPlay)

Cellular, Entertainment, and Navigation | Diagnostic Information and Procedures | Document ID: 4999685 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Circuit/System Description Apple CarPlay is a new phone integration feature that enables iPhone users to display certain apps and functionality from their phone on the vehicles infotainment display. Users can control the apps and functions via the vehicle’s infotainment system touchscreen or voice commands. Certain vehicle options will allow for wireless phone projection. Diagnostic Aids It is not required to download an app to your device for Apple CarPlay. If wireless phone projection is not an option it is recommended to use the device’s factory provided USB cable. Aftermarket or third–party cables may not work. Visit https://www.apple.com/ios/carplay/ for a list of Apple CarPlay compatible apps. This does not guarantee the functionality of the app. Before beginning diagnostics, if available verify Apply CarPlay works from the customers device on a like vehicle, meaning: Same year, same model, same radio RPO and same radio software level. Applications use the mobile device and connection to a service provider to operate. Connection quality issues, or service provider data transmission issues can give the appearance of a vehicle malfunction.

Note

Verify if the customer is using their cellular data plan or the vehicle’s OnStar data plan. Determine if the issue occurs in the same location or if it occurs in multiple locations. Devices may lose wireless phone projection connectivity from the vehicle due to interference from external WiFi signals. It is required for the device to be connected to the vehicle via Bluetooth and WiFi in order for wireless phone projection to operate. Reference Information Schematic Reference Radio/Navigation System Schematics Connector End View Reference Master Electrical Component List Description and Operation Radio/Audio System Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Circuit/System Verification

1. Verify no DTC’s are present. ⇒ If any DTC’s are present. Refer to Diagnostic Trouble Code (DTC) List - Vehicle ⇓ If no DTC’s are present.
2. Verify the correct settings on the radio and the connected device that will allow Apple CarPlay functionality. ⇒ If the settings are not correct. Refer to the vehicle and devices owner manual or manufacturers website for details on enabling CarPlay. ⇓ If the settings are correct.
3. Verify Bluetooth and WiFi are turned ON in both the device and the radio.
4. Verify the software is up to date on the connected device, refer to the device’s owner manual or manufacturers website. ⇒ If the connected device software is not up to date. Recommend the customer update their device to the newest software version. ⇓ If the connected device software has the newest version.
5. Connect a compatible USB device to the USB port and attempt to play audio from the customers vehicle.
6. Verify audio is heard through the infotainment system while operating the USB device. ⇒ If audio is not heard. Refer to Auxiliary Audio Input Malfunction ⇓ If audio is heard.
7. Verify the A11 Radio detects the connected device when plugged in by noting a change in the Phone Projection/Apple CarPlay icon on the Home screen. ⇒ If the A11 Radio does not show a change in the Phone Projection/Apple CarPlay icon. 7.1. Verify the device’s cable is recommended or approved by the device manufacture and there is no damage to the cable or terminals. If equipped with wireless phone projection proceed to step 7.2 ⇒ If the cable is not the correct part or damage is noted advise the customer. ⇓ If no issues with the cable 7.2. Perform a device reset by holding both the Home and Power buttons on the device. 7.3. Attempt to launch the application by pressing the Phone Projection/Apple CarPlay icon within the Home screen. ⇒ If the application does not launch 7.4. Perform the 3 vehicle Factory Resets located in Setting>System>Return to Factory Settings. ⇓ If the A11 Radio does show a change in the Phone Projection/Apple CarPlay icon.
8. Attempt to launch the application by pressing the Phone Projection/Apple CarPlay icon within the Home screen. ⇒ If the application does not launch 8.1. Perform the 3 vehicle Factory Resets located in Setting>System>Return to Factory Settings. ⇓ If the application does launch All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair. Control Module References for control module replacement, programming, and setup.