Land Rover Range Rover Etm 1995 4th Edition Rover Manual

CRUISE CONTROL (PETROL)B5
6CIRCUIT DIAGRAM
C626
Z256
Transfer Gear
Box ECU
C603
35
3NY
S603
Z108
Anti±Lock
Brake System
ECU
C116R
28
11 C114YG
Z238
Body Electrical
Control Module
(BECM)
C258
19
ONC227
1
1
X168
Stop Lamp
Switch
[1] Brake
Pedal De-
pressed
C227 2
YP [1] [1]
3
00
GP S211
15
F 17
Automatic Gear-
box
10A
See Fuse Details
Anti±Lock Brake
System
S201
C2584
Z121
Cruise Control
ECU C243
5
See Ground Dis-
tribution
8
B
S207
E252
Z238
Body Electrical
Control Module
(BECM)
C243
20
Y
11
X112
Brake...

CRUISE CONTROL (PETROL)B5
7CIRCUIT DIAGRAM
Z121
Cruise Control
ECU
C243
61
OU
Z238
Body Electrical
Control Module
(BECM)
4
YG
2
See Ground Dis-
tribution
1
B
S215
E252 C230
8
X200
Clutch Pedal Position
Switch
[1] Clutch Pedal De-
pressed
[1] 0
UBAutomatic
Transmission
C230
7
OR OK
8 C204910
C15713
M103
Cruise Control
Vacuum Pump2
Manual
Transmission
M
P01 1
R00 1
N10 1
D10 0
3000
2010
1110
Z* 1 1 1
XY Z
1
X294
Gear Box Posi-
tion Switch
[1] X Switch
[2] Y Switch
[3] Z Switch
[1]
0
9
UP
2
See Ground Dis-...

CRUISE CONTROL (PETROL)B5
8CIRCUIT DIAGRAM
2
C506B
9C112
S
C106B
2
C506A C106A
23 C505
NAS Except NASZ238
Body Electrical
Control Module
(BECM)
Z132
Engine Control
Module (ECM) Petrol 

CRUISE CONTROL (DIESEL)B5
9CIRCUIT DIAGRAM
See Ground Dis-
tribution S207
E252
B
Z238
Body Electrical
Control Module
(BECM)
C211 C255
X115
Cruise Control
Switch
62
18 14
5
See Ground Dis-
tribution
4 C211
B
S208
E252
31
BB
Z249
Cruise Control
Converter/In-
verter Module
C241D65
YR
8C241D4
2 C2351
Z119
Rotary Coupler
YS
C24723
X269
Steering Wheel
Switches
[6] Reset/
Decel
[7] Set/Accel
C2476
PB
Z119
Rotary Coupler
See Ground Dis-
tribution S215
E252
WR
5 C235
RW WY OW
WRInterior Lamps
[6] [7]S20200
Z132...

CRUISE CONTROL (DIESEL)B5
10CIRCUIT DIAGRAM
Z108
Anti±Lock Brake
System ECU
C116R
28
11 C114YG
Z238
Body Electrical
Control Module
(BECM)
C258
139
Y
C227
29
1
X168
Stop Lamp
Switch
[1] Brake Pedal
Depressed
C227 2
YP[1] [1]
3
00
GP S211
15
F 17
10 A
See Fuse Details
Anti±Lock Brake
System
S203
Z132
Engine Control
Module (ECM)
See Ground Dis-
tribution B
S207
E252
9
S
50
C112
LHD
C116L RHD
C572 W
14C57120
26
3
680 

31
2
S106
14C202
C121 C102
9C202
C102
S201
K152
Resistor
S104Diesel Diesel 

CRUISE CONTROL (DIESEL)B5
11CIRCUIT DIAGRAM
Z132
Engine Control
Module (ECM)
Z238
Body Electrical
Control Module
(BECM)
4
YG
2
See Ground Dis-
tribution
1
B
S215
E252 C230
8
X200
Clutch Pedal Position
Switch
[1] Clutch Pedal De-
pressed
[1] 0
UBAutomatic
Transmission
C230
4
U
C57212
Manual Trans-
mission
P01 1
R00 1
N10 1
D10 0
3000
2010
1110
Z* 1 1 1
XY Z
1
X294
Gear Box Posi-
tion Switch
[1] X Switch
[2] Y Switch
[3] Z Switch
[1]
0
9
UP
2
See Ground Dis-
tribution
6
BG
E621 C562
[2]
0
7
C660 610
18...

CRUISE CONTROLB5
TROUBLESHOOTING HINTS12
TROUBLESHOOTING HINTS
8. If the interior lights operate but the cruise control
switch light does not illuminate, check the bulb, B
wire and RW wire. If the cruise control system
operates but the cruise control switch light does
not illuminate, check bulb and OW wire.
9. Inspect vacuum hoses for kinks and restrictions.
10. Inspect actuator linkage for restrictions and ad-
justment.
11. Check the following two input signals to the
BeCM (Z238): Signal from Clutch...

CRUISE CONTROLB5
13TROUBLESHOOTING
Test A
OKOK
OKOK
3A 1A
2A
CONDITIONS
Ignition Switch
Position: II
CONDITIONS
Ignition Switch
Position: 0

 

Less than 1 ohm
2A
GO TO TEST B
PROBLEM CAUSE
B Wire -Z121
Cruise Control
ECU
C243
Z121
Cruise Control ECU
C243

B
Cruise Control Switch
On


OW
RESULTS
VB
Within 1.5V of battery voltage
RESULTS 

CRUISE CONTROLB5
14TROUBLESHOOTING
OKOKPROBLEM CAUSE
OKOK
2B 3A
1B
CONDITIONS
Ignition Switch
Position: 0
WY
CONDITIONS
Ignition Switch
Position: II
Wire -
-

 



Cruise Control Switch
On
B Wire
-
Test B
2A
PROBLEM CAUSE
OW Wire -
-
Body Electrical Control Mod-
ule (BECM)
PROBLEM CAUSE
OW Wire - Cruise Control Switch
On


RESULTS
Less than 1 ohm
Z238
Body Electrical
Control Module
(BECM)


C255
WY
Z249
Cruise Control Con-
verter/Inverter Module
C241PV
OW


Transfer Box
Hi Range


Gear Selector
Forward...

CRUISE CONTROLB5
15TROUBLESHOOTING
OKOK
OKOK
2B
3B
CONDITIONS
Ignition Switch
Position: II
BAT VOLT
CONDITIONS
Ignition Switch
Position: 0

 

1B
3B
GO TO TEST C
PROBLEM CAUSE
YR, W Wire -
-
B, PB Wire
Steering Wheel Switches -PROBLEM CAUSE
Cruise Control Converter/In-
verter Module -
C243 RY
On
OffZ249
Cruise Control Con-
verter/Inverter Mod-
ule
C241P


YR
Less than 1 ohm
More than 10K ohms=
=
Cruise Control Switch
On


RESULTS
Steering Wheel Switches
RES/DECEL Switch


On
Off=
=
0V
RESULTS
Steering...