Incorrect Diagnosis Of Integrated Audio Module Issues (LTB00718NAS1)

Publication date: 2015-01-14
Reference number: LTB00718NAS1

INCORRECT DIAGNOSIS OF INTEGRATED AUDIO MODULE ISSUES

TECHNICAL SERVICE BULLETIN

Reference Number(s): LTB00718NAS1, Date of Issue: January 14, 2015

LAND ROVER:	2012 Onwards LR4 (LA), Range Rover Evoque (LV); 2014 Onwards Range Rover Sport (LW); 2012-2013 Range Rover Sport (LS); 2013 Onwards Range Rover (LG); 2013-2015 LR2 (LF)
SECTION:	415-00
AFFECTED VEHICLES:	LR4 (LA) Model Year: 2012 Onwards VIN: CA596988 Onwards; Range Rover Evoque (LV) Model Year: 2012 Onwards VIN: CH000447 Onwards; Range Rover Sport (LW) Model Year: 2014 Onwards VIN: EA000002 Onwards; Range Rover Sport (LS) Model Year: 2012-2013 VIN: CA717166-DA814822; Range Rover (LG) Model Year: 2013 Onwards VIN: DA001204 Onwards; LR2 (LF) Model Year: 2013-2015 VIN: DH321215-FH439912

CONDITION SUMMARY

NOTE: This bulletin is for information only.

Situation: The Integrated Audio Module (IAM) which may also be referred to as the Audio Control Module (ACM) could be incorrectly replaced when troubleshooting if issues are incorrectly attributed to it.

Cause: The IAM may be incorrectly diagnosed as the source of the fault and replaced in error.

Before replacing the IAM when there are errors with specific audio functions, check the following associated control modules against the symptoms chart.

Audio Quality

"A 'no or poor quality audio' concern should not be considered to be the result of a failure in the IAM before the amplifier or speakers have been checked and thoroughly excluded first.

Bluetooth®

The IAM controls all Bluetooth connectivity. For Bluetooth® pairing or phone signal issues check the IAM for correct functionality.

CD/DVD

Playback issues - Check the IAM for media integrity and mechanism issues. The eject function is controlled by the IAM although selection is through the Touch Screen (TS).

SDARS Radio

This is NOT an IAM function. Check the Satellite Radio Control Module (SRCM) or associated antennas for correct functionality.

Grayed out buttons

Lost communication through the Media Oriented System Transport (MOST) are not normally attributed to the IAM. Check the MOST ring for correct functionality and replace as necessary.

Navigation

Routing/map, including all images associated with the navigation, traffic updates and voice instructions are all functions within the IAM. The TS only reacts as instructed by the IAM, therefore check the IAM for correct functionality.

Radio

Includes all issues of clarity, not finding channels, not storing radio channels correctly. Check associated antennas and/or IAM for correct functionality.

Action: Follow the Service Instruction outlined below for a more comprehensive symptom review.

PARTS

PARTS DESCRIPTION

Information only

Quantity: -

TOOLS

Refer to Workshop Manual for any required special tools.

WARRANTY

NOTE: Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to TOPIx to obtain the latest repair time.

NOTE: DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.

DESCRIPTION	SRO	TIME (HOURS)	CONDITION CODE	CAUSAL PART
Information only	-	0	-	-

NOTE: Normal Warranty procedures apply.

SERVICE INSTRUCTION

NOTE: Warranty claims may be rejected if this procedure is not followed.

Please refer to TOPIx Workshop Manual, select the model and model year.
All models except Range Rover Evoque
Select Section 4 Electrical: (TOPIx Workshop Manual Section, 415-00: Diagnosis and Testing - Information and Entertainment System).
Range Rover Evoque models
Select Section 4 Electrical: (TOPIx Workshop Manual Section, 415-01: Diagnosis and Testing - Information and Entertainment System).
All models
Once on this page go to the symptom chart section and find the related module issue/customer concern.
If you are still unsure as to which component may be at fault you are requested to raise a Technical Assistance (TA) request through Technical HelpLine.