Lexus LS400 (2000 year). Manual — part 27
N13342
1
2
N13343
1
2
N13344
1
2
–
BODY ELECTRICAL
POWER SHOULDER BELT ANCHORAGE SYSTEM
BE–189
2052
5.
Inspection using an ammeter:
INSPECT PASSENGER’S HEIGHT ADJUSTABLE AN-
CHOR MOTOR AND SENSOR PTC THERMISTOR OP-
ERATION
(a)
Connect the positive (+) lead from the battery to terminal
1, the positive (+) lead from the ammeter to terminal 2,
and the negative (–) lead to battery negative (–) terminal,
then move the slider to end position.
(b)
Continue to apply voltage and check the current changes
to less than 0.1 A within 6 to 46 seconds.
(c)
Disconnect the leads from terminals.
(d)
Approximately 60 seconds later, connect the positive (+)
lead from battery to terminal 2 and the negative (–) lead
to terminal 1, and check that the slider moves to the oppo-
site side.
If operation is not as specified, replace the height adjustable an-
chor motor.
6.
Inspection using an ammeter with a current–measur-
ing probe:
INSPECT PASSENGER’S HEIGHT ADJUSTABLE AN-
CHOR MOTOR AND SENSOR PTC THERMISTOR OP-
ERATION
(a)
Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2.
(b)
Attach a current–measuring probe to the negative (–)
lead, and move the slider to the end position.
(c)
Check the current changes to less than 0.1 A within 6 to
46 seconds.
N13343
1
2
Z08899
Up
Down
Z08795
Wire Harness Side
h–7–1
BE–190
–
BODY ELECTRICAL
POWER SHOULDER BELT ANCHORAGE SYSTEM
2053
(d)
Disconnect the leads from terminals.
(e)
Approximately 60 seconds later, reverse the polarity and
check that the slider moves to the opposite side.
If operation is not as specified, replace the height adjustable an-
chor motor.
7.
INSPECT DRIVER’S SHOULDER BELT ADJUST
SWITCH CIRCUIT (See page
8.
INSPECT DRIVER’S SHOULDER BELT ADJUST
SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
UP
2 – 3
Continuity
OFF
–
No continuity
DOWN
1 – 3
Continuity
9.
INSPECT PASSENGER’S SHOULDER BELT ADJUST
SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
UP
1 – 7
Continuity
OFF
–
No continuity
DOWN
2 – 6
Continuity
If continuity is not as specified, replace the switch.
10.
INSPECT PASSENGER’S SHOULDER BELT ADJUST
SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
6 – Ground
Constant
Continuity
7 – Ground
Constant
Continuity
If circuit is not as specified, inspect wire harness.
N13346
1
4
5
7
N13347
3
4
7
8
Z14752
Wire Harness Side
S–8–1
–
BODY ELECTRICAL
POWER SHOULDER BELT ANCHORAGE SYSTEM
BE–191
2054
11.
Upward:
INSPECT SHOULDER BELT ANCHOR RELAY OPERA-
TION
(a)
Connect the positive (+) lead from the battery to terminal
4 and the negative (–) lead to terminal 5 and 7.
(b)
Connect the positive (+) lead from the voltmeter to termi-
nal 1 and negative (–) lead to battery negative (–) termi-
nal, and check that there is battery positive voltage.
12.
Downward:
INSPECT SHOULDER BELT ANCHOR RELAY OPERA-
TION
(a)
Connect the positive (+) lead from the battery to terminal
4 and the negative (–) lead to terminal 7 and 8.
(b)
Connect the positive (+) lead from the voltmeter to termi-
nal 3 and negative (–) lead to battery negative (–) termi-
nal, and check that there is battery positive voltage.
If operation is not as specified, replace rheostat light control.
13.
INSPECT SHOULDER BELT ANCHOR RELAY CIR-
CUIT
Disconnect the connector from the rheostat light control and in-
spect the connector on the wire harness side, as shown.
Tester connection
Condition
Specified condition
5 – Ground
Seat belt adjust switch position UP
Continuity
7 – Ground
Constant
Continuity
8 – Ground
Seat belt adjust switch position DOWN
Continuity
4 – Ground
Constant
Battery positive voltage
If circuit is not as specified, inspect the circuits connected to oth-
er parts.
Z14981
Wire Harness Side
Connector ”A”
Connector ”B”
e–12–1
h–22–1
BE–192
–
BODY ELECTRICAL
POWER SHOULDER BELT ANCHORAGE SYSTEM
2055
14.
INSPECT TILT AND TELESCOPIC ECU CIRCUIT
Disconnect the ECU connector, and inspect the connector on
wire harness side, as shown.
Tester connection
Condition
Specified condition
A7 – Ground
B9 – Ground
Constant
Continuity
A4 – Ground
B22 – Ground
Constant
Battery positive voltage
B15 – Ground
Ignition switch turned to ON
Battery positive voltage
A6 – B8
Move the driver’s height adjustable
anchor sensor
Resistance changes from Approx. 0 to 5 k
Ω
B8 – B17
Constant
Approx. 4 – 6 k
Ω
If circuit is not as specified, inspect the circuit connected to oth-
er parts.
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