1994 JAGUAR XJ fuse chart

ZF Automatic Transmissions Service Manual
Problem Possible Cause
1.3.6 Fault Finding Chart
Action
Converter
Stall speed too low
Stall speed too
high and keeps
rising
Acceleration below specification
Top speed below specification
Position 'P'- Park
Will not move out of Park
Does not engage Park
Does not hold
Starter motor does not operate
Position 'R- Reverse
No reverse gear or severely
delayed engagement
High pitched squeaking noise Stator freewheel
faulty allowing
stator to revolve
Engine out of tune
Transmission slip.
Engine out of tune
Torque converter freewheel faulty
allowing stator to revolve.
Engine out of tune.
Torque converter freewheel seized.
Engine out of tune.
Gearshift interlock failure
Parking pawl mechanism sticking
Check cable adjustment
Parking pawl mechanism damaged
Check cable adjustment
Starter
inhibit switch faulty.
Faulty selector lever.
Position
'P' or 'N' not selected.
Check cable adjustment
Dirty oil filter.
Jammed governor.
Jammed reverse inhibit valve.
Low oil level.
'B' clutch destroyed (also no 3rd
gear
in Drive).
'D' clutch destroyed.
'E' clutch destroyed (no engine
braking
in 2nd & 3rd gears.
Reverse gear safety valve faulty. Renew
torque converter
Check engine tune.
Check oil level, check mechanical
failure, renew transmission as
necessary.
Renew torque converter.
Check engine tune.
Renew torque converter.
Check engine tune.
Rectify. Renew fuse, check circuits,
renew relay and solenoid.
Renew park pawl components:
connecting bar, pawl
pin, tension
spring, guide piece
& guide sheet
Adjust cable as necessary.
Replace park pawl components
Adjust cable as necessary.
Replace switch.
Replace lever.
Select 'P'
or 'N'.
Adjust cable as necessary.
Renew oil filter.
Replace governor.
Replace valve block.
Check oil.
Service
/ renew transmission.
Service
/ renew transmission.
Service
/ renew transmission.
Service
/ renew valve block.
Issue 1 August 1994 34

1.3.6 Fault Finding Chart (continued)
Problem Possible Cause
slipping or shaking from start in
'everse gear
Strong jerk, or distant double
erk, when engaging positions
P
-R', or 'N-R' (below 1500RPM
tngine speed)
'B','E or 'D' clutch defective
Damper
'6' defective (will give the
same symptoms when changing
from 2nd to 3rd gears
Action
Service 1 renew transmission.
Service
1 renew valve block
qeverse lamp does not illuminate Starter inhibit switch faulty.
bulbs, fuses and cables
'unctioning correctly) Faulty selector lever.
io drive or severe delay. Renew
switch.
Renew lever.
Slipping or shaking during initial Position
'R' not
selected.
'orward movement
Strong jerk 'N
-D' (below 1500
3PM engine speed) Select
'R'.
Sear change functions
faulty (in c'
Zhange 1st to 2nd 12nd to 1st Governor dirty.
Shift valve 1-2 sticking.
Zhange 1st to
2nd
Renew governor.
Renew valve block.
Zhange 2nd to 3rd
13rd to 2nd
Governor dirty.
Shift valve 3
-4 sticking.
:hange 2nd to 3rd
Zhange 3rd to
4th I 4th to 3rd Renew
governor.
Renew valve block.
Sudden shifts
Jehicle starts in 2nd gear Governor sleeve sticking.
Shift valve 1
-2 sticking.
Governor sleeve sticking.
Shift valves 1
-2 and 2-3 sticking.
Jehicle starts in 3rd gear Renew
governor.
Renew valve block.
Renew governor.
Service
I renew valve block.
Searbox changes 1st to 3rd
Uo shifts Dirty
oil filter.
Oil level incorrect.
'A' clutch defective.
'D' clutch one
-way clutch faulty.
'A' clutch damaged
'A' clutch faulty.
'A' clutch damper faulty.
Id or warm state)
If there is no debris in sump, renew the
oil filter and oil;
if debris is present in
the sump, renew the transmission.
Check oil level.
Service
I renew transmission.
Service
1 renew transmission.
Service
I renew transmision
Service
1 renew transmission.
Service
/ renew valve block.
Brake
'Cl' and 1 or 'C' faulty I Service / renew transmission
Governor dirty.
I Renew governor.
Shift valve 2-3 sticking.
'B' clutch faultv
Renew valve block.
Service
I renew transmission
Dampers sticking
I Service I renew valve block
Shift valve 2
-3 sticking I Service 1 renew valve block
Governor sticking.
Dampers sticking. Change
governor.
Service
I renew valve block
Issue 1 August 1994 35

ZF Automatic Transmissions Service Manual
Problem Possible Cause
2.3.4 Road Test
. Fully check all shift speeds and note. Compare the results with the specification in addition to general observations of transmission behaviour, noises, leaks etc., and consult the following Fault Finding Chart.
Action
CAUTION:
When renewing the transmission, ALWAYS flush out the oil cooler and feed and return pipes.
2.3.5 Electrical Checks
. Check 'Kick-down'.
If any electrical component fault is suspected, refer to Electrical Diagnostic Manual (EDM) to verify the failure mode
before a repair or replacement is attempted.
2.3.6 Fault Finding Chart
Stall speed too low
Stall speed too high and keeps
,ising
hceleration below specification
Top speed below specification
'osition 'P - Park
Nil1 not move out of Park
Ioes not engage Park
Ioes not hold Stator
freewheel faulty allowing stator to
revolve
Engine out of tune
Transmission slip
Engine out of tune
Torque converter freewheel faulty
allowing stator to revolve.
'Kick
-down' switch defective.
Transmission
in 'Limp Home' mode
Engine out of tune
Torque converter freewheel seized
Engine out of tune
Gearshift interlock failure
Check cable adjustment
Parking pawl mechanism sticking
Check cable adjustment
Parking pawl mechanism damaged Renew
torque converter
Check engine tune
Check oil level, check mechanical
failure, renew transmission as
necessary
Check engine tune
Renew torque converter.
Refer to EDM, rectify
I renew
'Kick
-down'switch.
Check.
Check
engine tune
Renew torque converter
Check engine tune
Refer to EDM, rectify
- renew fuse,
check circuits, renew relay and
solenoid.
Check central
'P, check Park switch,
check Brake switch.
Adjust to correct setting
Renew park pawl components:
connecting bar, pawl pin, torsion
spring, pawl, guide piece and guide
sheet.
Adjust to correct setting
Replace park pawl components
61 Issue 1 August 1994

ZF Automatic Transmissions Service Manual
a
2.3.6 Fault Finding Chart (continued)
Problem
Starter motor does not operate
'osition 'R' - Reverse
3everse gear inoperative
Slipping and juddering
Harsh
engagement'p-R' chan
'N-R' change (below 1500RPF
engine speed)
Reverse lamp does not
illuminate (bulbs, fuses and
cables functioning correctly)
Possible Cause
Rotary switch adjustment.
Rotary switch wiring fault.
Rotary switch faulty.
Position
'P or 'N' not selected.
vIV2 faulty.
rNire to MV2 earthed.
3il filter dirty.
Damper
'6' faulty.
Clutch
'6' faulty (also no 3rd gear).
Clutch 'D' faulty.
Clutch
'E' faulty (also no engine braking
in 2nd and 3rd gears).
Pressure regulator valve 1 binding
Rotary switch wiring fault.
Rotary switch faulty.
Reverse gear inhibit valve activated.
Main pressure control valve seized (also
no forward drive in 'D' Drive).
'B'Clutch, 'D'Clutch or 'E' Clutch faulty.
Pressure regulator valve 1 binding
'F'Clutch drum sealing rings faulty
causing
loss of 'E' Clutch pressure.
Damper
'6' faulty (also no 2nd to 3rd
shift).
Pressure regulator valve 1 binding
Modulation pressure too high.
Rotary switch faulty.
Rotary switch setting incorrect.
Rotary switch faulty.
Rotary switch wiring fault.
Action
4djust switch.
qectify.
3ectify or renew.
Select 'F" or 'N'.
Renew valve block.
Renew harness.
Clean
/ replace filter and flush out
the
oil cooler and pipes.
Renew valve block.
Renew transmission.
Renew transmission.
Renew transmission.
Renew valve block.
Rectify.
Rectify or renew.
Renew valve block.
Renew valve block.
Renew transmission.
Renew valve block.
Renew transmission.
Renew valve block.
Renew valve block.
Check TCM Fault Codes.
Rectify or renew.
Adjust setting.
Renew.
Rectify.
Issue 1 August 1994 62