2000 MITSUBISHI MONTERO Service Repair Manual

CHASSIS ELECTRICAL-Combination Meter54A-23
COMBINATION METER
SERVICE SPECIFICATIONS
ItemStandard valueLimit
Speedometer indication rangeAt 20 km/h18 - 23–
km/hAt 40 km/h37 - 45–
At 80 km/h75 - 88–
At 120 km/h113 - 132–
At 160 km/h150 - 176–
Speedometer needle swing km/h (when driving at 35 km/h or higher)–±3
Tachometer indication errorWhen engine speed is 700 r/min±120–
r/minWhen engine speed is 2,000 r/minPetrol- 175+225–
Diesel±175–
When engine speed is 3,000 r/minPetrol- 175+300–
Diesel±225–
When engine speed is 4,000 r/minPetrol- 225+375–
Diesel±300–
When engine speed is 4,750 r/min ±260–
When engine speed is 5,000 r/min - 225+425–
When engine speed is 6,000 r/min - 225+475–
Fuel gauge unit standardF position3–
resistance valueWE position11 0–
Fuel gauge unit float heightF position11.9–
mmE position195.2–
Engine coolant temperature gauge unit standard resistance valueW104±13.5–
Combination meter internal62 - 11 (IG power supply - earth)1MWor more–
resistance valueW62 - 25 (IG power supply - earth)1MWor more–(Measured at connector D-38
and connector D-40)
62 - 63 (IG power supply - fuel gauge)1MWor more–
62 - 64 (IG power supply - engine coolant
temperature gauge)1MWor more–
63 - 11 (fuel gauge - earth)180–
63 - 25 (fuel gauge - earth)180–
64 - 11 (engine coolant temperature gauge - earth)210–
64 - 25 (engine coolant temperature gauge - earth)210–
67 - 11 (battery power supply - earth)1MWor more–
67 - 25 (battery power supply - earth)1MWor more–
67 - 63 (battery power supply - fuel gauge)1MWor more–
67 - 64 (battery power supply - engine coolant
temperature gauge)1MWor more–


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S
EA LA NTS
U sa ge lo ca tio n B
ra nd E
ngin e co ola nt te m pera tu re gauge unit S
em i- d ry in g se ala nt:
T hre ebond 11 04 [0 11 0207], Thre ebond 11 41E
( M anufa ctu re d by Thre ebond) N
o. N
am e A
pplic a tio n B
C
D H
arn ess se t
A : Check harn ess
B : LE D harn ess
C : LE D harn ess
a dapte r
D : Pro be F
uelg auge sim ple ch eckin g
E ngin e co ola nt te m pera tu re gauge sim ple
c h eckin g
A : For ch eckin g co nta ct pin co nta ct pre ssu re
B : For ch eckin g th e pow er su pply
C : For ch eckin g th e pow er su pply
D : For ch eckin g th e pow er su pply cir c u it M
B990784 O
rn am entre m ove r M
ete r beze lre m ova l

CHASSIS ELECTRICAL-Combination Meter CHASSIS ELECTRICAL-Combination Meter54A-25
CHART CLASSIFIED BY TROUBLE SYMPTOMS
Trouble SymptomInspection procedure
No.Reference page
Speedometer does not operate. (Other meters and gauges
operate.)154A-25
Tachometer does not operate. (Other meters and gauges
operate.)254A-26
Fuel gauge does not operate. (Other meters and gauges
operate.)354A-27
Engine coolant temperature gauge does not operate.
(Other meters and gauges operate.)454A-28
None of the meters and gauges operate.554A-29
INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM
Inspection procedure 1
Speedometer does not operate. (Other meters and gauges
operate.)
Probable cause
The cause is probably a malfunction of the vehicle speed sensor
input system.D
Malfunction of vehicle speed sensor
D
Malfunction of harness or connector
D
Malfunction of speedometer
D
Malfunction of printed circuit board
NO
MUT-
IISelf-Diag Code
Is MPI, GDI or DIESEL diagnosis code No. 24 output?YESVehicle speed sensor circuit check (Refer to inspection
procedure 6 on P.54A-29.)
OK
Replace the combination meter case.
NG
Check the trouble symptoms.
NGCheck the following connectors:D-01, D-222, E-13, E-113,
C-09Repair
NG
Check the trouble symptoms.
Replace the speedometer.


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CHASSIS ELECTRICAL-Combination Meter54A-26
Inspection procedure 2
Tachometer does not operate.(Other meters and gauges
operate.)
Probable cause
The cause is probably that the ignition signal is not being input from
the engine, or that there is a malfunction of the meter power supply
or earth circuit.D
Malfunction of tachometer
D
Malfunction of harness or connector
D
Malfunction of printed circuit board
OK
NG
Replace the combination meter case.
OK
Check the trouble symptoms.
NO
MUT-
IISelf-Diag Code
Is MPI, GDI or DIESEL diagnosis code No. 44 output?YESCode No. 44 Ignition coil and power transistor unit system
(Refer to GROUP 13A - Troubleshooting.)
NG
Replace the tachometer.
NG
NG
Repair RepairCheck the harness between the combination meter and the
engine-ECU.
OK:Continuity
Check the trouble symptoms.
Check the following connectors:
<6G74-A/T>D-01, D-33, E-13, B-04, D-120,
<6G74-M/T>D-01, D-33, E-13, B-04, D-117,
<4M41>D-01, D-33, E-13, D-112,
<4D56>D-01, D-33, E-13, B-07, B-07-1


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P
ro bab le cau se R
epla ce th e fu el gauge unit .
( 2 )N G N
G C
heck th e harn ess betw een th e co m bin atio n mete r and th e
f u el gauge, and re pair if nece ssa ry . O
K C
heck th e tr o uble sym pto m s. F
uel gauge cir c u it ch eck
D D
is co nnect fu el gauge unit co nnecto r F-2 9.
D U
se th e sp ecia l to ol to co nnect a te st la m p (1 2 V -3.4
W )to th e harn ess-s id e co nnecto r. (R efe r to Fig ure 1.)
D I
g nit io n sw it c h : O N
( 1 ) D oes th e te st la m p illu m in ate ?
O K: I
llu m in ate d
( 2 ) D oes th e fu el gauge needle sw in g about half - w ay?
O K: S
w in gs (
1 )N G N
G R
epla ce th e co m bin atio n mete r ca se . N
G C
om bin atio n mete r fu el gauge te rm in al co ntin uit y ch eck (R efe r
t o P.5 4A -3 1.)
OK R
epla ce th e fu el gauge and engin e co ola nt te m pera tu re
a sse m bly . C
heck th e tr o uble sym pto m s.
N G C
heck th e tr o uble sym pto m s. T
e st la m p
( 1 2 V/3 .4 W ) w
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E
arth T
e st la m p (1 2 V
- 3.4 W ) F
ig . 2 <
6G 74-G DI> <
4D 56> F
ig . 3 C
onnecto r E
arth T
e st la m p (1 2 V
- 3.4 W )
5
4A -2 8 P
ro bab le cau se R
epla ce th e engin e co ola nt te m pera tu re gauge unit .
( 2 )N G N
G C
heck th e harn ess betw een th e co m bin atio n mete r and th e
e ngin e co ola nt te m pera tu re gauge, and re pair if nece ssa ry . O
K C
heck th e tr o uble sym pto m s. E
ngin e co ola nt te m pera tu re gauge cir c u it ch eck
D D
is co nnect engin e co ola nt te m pera tu re gauge unit
c o nnecto r B -5 0, <4D 56> B -0 7-2 .
D C
onnect a te st la m p (1 2V -4W )to th e harn ess-s id e
c o nnecto r. (R efe r to Fig ure 2, 3 and Fig ure 5.)
D I
g nit io n sw it c h : O N
( 1 ) D oes th e te st la m p illu m in ate ?
O K: I
llu m in ate d
( 2 ) D oes th e engin e co ola nt te m pera tu re gauge needle sw in g
a bout half - w ay?
O K: S
w in gs (
1 )N G C
heck th e tr o uble sym pto m s. N
G R
epla ce th e fu el gauge and engin e co ola nt te m pera tu re
a sse m bly . E
ngin e co ola nt te m pera tu re gauge ch eck (P .5 4A -3 2.) R
epla ce th e co m bin atio n mete r ca se .
N
G E
arth T
e st la m p (1 2 V
- 3.4 W ) F
ig ure 4 <
4M 41> w
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P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k

CHASSIS ELECTRICAL-Combination Meter54A-29
Inspection procedure 5
None of the meters and gauges operate.
Probable cause
If the indicators and warning lamps are normal, then the harness
from the power supply (IG1) to the combination meter is normal.D
Malfunction of printed circuit board
D
Malfunction of harness or connector
NGRepair NG
OK
Check the trouble symptoms.Repair
OK
Check the harness between the combination meter and body
earth.
Check the following connectors:D-27, D-233, D-218, D-01,
D-03
NG
Check the harness between fusible link No. 2 and the
combination meter.
Replace the combination meter case.
Inspection procedure 6
Vehicle speed sensor check
The vehicle speed sensor is used by the speedometer, engine-ECU and A/T-ECU.
NG
Check the harness between the vehicle speed sensor and
body earth, and repair if necessary.
RepairNG
OK
Check the trouble symptoms.NG
Check the harness between the vehicle speed sensor and
multipurpose fuse No. 13, and repair if necessary.
RepairNG
OK
Check the trouble symptoms.
Check the following connectors:D-213, E-115, C-09
(3)NG
(2)NG
Check the following connectors:C-09
NG
Check the harness between the vehicle speed sensor and the
combination meter, and repair if necessary.
RepairNG
OK
Check the trouble symptoms.
OK
Measure at vehicle speed sensor connector C-09.
DDisconnect the connector and measure at the harness
side.
(1) Voltage between terminal 3 and earth
OK:4.5 V or higher
(2) Continuity between terminal 2 and earth
OK:Continuity
(3) Voltage between terminal 1 and earth
OK:System voltage(1)NGCheck the following connectors:D-01, D-222, E-13, E-113,
C-09
Vehicle speed sensor check (Refer to P.54A-33.)NG
Replace
NOTE
If the trouble symptoms cannot be eliminated by the above checks, there is probably a short-circuit at
the vehicle speed sensor output side (harness, speedometer, engine-ECU or A/T-ECU), and so this should
be checked.


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O
N-V EH IC LE SER VIC E
S PEED O M ETE R CHEC K
1 . Check th at th e ty re in fla tio n pre ssu re is at th e va lu e
i n dic a te d on th e ty re pre ssu re la bels .
2 . Pla ce th e ve hic le onto a sp eedom ete r te ste r.
3 . Pla ce wheel lo cks on fr o nt wheels .
N O TE
S et th e ve hic le to 2W D.
4 . In sta ll a pulle r to th e to w in g hook and tie -d ow n hook
a th e fr o nt of th e ve hic le to sto p th e fr o nt wheels fr o m
m ovin g sid ew ays, and se cu re both ends of th e pulle r
t o anch or pla te s.
5 . Connect a ch ain or wir e ca ble to th e re ar to w in g hook
a nd se cu re th e oth er end to astr o ng, rig id su pport, to
s to p th e ve hic le fr o m movin g.
6 . Check th at th e sp eedom ete r dis p la y ra nge is wit h in th e
s ta ndard va lu e, and th at th e needle sw in g is wit h in th e
l im it va lu e.
S ta n dard valu e:
S peed km /h 2
0 4
0 8
0 1
20 1
60 S
peedom ete r
d is p la y ra nge
k m /h 1
8 -
2 3 3
7 -
4 5 7
5 -
8 8 1
1 3 -
1 32 1
50 -
1 76 P
ulle r F
ro nt A
nch or pla te E
ngin e sp eed
d ete ctio n te rm in al E
ngin e ta ch om ete r P
aper clip
w
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