Portable Audio Interface Panel/ USB Power Supply">
Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Portable Audio Interface Panel/ USB Power Supply

If DTC B1252-19 (USB Port General Electrical Failures - Circuit current above threshold) has been logged, the IAM has detected a current draw from the Portable Audio Interface Panel in excess of 1.7 Amps. In these circumstances, the power supply to the Portable Audio Interface Panel will be cut for an ignition cycle. To reset the system and restore power, the vehicle needs to be locked (with ignition off) and armed for at least 5 minutes.

The USB port on the Portable Audio Interface Panel is able to supply current to a maximum of 500mA. It should be noted that any portable devices connected via the USB port that required more power may not charge or power up correctly and that this may affect the operation of this device with the infotainment system.

APPLE DEVICE COMPATIBILITY

The following table lists some Apple devices and their compatibility with the information and entertainment system using a USB cable.

APPLE DEVICE COMPATIBILITY

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

The symptom chart below should be used when diagnosing audio amplifier module faults

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

GEN 2 . 1 AUDIO AMPLIFIER DIAGNOSTICS

MICROPHONE DIAGNOSTICS

The symptom chart below should be used when diagnosing microphone faults

MICROPHONE DIAGNOSTICS

MICROPHONE DIAGNOSTICS

MICROPHONE DIAGNOSTICS

Pinpoint tests

NOTE:

Soft key confirmation tones will not be audible if this preference is set to off (Set-up / System / Button feedback)

NOTES:

  • Operating the steering wheel mode switch briefly will cycle through the audio/video sources as follows: Radio - DAB/SDARS - My Music - My Video
  • Operating the steering wheel mode switch for >2 seconds will cycle through the minor sources as follows: (Radio) FM1 - FM2 - FM3 - AM1 - AM2, and (My Music) DVD/CD - iPod - BT - Stored CDs - USB - AUX
  • Depending on vehicle specification, various audio/video sources may be installed and are contained in the control modules as follows:
  • Integrated audio module (IAM) - including radio, CD, iPod, USB, my music, my video, phone and navigation
  • Digital radio control module (DRCM)
  • Satellite radio control module (SRCM)
  • TV control module (TVCM)
  • Rear seat entertainment control module (RSECM)

Pinpoint tests

Pinpoint tests

NOTE:

Depending on vehicle specification, various audio/video sources may be installed and are contained in the control modules as follows:

  • Integrated audio module (IAM) - including radio, CD, iPod, USB, my music, my video, phone and navigation
  • Digital radio control module (DRCM)
  • Satellite radio control module (SRCM)
  • TV control module (TVCM)
  • Rear seat entertainment control module (RSECM)

Pinpoint tests

Pinpoint tests

NOTE:

A suitable stylus (for example the stylus supplied with a Panasonic CF- 19) will be required for this procedure.

Pinpoint tests

DIAGNOSTICS FOR INCONTROL APPLICATIONS ( APPLIES TO VEHICLES FITTED WITH TELEPHONE INTERFACE MODULE )

The following diagnostics should be used when customers are reporting issues with the access or operation of infotainment InControl applications.

Check for related DTCs logged in the Telephone Interface Module (TIM) and, where possible, rectify these prior to proceeding with the diagnostic procedures described below. If no related DTCs are logged, proceed with the diagnostic procedures described below.

ACTIVATING THE INCONTROL APPS SYSTEM DIAGNOSTICS

To access the InControl Apps system integral diagnostics follow the steps detailed below:

  1. Activate the InControl Apps system by pressing the InControl Apps key displayed on the touch screen
  2. Press the 'Settings' key (found in the bottom left corner of the InControl Apps connection screen)
  3. Press the blank space in the bottom left of the settings menu screen for at least 12 seconds, until the display changes to the diagnostics PIN entry screen
  4. Input PIN 753 to enter the diagnostics screens
  5. Press the 'Next' key on the diagnostic screen to toggle between the two available diagnostic menus

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