Manual:LAND ROVER Range Rover Supercharged 2015Page:48621 / 73010



CHCM/Chassis Control Module/Integrated Suspension Control Module Software Being Wrongly Updated (SSM73101) — 2015 Land Rover Range Rover Supercharged Service Manual

CHCM/Chassis Control Module/Integrated Suspension Control Module Software Being Wrongly Updated (SSM73101)

WARNING: This page is about the Range Rover Base, which is a different variant/trim than selected.
Publication date: 2016-12-20
Reference number: SSM73101

CHCM/CHASSIS CONTROL MODULE/INTEGRATED SUSPENSION CONTROL MODULE SOFTWARE BEING WRONGLY UPDATED

CHCM/CHASSIS CONTROL MODULE/INTEGRATED SUSPENSION CONTROL MODULE SOFTWARE BEING WRONGLY UPDATED

TECHNICAL SERVICE BULLETIN

Reference Number(s): SSM73101, Date of Issue:  December 20, 2016
LAND ROVER: Range Rover/L405; Range Rover Sport/L494
SECTION: Chassis

SERVICE INFORMATION

Symptom  304000 Suspension System

ISSUE

CHCM (Chassis Control Module/Integrated Suspension Control Module) software being updated when not required.

CAUSE

Vehicles are arriving in retailers with various suspension/dynamic response DTCs stored in the CHCM/. Rather than investigating the fault, retailers are seeing that there is an update available and then flashing this software to the module. This clears the fault, masking any issue the vehicle originally had.

ACTION

When presented with a vehicle with faults stored in the CHCM that has a software update available, please fully investigate the fault BEFORE flashing any module. This will ensure the actual issue is fixed rather than masking the root cause.

Technicians - Please rate this SSM and provide comments so that future communications can be improved.

1 = Poor - Basic information provided - The SSM does not help me resolve the customer concern.

3 = Average - Adequate information provided - The SSM partially helps me resolve the customer concern.

5 = Excellent - All required information provided to resolve the customer concern.