mirror JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual

rl Electrical
15.4.4 STEERING COLUMN /MIRROR
The steering column / mirror adjustment system comprises the following components:
0 Column tilt motor; up / down
0 Column reach motor; fore / aft
0 Column joystick switch; multi-directional
0 Driver’s mirror motors; horizontal and vertical movement
0 Passenger’s mirror motors; horizontal and vertical movement
0 Mirror joystick switches; driver and passenger - multi-directional
0 Column Mirror Control Module (C / M CM)
15.4.4.1 Column Motors
Thetwo column position adjustment motorsare mounted on the column as embly (one laterally d
one transversely)
allowing both vertical and reach distance adjustment. Each motor unit incorporates a potentiometer which provides
directional movement position control via feedback voltage variations to the
C / M CM. Positional variations are acti- vated by the C / M CM in response to signals from the joy-stickswitch mounted on the left-hand side of the column.
15.4.4.2
The column joy-stickswitch provides control of the column position in all directions. Adjustment of theswitch position
will result in a corresponding movement of the column. This switch also allows the selection of ‘Auto Mode’to enable
the Exit / Entry Mode facility.
Column Joy-stick Switch (Fig. 1 inset)
1. Tilt motor 2. Flexible coupling
3 lanition switch
1
J86-1904
Ifeach motor
Fig. 1 Steering Column Assembly 4
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15.4.4.3
The rearview mirror motors are located within the mirror assemblies, immediately behind the glass in a sealed assem- bly. An additional motor, mounted above the fixing bracket, or foot provides rotational mirror movement from fully
extended to folded flat to the car.
Elnfe:
Driver / Passenger Rear View Mirror Motors
Fold away movement motors are fitted to Japanese market vehicles only.
15.4.4.4 Mirror Joy-stick
The mirror joy-stick are located in the driver’s switch pack, providing inputs to the C/ M CM which operates the relevant
motor accordingly. A mirror select switch determines which mirror is adjusted when the joy-stick is operated.
2
5
1. Mirror movement motors 2.
3. Motor harness 4. Harness connector
5. Mirror glass 6. Mirror housing
7. Mounting foot
Fold away
motor (Japan only)
/ manual fold-back pivot
Fig. 1 Rear View Mirror Assembly
J86-1921
X300 EDM 15.4 - 9 Issue 1 August 1994

IT Electrical
15.4.5 COLUMN / MIRROR CONTROL MODULE
The Column / Mirror Control Module C/ M CM controls the operation of position adjustment motors by acting upon
inputs from the relevant switches. The module also forms an interface with signals from associated systems which
affect column /mirror movement. The
C/ M CM works in conjunction with SCM and SL CM to provide positional adjust- ment memory functions as previously described.
There are three connectors to the
C I M CM single multi-pin socket, designated block A, B and C, which connect the
various inputs / outputs and peripheral devices to the module. Connections are as listed below.
I BLOCK A [26-WAY GREY) 1
I .. I I 41 Input Switched to 12V ..
20 Memory set selected
Input Switched to 12V
21
Tilt restrict ident Input Switched to ground 1 open
22 Key in ignition barrel active
Input Switched to ground
circuit
23
1 Auxiliary ground on Input 1 Switched to ground
24 1 Reference voltage +ve feedback output I4.5v
25 1 Passenger mirror R/L Output 1 +ve 1 -ve
26
1 Mirror motor common Output I +ve / -ve
BLOCK B (lgWAY, GREY)
Pin No. I Description I In / out lsignal
1 Driver mirror L/R feedback Input 140mV - 4.36V
2 Passenger U/D feedback
Input 140mV - 4.36V
3 Driver mirror U/D feedback Input 140mV - 4.36V
4 Column tilt feedback Input 140mV - 4.36V
5 Column reach feedback
input 140mV - 4.36V
6 Reverse gear selected
Input Switched to ground
-

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15.4.6 NON-MEMORY AND MANUAL APPLICATIONS
15.4.6.1
Non-Memory
Seats, column and mirrors may be supplied without memoryfacilities on certain vehicles. In this case, adjustment of
each application is still controlled in the same way but the memory facility is disabled and the memory switch pack
not fitted.
15.4.6.2 Manual Seats
Manual seats are adjustable vertically and horizontally, vertical adjustment being motorized but horizontal adjustment
manually effected. The seats have heated cushions and squab, but are not operated by an electronic control module.
Control is effected using three relays, two for vertical adjustment and one for heating.
Vertical adjustment is requested
by operation of a switch located on the left-hand side of the seat front which completes
the electrical supply to either the raise or lower relay as required. When either relay is energized a change of contact
state connects one side of the motor to
+12V and the other side to ground. Reverse operation reverses supply and
ground connection.
Heating is still controlled by a timed output from the BPU. Operation of a switch located on the
center console indicates
to BPU that heating is required. Battery voltage is then applied to the heater relay for 11 minutes. The relay contact
completes the heater circuit, providing seat heating (and illuminating the switch surround) until the timer expires, or
optimum seat temperature is achieved. Operation of the heater switch before 'time-out' is achieved cancels the heat- ing request. Operation of the heater switch after 'time-out' has been achieved re-starts the heating cycle.
15.4.6.3 Manual Column
Manual column adjustment in the two planes is achieved by purely mechanical means, release catches allowing col-
umn movement within a fixed locking mechanism.

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15.4.7 SYMPTOM FLOW CHARTS
The following test procedures are designed to test the system as a whole, identifying faulty areas and indicating poss- ible solutions by functional operations.
During all test procedures the entry
/ exit mode switch must be OFF.
The first three test procedures listed i.e. drivers seat position adjustments, steering column position adjustments, rear
view mirror position adjustments must be carried out four times, each time under one of the conditions stated below:
Key in ignition barrel
Ignition key in auxiliary position
Driver’s door open with ignition key out
Driver’s door closed within the last 30 seconds with ignition key out.
0
Driver‘s seat position adjustments
1.
2.
3.
0
4.
5.
6.
7.
0
Locate seat switch pack on the side of the seat cushion.
Operate the fore
/ aft movement control switch. Does the seat respond in the correct
manner?
Yes: Proceed to step 3.
No:
Operate front and rear, raise / lower movement control switches. Does seat respond in the
correct manner in each case?
Yes: Proceed to step 4.
No:
Operate squab recline / incline movement control switch. Does squab respond in correct
manner?
Yes: Proceed to step 5.
No:
Operate lumbar pump inflate / deflate control switch. Does lumbar pad stiffen and slacken
according
I y?
Yes: Proceed to step 6
No:
Operate headrest raise / lower switch. Does headrest respond in correct manner?
Yes: proceed to step
7.
No:
Remove key from ignition, close driver‘s door and allow 30 seconds to elapse. Repeat
steps
1 - 6 and check that adjustment cannot be made.
Test complete; proceed to Memory Position Set.
Abort
test and refer to Diagnostic Sub
-Routines.
Abort test and refer to Diagnostic Sub
-Routines.
Abort test and refer to Diagnostic Sub
-Routines.
Abort test and refer to Diagnostic Sub
-Routines.
Abort test and refer to Diagnostic Sub
-Routines.
Steering column position adjustments
1.
2.
Locate steering column joystick switch the LH side of the column.
Operate switch to give fore
/ aft movement. Does the column respond in correct manner?
Yes: Proceed to step 3.
No:
Operate the switch to give raise / lower movement. Does column respond in the correct
manner in each case?
Yes: Proceed to step 4.
No:
Remove key from ignition, close driver’s door and allow 30 seconds to elapse. Repeat
steps 1
- 3 and check that adjustment cannot be made.
Test complete; proceed to Memory Position Set.
Abort
test and refer to Diagnostic Sub
-Routines.
3.
Abort test and refer to Diagnostic Sub-Routines.
4.
5.
X300 EDM 15.4 - 13 Issue 1 August 1994

Rear view mirror position adjustments
1. Locate mirror select switch on driver's door switch pack and select driver's side mirror, ie
rotate switch towards the door.
2. Locate rear view mirror joystick switch on driver's door pack.
Operate the switch to give left
/ right and up / down movement. Does the mirror respond
in the correct manner?
3. Yes: Proceed to step 4 or 5.
No:
Japanese market vehicles only
Operate the switch to action 'fold away mode'. Does mirror respond in the correct manner
in each case?
Yes: Proceed to step
5.
No:
All markets
Operate mirror select switch to opposite position and repeat steps
1 to 4 for passenger side
mirror.
With ignition switched to auxiliary, select reverse gear and operate mirror joy
-stick
downwards. Does passenger side mirror dip automatically?
Yes: Proceed to step
7.
No:
Remove key from ignition, close driver's door and allow 30 seconds to elapse. Repeat
steps
1 - 6 and check that adjustment cannot be made.
Test complete; proceed to Memory Position Set.
Abort
test and refer to Diagnostic Sub
-Routines.
4.
Abort test and refer to Diagnostic Sub-Routines.
5.
6.
Abort test and refer to Diagnostic Sub-Routines.
7.
8.
Memory set position - drivefs side
1.
2.
3.
4.
5.
6.
7.
8.
Position the entry / exit switch, located on the LH side of the steering column, to off and
insert the key in the ignition.
Operate switches to position column, mirrors and seats to preferred positions.
Select 'memory' on the driver's door switch pack. Check that switch illuminates.
Depress desired memory button,
1,2 or 3, on door switch pack within 4 seconds of
memory select. Check that a chime sounds to confirm memory storage.
Operate the switches
so that memorized positions are changed. Depress relevant memory
option button,
1,2 or 3 and check that all positional settings are restored as memorized.
Remove key from ignition, close all doors and allow
30 seconds to elapse. Repeat steps 1
to 4 and check that adjustment cannot be made.
Readjust settings so that memorized positions are changed, leave the vehicle and operate
remote memory recall by locking and unlocking using the remote transmitter. Use both
transmitters to check both memory positions. Check all positional settings are restored as
memorized.
Yes: Proceed to step
8.
No:
Test complete. Abort
test and refer to Diagnostic Sub
-Routines.
X300 EDM Issue 1 August 1994 15.4 - 14

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Carry out the exit 1 entry mode procedure below under the conditions stated below:
. Key in ignition barrel
. Driver's door closed
. Auxiliary ON
. Park brake ON
. Gear selector in Park.
Exit 1 Entry Mode
1.
2.
3.
From the driver's seat, position the memory mode switch, located on the LH side of the
steering column, to auto.
Operate the seat, column and mirror switches to preferred driving position.
Note:
Remove key from ignition. Check that seat moves backwards and column tilts upwards
and away, creating maximum space for exit.
Yes: Proceed to step
4.
No:
Seat must be a minimum of 50mm from rear end stop.
Abort test and refer to Diagnostic Sub
-Routines.
4.
5.
3.
Refit key in ignition, open driver's door. Check that seat moves backwards and column tilts
upwards and away, creating maximum space for exit.
Yes: Proceed to step
5.
No:
Leave key in ignition and exit the vehicle, closing driver's door. Ensure that column and
seat return to driving position. Re-enter vehicle and ensure that column and seat move to
entry position. Close door and check that seat
/ column return to previously selected
driving positions.
Yes: Test complete.
No: Refer to Diagnostic Sub-Routines.
Abort
test and refer to Diagnostic Sub
-Routines.
Seat heaters (driver and passenger)
1.
2.
Turn ignition ON and locate heater select switch on the center console.
Operate the switch to initiate seat heating. Does the switch surround illuminate?
Yes: Proceed to step
3.
No:
Allow sufficient time for heater to take effect. Does seat heat level increase in all
designated areas?
Abort
test and refer to Diagnostic Sub
-Routines.
4.
5.
Yes: Proceed to step 4.
No:
Allow time span to exceed 12 minutes. Does switch surround light extinguish and heating
cease?
Yes: Proceed to step
5.
No:
Re-select heating, allow cycle to commence then operate switch again. Does switch
surround light extinguish and heating cease?
Yes: Test complete
No: Refer to Diagnostic Sub-Routines.
Abort
test and refer to Diagnostic Sub
-Routines.
Abort test and refer to Diagnostic Sub
-Routines.

Electrical IT
Fault:
Possible causes:
Remedy:
Fault: Possible causes:
Remedy:
Fault:
Possible causes:
Remedy:
Fault:
Possible causes:
Remedy:
Fault:
Possible causes:
Remedy: Steering
column positional adjustment inoperative
1. No power supply.
2. Wiring harness or connector fault.
3. Switch faulty.
4. Mechanical failure.
1. 2. Examine harness and connectors between S 1 CM -
3. Renew switch.
4.
Check fuses in 'A' post base fuse boxes.
fuse,
S I C CM - joy-stick switch and SI C CM - motors.
Identify and repair mechanical faults.
Steering column positional adjustment restricted
1. Wiring harness or connector fault.
2. Motor faulty.
3. Switch faulty.
4.
1.
2. Renew faulty motor.
3. Renew faulty switch.
4.
M echa n ica I mechanism fa i I u re.
Examine harness and connectors between
S 1 C CM -
motors and SI C CM and switch.
Identify and repair mechanical faults.
Rear view mirror positional adjustment inoperative or restricted
1. No power supply.
2.
3. Motor faulty.
4. Switch faulty.
5. Mechanical mechanism failure.
1.
2.
3. Renew faulty motor.
4. Renew faulty switch.
5.
Wiring harness or connector fault.
Check fuses in
'A' post base fuse boxes.
Examine harness and connectors between
S 1 C CM -
motors and SI C CM and switch.
Identify and repair mechanical faults.
Recall / Memory set facility inoperative or incorrect
1. Wiring harness or connector fault.
2. Potentiometers out of range or faulty.
3. Switches faulty.
1. Examine harness and connectors between SCM, S I C
CM and switches.
2. PDU only to check.
3. Renew faulty switches.
Exit \Entry facility inoperative or incorrect
1. Wiring harness or connector fault.
2. Potentiometers out of range or faulty.
3. Switch faulty.
1. Examine harness and connectors between SCM, S 1 C
CM and switches.
2.. PDU only to check.
3. Renew faulty switches. ~
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11. Mirror movement motors
a. Examine harness wiring, checking continuity between C / M CM multi-pin connector
and mirror connectors as follows:
C/MCM Function Unit Pin
Connector block
A
Pin 1
Pin 11
Pin 25
Pin 13
Pin 26 Passenger‘s
Mirror U / D 3
Driver’s Mirror U / D 3
Passenger’s Mirror
R / L 10
Driver‘s Mirror R / L 10
Common (both mirrors) 4
b. Test resistance between motor units pin 4 and both pins 3 and 10; a value of
approximately 2Q should be recorded.
Check motor position potentiometers as described in step 12.
C.
(BLOCK A) PO1
(BLOCKA) p24 (BLOCK €3) PO2
(BLOCK A) P25
(BLOCK A) PO4
(BLOCKA)
PI 1
(BLOCK B) PO3
(BLOCK A) P13
(BLOCK
6) PO1
(BLOCK A) P26
I II I I I I I I I
I
I
I
I
22
J86 - 1876
Fig. 1 Mirror Movement Motors
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12. Mirror movement motor position potentiometers
a. Examine wiring harness, checking continuity between C / M CM multi-pin connector
and motor unit connector pins as follows:
ClMCM Motor potentiometer Unit Pin
Connector block
B
Pin 2
Pin 3
Pin
1
Connector block A
Pin 4 Passenger mirror horizontal feedback 5
d. Check resistance across each motor position potentiometer pins 2 and 6; a value of
3.7wl should be indicated.
Check resistance between each motor position potentiometer pin
8 and both pins 2
and 6. Values in the range of lOOQ - 3.6w1 should be recorded, dependent on motor
position.
C.
Passenger mirror vertical feedback
Driver mirror vertical feedback
Driver mirror horizontal feedback 8
8
5
(BLOCK A) PO1
(BLOCK A)
F74 (BLOCK B) PO2
(BLOCK A) P25
(BLOCK A)
PO4
[BLOCKA) PI1
(BLOCK B) PO3
(BLOCKA) PI3
(BLOCK B) W1
(BLOCK A) P26
22
J86 ~ 1876
Fig.
1 Mirror Movement Motor Position Potentiometers
X300 EDM 15.4 - 31 Issue 1 August 1994