Lexus LS400 (2000 year). Manual — part 68
BE–100
–
BODY ELECTRICAL
COMBINATION METER
1963
F6 (–) – G16 (+)
F6 (–) – G17 (+)
A/T shift indicator light (L)
Continuity
F7 (–) – G16 (+)
F7 (–) – G17 (+)
A/T shift indicator light (3)
Continuity
F8 (–) – G16 (+)
F8 (–) – G17 (+)
A/T shift indicator light (4)
Continuity
F9 (–) – G16 (+)
F9 (–) – G17 (+)
A/T shift indicator light (D)
Continuity
F10 (–) – G16 (+)
F10 (–) – G17 (+)
A/T shift indicator light (N)
Continuity
F11 (–) – G16 (+)
F11 (–) – G17 (+)
A/T shift indicator light (R)
Continuity
F12 (–) – G16 (+)
F12 (–) – G17 (+)
A/T shift indicator light (P)
Continuity
F15 (+) – F16 (–)
Hi–beam indicator light
Continuity
F17 (+) – F18 (–)
Right turn signal indicator light
Continuity
F19 (+) – F18 (–)
Left turn signal indicator light
Continuity
F20 (+) – F14 (+)
Front fog light indicator light
Continuity
G5 (–) – G16 (+)
G5 (–) – G17 (+)
CRUISE MAIN indicator light
Continuity
G6 (–) – G16 (+)
G6 (–) – G17 (+)
Discharge warning light
Continuity
G7 (–) – G16 (+)
G7 (–) – G17 (+)
Seat belt warning light
Continuity
G8 (–) – G16 (+)
G8 (–) – G17 (+)
Fuel level warning light
Continuity
G9 (–) – G11 (+)
Open door warning light
Continuity
G14 (+) – G13 (–)
SRS warning light
Continuity
G15 (–) – G16 (+)
G15 (–) – G17 (+)
Brake warning light
Continuity
If circuit is not as specified, replace the bulb or circuit plate.
I03500
Wire Harness Side
Connector ”F”
Connector ”E”
Connector ”G”
–
BODY ELECTRICAL
COMBINATION METER
BE–101
1964
3.
INSPECT COMBINATION METER CIRCUIT PLATE
From combination meter ECU to gauges:
(a)
Remove the cover.
(b)
Disconnect connector ”E”, ”F” and ”G” from the combina-
tion meter and inspect the connectors on the wire harness
side as follows.
Terminal
Resistance (
Ω
)
E2 – E3
Approx. 151.8
E4 – E5
Approx. 164.2
E17 – E20
Approx. 151.8
E18 – E19
Approx. 164.2
F1 – F2
Approx. 151.8
F3 – F4
Approx. 164.2
G1 – G2
Approx. 151.8
G3 – G4
Approx. 164.2
If circuit is not as specified, inspect gauge*
1
or meter*
2
. Then
recheck.
If circuit is not as specified, replace the circuit plate.
*1 : Fuel Receiver Gauge and Engine Coolant Temperature Re-
ceiver Gauge
*2 : Speedometer and Tachometer
I03501
Wire Harness Side
Connector ”W”
Connector ”X”
Connector ”Z”
Connector ”Y”
BE–102
–
BODY ELECTRICAL
COMBINATION METER
1965
4.
INSPECT COMBINATION METER CIRCUIT PLATE
From meter ECU main circuit plate to meter ECU sub
circuit plate:
Disconnect connector ”W”, ”X”, ”Y” and ”Z” from the combina-
tion meter and inspect the connectors on the wire harness side
as follows.
Terminal
Specified value
W1 – Y1
Continuity
W2 – Y2
Continuity
W3 – Y3
Continuity
W4 – Y4
Continuity
W5 – Y5
Continuity
W6 – Y6
Continuity
W7 – Y7
Continuity
W8 – Y8
Continuity
W9 – Y9
Continuity
W10 – Y10
Continuity
W11 – Y11
Continuity
W12 – Y12
Continuity
X1 – Z1
Continuity
X2 – Z2
Continuity
X3 – Z3
Continuity
X4 – Z4
Continuity
X5 – Z5
Continuity
X6 – Z6
Continuity
X7 – Z7
Continuity
X8 – Z8
Continuity
X9 – Z9
Continuity
X10 – Z10
Continuity
X11 – Z11
Continuity
X12 – Z12
Continuity
If circuit is not as specified, replace the wire harness.
–
BODY ELECTRICAL
COMBINATION METER
BE–103
1966
5.
INSPECT RHEOSTAT LIGHT CONTROL
(See page
6.
INSPECT COMBINATION METER ILLUMINATION
NOTICE:
To avoid damage to the computer, be careful of the follow-
ing.
Do not make an error with another terminal number.
Do not cause a short with another terminal.
Connect the connectors ”P”, ”Q” and ”H”.
7.
INSPECT SPEEDOMETER ON–VEHICLE
Using a speedometer tester, inspect the speedometer for allow-
able indication error and check the operation of the odometer.
HINT:
Tire wear and tire over or under inflation will increase the indica-
tion error.
If error is excessive, replace the speedometer.
mph (USA)
km/h (CANADA)
Standard indication
Allowable range
Standard indication
Allowable range
20
18.5 – 21.5
20
18 – 23
40
40 – 43
40
38 – 42
60
60.5 – 64
60
57 – 61.5
80
81 – 85
80
76.5 – 81.5
100
102 – 107
100
96.5 – 101.5
120
122.5 – 128.5
120
116 – 121.5
140
136 – 142
160
155.5 – 162.5
180
175 – 183
200
194.5 – 203.5
8.
INSPECT TACHOMETER ON–VEHICLE
(a)
Connect a tune–up test tachometer, and start the engine.
NOTICE:
Reversing the connection of the tachometer will damage
the transistors and diodes inside.
(b)
Compare the tester and tachometer indications.
If error is excessive, replace the tachometer.
RPM(DC 13.5 V, 25
°
C (77
°
F))
Standard indication
Allowable range
700
630 – 770
1000
925 – 1125
2000
1900 – 2200
3000
2845 – 3305
4000
3870 – 4330
5000
4925 – 5320
7000
6875 – 7475
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