2010 Land Rover LR4 (LA) V6-4.0L 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*
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
2010 Land Rover LR4 (LA) V6-4.0L Page 175
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
REPAIR PROCEDURE
1. Turn ignition 'ON' (engine not running).
2010 Land Rover LR4 (LA) V6-4.0L Page 176
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.
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.
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