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Climate Control System Air Distribution Fault (LTB01068NAS2)

Publication date: 2018-08-15
Reference number: LTB01068NAS2

CLIMATE CONTROL SYSTEM AIR DISTRIBUTION FAULT

CLIMATE CONTROL SYSTEM AIR DISTRIBUTION FAULT

TECHNICAL SERVICE BULLETIN

Reference Number(s): LTB01068NAS2, Date of Issue:  August 15, 2018
LAND ROVER: 2016-2018 Discovery Sport (LC); 2014-2015 Range Rover Evoque (LV); 2015-2018 Range Rover Evoque (LV)
SECTION: 412-01: Climate Control
AFFECTED VEHICLE RANGE: Discovery Sport (LC) MODEL YEAR: 2016-2018 VIN: 544577-727080 ASSEMBLY PLANT: Halewood; Range Rover Evoque (LV) MODEL YEAR: 2014-2015 VIN: 856580-999999 ASSEMBLY PLANT: Halewood; Range Rover Evoque (LV) MODEL YEAR: 2015-2018 VIN: 000051-275900 ASSEMBLY PLANT: Halewood

MARKETS

NORTH AMERICA

CONDITION SUMMARY

SITUATION:

The air blowing through the A-pillar air vents may be noticeably cooler than the air blowing through any other air vents, affecting the ability to set a constant, comfortable temperature in the passenger compartment.

CAUSE:

This may be caused by a Heating Ventilation and Air Conditioning (HVAC) control module software issue.

ACTION:

Should a Customer express this concern, follow the Diagnostic Procedure below.

PARTS

No Parts Required

TOOLS

TOOLS INFORMATION

G12051533
 Jaguar Land Rover-approved Midtronics battery power supply
G12051534
 Jaguar Land Rover-approved diagnostic tool with latest SDD Software Management Pack

WARRANTY

NOTE: The Heating Ventilation and Air Conditioning (HVAC) control module may also be referred to as Air conditioning - Electronic Control Unit (ECU).
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 JLR claims submission system to obtain the latest repair time.
  • The JLR Claims Submission System requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
WARRANTY INFORMATION

DESCRIPTION SRO TIME (HOURS) CONDITION CODE CAUSAL PART
Air conditioning - Electronic Control Unit (ECU) - configuration 82.90.11 0.3 04 LR071289
NOTE: Normal Warranty procedures apply.

DIAGNOSTIC PROCEDURE 'A': SDD

This Diagnostic Procedure is only for vehicles requiring the Jaguar Land Rover-approved diagnostic tool with Symptom Driven Diagnostics (SDD). 

CAUTION:
  • 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.
NOTE: Use DDW to check for Field Service Action program eligibility requiring an Heating Ventilation and Air Conditioning (HVAC) control module software update. If eligible, perform and claim the update as per that program.
  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 DVD153.00 Calibration File 292 (or later).

    Connect the Jaguar Land Rover-approved diagnostic tool to the vehicle and begin a new session.

  3. Follow the on-screen prompts, allowing the diagnostic tool to read the VIN, identify the vehicle, and initiating the data collect sequence.
  4. If the hyperlink is not available:
    1. Select Diagnosis  from the Session Type screen.
    2. Select the Selected Symptoms  tab.
    3. Select one of the following symptoms:
      • Electrical - Climate control system - Temperature regulation - Will not heat to required temperature 
    4. Run and close the Datalogger  tool to reveal the 'Extras' tab.
    5. Select the Extras  tab.
    6. Select Run  to perform the 'Configure existing module - Heating ventilation and air conditioning control module'  option.
  5. Follow all on-screen instructions until the application completes successfully.
    1. When prompted, select the Clear DTCs  option following completion of the software download.
    2. When all tasks are complete, go to the next Step.
  6. Exit the current session.
    1. Select the Session  tab.
    2. Select the Close Session  option.
  7. Disconnect the diagnostic tool and battery power supply from the vehicle.

DIAGNOSTIC PROCEDURE 'B': PATHFINDER

This Diagnostic Procedure is only for vehicles requiring the Jaguar Land Rover-approved diagnostic tool with PATHFINDER. 

CAUTION: A Jaguar Land Rover-approved Midtronics battery power supply must be connected to the vehicle startup 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.

NOTE: Use DDW to check for Field Service Action program eligibility requiring an Heating Ventilation and Air Conditioning (HVAC) control module software update. If eligible, perform and claim the update as per that program.
  1. Connect the Jaguar Land Rover-approved Midtronics battery power supply to the vehicle startup battery.
  2. NOTE: The Jaguar Land Rover-approved diagnostic tool must be loaded with PATHFINDER version 151 (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 all on-screen instructions.

  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.
    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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