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Cruise not available! After LKA activation with Gap Tool

Old Feb 18, 2026 | 03:49 PM
  #1  
web80's Avatar
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Default Cruise not available! After LKA activation with Gap Tool

Hey

after Lane Keep Assist activation using Gap Tool Discovery 5 2018 hse Cruise Not Available message pops out when activating cruise control.

any ideas how to make it work again?

thanks in advance!
tom
 
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Old Feb 18, 2026 | 04:35 PM
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Chucktastic's Avatar
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From: Alpharetta, GA
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This is directly from the gap-diagnostics website and worked for me. Also included AHB if you're interested. Running the routine at the end to reset the IPMA module is the key.



L405, L494, L462 2017 to 2019 and L538, L550 2018-2019

Menu–Car Config–Complete List;

Auto High Beam Assist

Auto High Beam – Sensitivity Menu -> Enabled
Auto High Beam – System Status AHB -> AHB Fitted

– Run routine : IIDTool Menu -> Service/Test -> IPMA-Image Processing Module ‘A’ -> Allow Central Configuratin Data Learning

Lane Departure Warning and Lane Keep Assist

-EUCD-098 Lane Departure Warning = LDW Fitted with Enable Menu & TSR Fitted with Overspeed
-MultiCAN-498 LaneKeepAssistLKA = LKA fitted
-EUCD-026 Power Steering Type = Electric Power Steering with external angle and torque control , only for JLR

– Run routine : IIDTool Menu -> Service/Test -> IPMA-Image Processing Module ‘A’ -> Allow Central Configuratin Data Learning
 
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Old Feb 18, 2026 | 04:52 PM
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Originally Posted by Chucktastic
This is directly from the gap-diagnostics website and worked for me. Also included AHB if you're interested. Running the routine at the end to reset the IPMA module is the key.



L405, L494, L462 2017 to 2019 and L538, L550 2018-2019

Menu–Car Config–Complete List;

Auto High Beam Assist

Auto High Beam – Sensitivity Menu -> Enabled
Auto High Beam – System Status AHB -> AHB Fitted

– Run routine : IIDTool Menu -> Service/Test -> IPMA-Image Processing Module ‘A’ -> Allow Central Configuratin Data Learning

Lane Departure Warning and Lane Keep Assist

-EUCD-098 Lane Departure Warning = LDW Fitted with Enable Menu & TSR Fitted with Overspeed
-MultiCAN-498 LaneKeepAssistLKA = LKA fitted
-EUCD-026 Power Steering Type = Electric Power Steering with external angle and torque control , only for JLR

– Run routine : IIDTool Menu -> Service/Test -> IPMA-Image Processing Module ‘A’ -> Allow Central Configuratin Data Learning

hi
thank you! Got AHB already. I have done exactly as per your list. Still the same.
 
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Old Feb 18, 2026 | 06:00 PM
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From: Alpharetta, GA
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Best to send an email to support at gap-diagnostics. The email is on their website. Patrick knows his stuff and should be able to sort you out.
 
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