Defender 90 (LD) V8-4.0L (1997)
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.