Remote locking alarm control-intermittent operation

REMOTE LOCKING ALARM CONTROL-INTERMITTENT OPERATION

Model

Range Rover Classic with factory fitted alarm Discovery with factory fitted alarm

Affected vehicles

647645 Onwards 081991 Onwards

Date

1995-02-02

Reference

02/02/95

Bulletin text

SUBJECT Remote Locking Alarm Control Intermittent Operation

MODEL

Range Rover Classic with factory fitted alarm Discovery with factory fitted alarm

DETAIL

Tests on remote locking handsets returned for intermittent operation, have determined that handsets are being replaced when they are not faulty. It is apparent that customers do not fully understand the operation of the alarm handset, and are perceiving there is a fault with the unit, and that dealers are replacing the units without testing the operation.

One of the alarm features is the rolling code, If the handset is pressed when out of range ( eg in the customers pocket ), when the customer returns to the vehicle the handset will need to pressed three times in order to re-align the code to operate the alarm system correctly., we believe that because the alarm does not unlock on the first attempt, the customer perceives that there is an intermittent handset fault is present

ACTION REQUIRED

Upon customer complaint of intermittent operation of the alarm handset, and before replacement check the handset functions correctly, Explain the operation to the customer. The customer should also be directed to the owners hand book page 12 (alarm functions).

PARTS INFORMATION

Not Applicable

PROCEDURE

In the event of a customer complaint of intermittent operation alarm handset.

1) Check the alarm hand set is functioning correctly as per the workshop manual section 86 ( handset transmitter ).

2) If the handset is operating correctly, explain the how the rolling code operates, and that the handset will need to be reset if pressed when out of the alarm range.

NOTE: The handset transmits a coded signal, which changes each time the button is pressed. If the handset is operated out of range of the vehicle, the sequence of coded signal will be lost and not recognised by the vehicle. It will be necessary to restore synchronisation of the handset by pressing the button three times within range of the vehicle. See owners manual.

02/02/95

86/01/95/EN

AFFECTED VEHICLES

LP LH 647645 Onwards LJ 081991 Onwards LD

WARRANTY

Not applicable.

COMP. CODE

6S3Z 6S3Y

SRO

Not applicable.

Note returned units found not to be faulty will be rejected as no fault found and the warranty adjusted accordingly.