N151NAS2

5/3/2018
N151NAS2 - Service Action: HVAC Control Module Update | TOPIx
N151NAS2
TECHNICAL BULLETIN
0 3 M AY 2 0 1 8
© Jaguar Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional Technicians
with the knowledge, tools, and equipment required to do the job properly and safely. It informs these
Technicians of conditions that may occur on some vehicles, or provides information that could assist in
proper vehicle service. The procedures should not be performed by 'do-it-yourselfers'. If you are not a
Retailer, do not assume that a condition described affects your vehicle. Contact an authorized Land
Rover service facility to determine whether this bulletin applies to a specific vehicle.
I N F O R M AT I O N
Changes are highlighted in blue
SECTION:
412-01: Climate Control
S U B J E C T/ C O N C E R N :
Service Action: HVAC Control Module Update
AFFECTED VEHICLE RANGE:
MODEL:
Discovery (LR)
MODEL YEAR:
2017-2018
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VIN:
000532-034333
ASSEMBLY PLANT:
Solihull
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MARKETS:
NORTH AMERICA
CONDITION SUMMARY:
SITUATION:
An issue has been identified on certain vehicles within the listed Affected Vehicle Range where the
direct pressure sensing valve within the air conditioning compressor becomes 'stuck' and cannot
respond to changing demands for air conditioning compressor displacement. The vehicle continues to
operate; however, the function of the climate system is compromised by the failure mode. The
customer may report a number of symptoms: cycling temperature within the passenger compartment,
too cold, too hot, and odor ingress may occur.
ACTION:
Retailers are required to HOLD affected new vehicles that are within your control and refrain from
releasing the vehicles for new vehicle sale pending completion of the Workshop Procedure detailed in
this Technical Bulletin. Unsold vehicles should have this performed as part of the Pre-Delivery
Inspection (PDI) process but must have it completed prior to vehicle handover to the customer.
Affected vehicles already in the hands of customers should be updated at the next available
opportunity.
PA RTS :
No parts required.
SPECIAL TOOLS:
Jaguar Land Rover-approved Midtronics Battery Power Supply
Jaguar Land Rover-approved diagnostic tool with latest PATHFINDER software
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WARRANT Y:
NOTE:
Check DDW to make sure that a vehicle is affected by this program prior to undertaking any
rework action.
At the time of confirming a booking for vehicle repair, make sure that all outstanding Recall and
Service Actions are identified to ensure the correct parts are available and adequate workshop time is
allocated for repairs to be completed at one visit.
Warranty claims must be submitted quoting the Program Code and the relevant Option Code; this will
result in payment of the stated time. The SRO and parts information is included for information only.
The Option Code(s) that allows for the drive in/drive out allowance may only be claimed if the vehicle
is brought back into the workshop for this action alone to be undertaken.
Repair procedures are under constant review and therefore times / prices are subject to change; those
quoted here must be taken as guidance only. Refer to TOPIx to obtain the latest repair time.
This program is valid for a limited time only. Warranty claims with a repair date prior to the 31 January
2020 closure date must be submitted or payment within 30 calendar days of completion of the repair.
PROGRAM
CODE
OPTION
CODE
DESCRIPTION
N151
B
Configure Existing HVAC
Control Module
N151
C
Configure Existing HVAC
Control Module
Drive In/Drive Out
SRO
TIME
(HOURS)
PARTS/SUNDRY
CODE
QTY./VALUE
85.80.02
0.2
-
-
85.80.02
02.02.02
0.2
0.2
-
-
Normal Warranty policies and procedures apply.
DIAGNOSTIC PROCEDURE:
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CAUTIONS:
A Jaguar Land Rover-approved Midtronics battery power supply must be connected to the
vehicle battery during diagnosis / module programming.
All ignition ON/OFF requests must be carried out; failure to perform these steps may cause
damage to control modules in the vehicle.
1
Connect the Jaguar Land Rover-approved Midtronics battery power supply to the vehicle
battery.
2
NOTE:
The Jaguar Land Rover-approved diagnostic tool must be loaded with PATHFINDER
version 158 (or later).
Connect the Jaguar Land Rover-approved diagnostic tool to the vehicle and begin a new
session.
3
NOTE:
The Jaguar Land Rover-approved diagnostic tool will read the correct Vehicle
Identification Number (VIN) for the current vehicle and automatically take the vehicle
out of Transit mode if required.
Follow the on-screen prompts.
4
Select ECU Diagnostics.
5
Select HVAC Control Module [HVAC].
6
Select Update ECU.
1 Follow all on-screen instructions until the application completes successfully.
2 When all tasks are complete, go to the next Step.
7
Exit the current session.
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1 If required, reset the vehicle to Transit mode.
2 Select the Exit icon.
8
Disconnect the diagnostic tool and battery power supply from the vehicle.
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