landrover Workshop Repair Guides

Land Rover Workshop Service and Repair Manuals

Drivetrain - Difficult Differential Lock Selection|Page 3341 > < Transfer Gearbox - Will Not Shift Out of Gear|Page 3330
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Differential Lock Switch: Customer Interest
Drivetrain - Difficult Differential Lock Selection

No:

41/02/98/NAS

Ref:
Issue:

1

Date:

10/23/98

Difficult Differential Lock Selection

AFFECTED VEHICLE RANGE:

DISCOVERY (LJ)

up to WA794728

DEFENDER (LD)

All

SITUATION:
INABILITY TO SELECT OR DISENGAGE DIFFERENTIAL LOCK

Difficulty may be experienced engaging or disengaging the differential lock. The differential lock warning light may operate normally, despite the
engagement difficulties.

RESOLUTION:
NEW SWITCH LOCATION SYSTEM ELIMINATES INTERFERENCE WITH LOCK MECHANISM

Use of a switch spacer and new tightening specifications ensures that the differential lock warning light switch is properly positioned and will not
interfere with differential lock engagement or disengagement.

PARTS INFORMATION:

PRC2911

Switch, differential lock warning light

UYF100160 Spacer, differential lock warning light switch
LRN21456

Loctite 577 Thread sealant compound

WARRANTY CLAIMS:

41.20.34

Discovery

Time 1.75 hrs.

Defender

Time 1.00 hr.

Replace differential lock warning light switch with new component

FAULT CODE: U

Normal warranty policy and procedures apply

REPAIR PROCEDURE:

INSTALLATION OF SPACER WITH REPLACEMENT SWITCH

NOTE:

Any time the differential lock warning light switch is replaced, use of the newly introduced spacer will ensure proper adjustment.

1.

Determine that warning light switch is the cause of differential lock engagement difficulties as follows:

^

Back out the switch slightly.

^

Move the differential lock lever to check engagement.

2.

If the switch is the cause, remove the old switch.

Drivetrain - Difficult Differential Lock Selection|Page 3341 > < Transfer Gearbox - Will Not Shift Out of Gear|Page 3330