2010 Land Rover Range Rover (LM) V8-5.0L SC Technical Service Bulletin # TECLTB004522 Date: 121116

2010 Land Rover Range Rover (LM) V8-5.0L SC Technical Service Bulletin # TECLTB004522 Date: 121116

Suspension - Warning Lamp Illuminated (AMK Compressors Only)

TECHNICAL BULLETIN

LTB00452NAS2

16 NOV 2012

*ISSUE 2 CHANGES ARE HIGHLIGHTED IN GRAY*

2010 Land Rover Range Rover (LM) V8-5.0L SC Page 192

SECTION: 204-05

Air Suspension System Warning Lamp Illuminated - Vehicles Fitted

with AMK Compressors Only

AFFECTED VEHICLE RANGE:

CONDITION SUMMARY:

NOTE:

This condition may exist on vehicles originally fitted with AMK compressors (listed below) as well as any vehicles updated as per Technical

Bulletin LTB00420 or LTB00438.

LR4 VIN: BA589535-CA603567

Range Rover Sport VIN: BA708098-CA725317

Range Rover VIN: BA356347-CA367232

Situation:

On vehicles fitted with an AMK compressor only, the Air Suspension System warning lamp may be illuminated along with Diagnostic Trouble

Codes (DTC) C1A36-01 or C1A13-64 stored in the Ride Level Control Module.

Cause:

This may be caused by incorrect drive currents for controlling the compressor exhaust valve.

NOTE:

Only vehicles fitted with AMK (not Hitachi) compressors may be affected by this condition and will have the necessary software update

available.

Action:

In the event of a customer concern of the above, refer to the Repair Procedure outlined update the Ride Level Control Module software.

PARTS:

No parts necessary

TOOLS:

IDS with latest IDS-DVD and Calibration File; first available on IDS-DVD129.06 v.104

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 DDW to obtain the latest repair time.

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

Normal Warranty policies and procedures apply

2010 Land Rover Range Rover (LM) V8-5.0L SC Page 193

REPAIR PROCEDURE

1. Turn ignition 'ON' (engine not running).

2. NOTE: IDS must be loaded with IDS-DVD129.06 v.104 or later.

Connect the IDS to the vehicle and begin a new Symptom Driven Diagnostics (SDD) session.

3. Follow the on-screen prompts, allowing SDD to read the VIN and identify the vehicle.

4. From the Session Type selection screen, choose 'Diagnosis'.

5. Select the 'Selected Symptoms' tab, and then select one of the following:

^ Electrical > Instruments > Information and message centre > Information graphic display > Yellow warning triangle displayed

^ Electrical > Instruments > Information and message centre > Message display area > Chassis

6. Select 'continue'.

7. Select the 'Recommendations' tab.

8. CAUTION: During this procedure, if SDD presents a

question regarding compressor type, always select AMK. If unsure select 'EXIT' at this prompt and repeat this process after the facts are known.

2010 Land Rover Range Rover (LM) V8-5.0L SC Page 194

Failure to make the correct compressor type selection will cause SDD to install incorrect software.

9. From the Recommendations tab, select 'Run' to perform

Configure existing module - Ride level control module' option.

^ Follow all on-screen instructions to complete this task.

10. Exit the current session.

11. Disconnect the IDS and the Midtronics Vehicle Power Supply from the vehicle.