SSM74284

3/6/2019
TOPIx - SSM74284 - Flat Battery Diagnosis
Reference
SSM74284
Models
Discovery / L462
Discovery Sport / L550
Range Rover / L405
Range Rover Evoque / L538
Range Rover Evoque / L551
Range Rover Sport / L494
Range Rover Velar / L560
Title
Flat Battery Diagnosis
Category
Electrical
Last modified
14-Feb-2019 00:00:00
Symptom
203000 Basic Electrical
Content
Issue:
Vehicles may exhibit a no start complaint due to a repetitive intermittent flat battery. Initial diagnosis
shows no fault found or no measurable quiescent drain.
Cause:
The intermittent cause could be related to a number of factors including but not limited to:
Quiescent drain
Faulty battery
Module software
Wiring continuity
Action:
Following cross-carline investigations of patterns and trends no clear root cause has been established to
date. (See exception below). Therefore a comprehensive test plan has been developed to methodically
evaluate vehicles with flat batteries.
When diagnosing a flat battery, please utilize the TOPIx Workshop Manual instructions outlined in
section 414-01 “Battery, Mounting and Cables – Flat Battery Diagnosis and Testing”.
For L560 Range Rover Velar please also reference SSM 74159 “Vehicle parked with the doors unlocked
experiencing intermittent battery quiescent drain”.
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.
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3/6/2019
TOPIx - SSM74284 - Flat Battery Diagnosis
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.
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