Remote Function Actuator Module Will Not REPOND To Diagnostic Equipment Requests (SSM73927)

Publication date: 2018-06-28
Reference number: SSM73927

REMOTE FUNCTION ACTUATOR MODULE WILL NOT REPOND TO DIAGNOSTIC EQUIPMENT REQUESTS

TECHNICAL SERVICE BULLETIN

Reference Number(s): SSM73927, Date of Issue: July 05, 2018

LAND ROVER:	Discovery/L462; Discovery Sport/L550; LR3/L319; Range Rover/L405; Range Rover Evoque/L538; Range Rover Sport/L494; Range Rover Velar/L560
SERVICE CATEGORY:	Diagnostic Software Hardware

ISSUE

Following what appears to be a successful software update to the Remote Function Actuator (RFA) or replacement module using Pathfinder or Symptom Driven Diagnostics (SDD) the module appears to be unresponsive to any further diagnostic commands or smart key remote operation.

CAUSE

Diagnostics Layer (DSL) lock up causes a continuous loop between the Transport Layer (TPL) and DSL.

ACTION

If the concern appears during a RFA module replacement/software update, carry out a battery hard reset by disconnecting the battery earth lead for approximately 30 seconds and re-connect the earth lead. If diagnostic communications to the RFA or smart key remote operation is not restored continue with diagnostics using Pathfinder/SDD and with reference to TOPIx.

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.