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Flat Battery Diagnosis Assistance - Workshop Manual Update (SSM74300) — 2015 Land Rover Range Rover Supercharged Service Manual

Flat Battery Diagnosis Assistance - Workshop Manual Update (SSM74300)

WARNING: This page is about the Range Rover Base, which is a different variant/trim than selected.
Publication date: 2019-03-01
Reference number: SSM74300

FLAT BATTERY DIAGNOSIS ASSISTANCE - WORKSHOP MANUAL UPDATE

FLAT BATTERY DIAGNOSIS ASSISTANCE - WORKSHOP MANUAL UPDATE

TECHNICAL SERVICE BULLETIN

Reference Number(s): SSM74300, Date of Issue:  March 21, 2019
LAND ROVER: Discovery/L462; Discovery Sport/L550; Range Rover/L405; Range Rover Evoque/L538; Range Rover Sport/L494; Range Rover Velar/L560
SERVICE CATEGORY: Electrical

ISSUE

Repeated flat battery reported but measured quiescent current drain within the expected range (< 30 mA)

CAUSE

The intermittent cause could be related to a number of factors including but not limited to:

  • Intermittent Quiescent Drain
  • Faulty Battery
  • Module Software
  • Harness Concern

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  .

Flat Battery Diagnostics can be found in section 414: Battery and Charging System. The sub-chapter will vary depending on vehicle line  .

For L560 Range Rover Velar please also reference SSM 74159 "Vehicle parked with the doors unlocked experiencing intermittent battery quiescent drain".

This SSM is to highlight the workshop manual improvement for flat battery diagnosis. The SSM will be removed 01/06/2019.