1996 TOYOTA T100 relay

Downloaded from www.Manualslib.com manuals search engine Z15840
Back−up Light Switch
Junction Block No.1
 Back−up Light Relay (A/T)
 GAUGE FuseIgnition Switch
Rear Combination Light
BE037−04
BE−26
− BODY ELECTRICALBACK−UP LIGHT SYSTEM
1826 Author: Date:
1996 TOYOTA T100 (RM449U)
BACK−UP LIGHT SYSTEM
LOCATION

Downloaded from www.Manualslib.com manuals search engine BE038−03
BE2682
Z05930
1
2 3
51
2
3
5
BE4049 BE1840
BE−28
− BODY ELECTRICALBACK−UP LIGHT SYSTEM
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT BACK−UP LIGHT SWITCH CONTINUITY
ConditionTester connectionSpecified condition
Free−No continuity
Push1 − 2Continuity
If continuity is not as specified, replace the switch.
2. INSPECT BACK−UP LIGHT RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 − 2Continuity
Apply B+ between
terminals 1 and 2.3 − 5Continuity
If continuity is not as specified, replace the relay.

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ON
OFF
BE1217
Warning Light
Ignition
Switch
Battery
N07797
ONOFF
N13155
Warning Light
Ignition
Switch
Battery
N06137
ON
OFF BE−44
− BODY ELECTRICALCOMBINATION METER
1996 TOYOTA T100 (RM449U)
20. INSPECT PARKING BRAKE SWITCH
(a) Check that there is continuity between terminals with the
switch ON (switch pin released).
(b) Check that there is no continuity between terminals with
the switch OFF (switch pin pushed in).
If operation is not as specified, replace the switch.
21. INSPECT WASHER LEVEL WARNING LIGHT
(a) Disconnect the connectors from the level warning switch
and parking brake switch.
(b) Connect terminals on the wire harness side connector of
the level warning switch connector.
(c) Remove the CHARGE fuse and turn the ignition switch
ON, check that the warning light come on.
If the warning light does not light up, test the bulb.
22. INSPECT WASHER LEVEL SWITCH
(a) Check that there is no continuity between terminals with
the switch OFF (float up).
(b) Check that there is continuity between terminals with the
switch ON (float down).
If operation is not as specified, replace the switch.
23. INSPECT SEAT BELT WARNING LIGHT
(a) Remove the integration relay from the junction block
No.1.
(b) Ground terminal 9 on the junction block side connector.
(c) Turn the ignition switch ON, check that the warning light
lights up.
If the warning light does not light up, inspect the bulb or wire har-
ness.
24. INSPECT BUCKLE SWITCH CONTINUITY
(a) Check that there is continuity between terminals on the
switch side connector with the switch ON (belt unfas-
tened).
(b) Check that there is no continuity between terminals on the
switch side connector with the switch OFF (belt fastened).
If operation is not as specified, replace the seat belt inner.

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N12612
Z04393
4WD Indicator Light
(Wire Harness Side) Ignition
Switch
Battery
BE3241
OFF
ON
Z04394
Test Bulb
(3.4W)
Bright
Extinguished
Dark
− BODY ELECTRICALCOMBINATION METER
BE−45
1996 TOYOTA T100 (RM449U)
25. INSPECT INTEGRATION RELAY SEAT BELT WARN-
ING SYSTEM OPERATION
(a) Connect the positive (+) lead from the battery to terminals
3 and 9.
(b) Connect the terminal 8 to terminal 9 through the 3.4 W test
bulb.
(c) Connect the negative (−) lead from the battery to terminal
7.
(d) Check that the bulb lights and the buzzer sounds.
(e) Return to step (a), and operate the buzzer again.
(f) Connect the negative (−) lead from the battery to terminal
6.
(g) Check that the buzzer stops sounding.
HINT:
Check the buzzer within a period of 4 to 8 seconds.
If operation is not as specified, replace the relay.
26. INSPECT INTEGRATION RELAY CIRCUIT (See page
BE−12)
27. INSPECT 4WD INDICATOR LIGHT
(a) Disconnect the connector from the 4WD indicator switch.
Connect the switch terminal 2 and body ground.
(b) Turn the ignition switch on. Check that the bulb lights up.
If operation is not as specified, remove and test the bulb.
28. INSPECT 4WD INDICATOR SWITCH
(a) Check that the there is continuity when the switch pin is
pushed.
(b) Check that there is no continuity when the switch is free.
If operation is not as specified, replace the switch.
29. INSPECT LIGHT CONTROL RHEOSTAT
(a) Connect terminals 1 and 3 through a 3.4 W test bulb.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative (−) lead to terminal 2.
(c) Turn the rheostat knob fully counterclockwise, check that
the test bulb goes out.
(d) Gradually turn the rheostat knob clockwise, check that
the test bulb brightness changes from dark to bright.
If operation is not as specified, replace the rheostat.

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N13075
Power Window Master Switch
Ignition Switch
Power Window Switch
Power Window Motor Door Lock Control RelayJunction Block No.1
 GAUGE Fuse
 POWER WINDOW Fuse BE−46
− BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
1846 Author: Date:
1996 TOYOTA T100 (RM449U)
POWER WINDOW CONTROL SYSTEM
LOCATION

Downloaded from www.Manualslib.com manuals search engine Z16016
Door Lock Control Switch
Door Courtesy Switch Junction Block No.1
 GAUGE Fuse
 POWER WINDOW Fuse
Door Lock Control
Relay
Door Lock Motor
 Door Unlock Detection Switch
Ignition Switch
 Key Unlock Warning SwitchDoor Key Lock and Unlock Switch
BE03I−03
BE−50
− BODY ELECTRICALPOWER DOOR LOCK CONTROL SYSTEM
1850 Author: Date:
1996 TOYOTA T100 (RM449U)
POWER DOOR LOCK CONTROL SYSTEM
LOCATION

Downloaded from www.Manualslib.com manuals search engine Z04377
Z09300
Z09301
Z13472
Wire Harness Side
− BODY ELECTRICALPOWER DOOR LOCK CONTROL SYSTEM
BE−53
1996 TOYOTA T100 (RM449U)
(b) Remove the polarity, check that the door lock link moves
to LOCK position.
If operation is not as specified, replace the door lock assembly.
6. INSPECT DRIVER’S DOOR UNLOCK DETECTION
SWITCH OPERATION
Switch positionTester connectionSpecified condition
OFF (Door Lock set to
UNLOCK)−No continuity
ON (Door Lock set to
UNLOCK)4 − 8Continuity
If continuity is not as specified, replace the switch.
7. INSPECT PASSENGER’S DOOR UNLOCK DETEC-
TION SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF (Door Lock set to
LOCK)−No continuity
ON (Door Lock set to
UNLOCK)1 − 5Continuity
If continuity is not as specified, replace the switch.
8. INSPECT DOOR LOCK CONTROL RELAY CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on the wire harness side, as shown in the chart.
Tester connectionConditionSpecified condition
3 − GroundDoor lock control switch or passenger’s door key
lock and unlock switch LOCK or OFFNo continuity
3 − GroundDoor lock control switch or passenger’s door key
lock and unlock switch UNLOCKContinuity
4 − GroundDoor lock control switch or door key lock and
unlock switch UNLOCK or OFFNo continuity
4 − GroundDoor lock control switch or door key lock and
unlock switch LOCKContinuity

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Unlock
16
BE2595 N02970
BE−54
− BODY ELECTRICALPOWER DOOR LOCK CONTROL SYSTEM
1996 TOYOTA T100 (RM449U) 7 − Ground
Passenger’s door courtesy switch OFF
(Door closed)No continuity
7 − GroundPassenger’s door courtesy switch ON
(Door opened)Continuity
9 − GroundDriver’s door lock switch UNLOCKContinuity
9 − GroundDriver’s door lock switch LOCKNo continuity
10 − GroundDriver’s key lock and unlock switch Lock or OFFNo countinuity
10 − GroundDriver’s key lock and unlock switch UNLOCKCountinuity
11 − GroundConstantContinuity
12 − GroundPassenger’s door lock switch UNLOCKContinuity
12 − GroundPassenger’s door lock switch LOCKNo continuity
14 − GroundDriver’s door courtesy switch OFF (Door closed)No continuity
14 − GroundDriver’s door courtesy switch ON (Door opened)Continuity
2 − GroundConstantBattery positive voltage
8 − GroundIgnition switch LOCK or ACCNo voltage
8 − GroundIgnition switch ONBattery positive voltage
13 − GroundKey unlock warning switch OFF
(Ignition key removed)No voltage
13 − GroundKey unlock warning switch ON (Ignition key set)Battery positive voltage
If circuit is as specified, inspect the door lock signal and key−off
power window signal.
9. Door Lock Signal:
INSPECT DOOR LOCK CONTROL RELAY
HINT:
When the relay circuit is as specified, inspect the door lock sig-
nal.
(a) Connect the connector to the relay.
(b) Connect the positive (+) lead from the voltmeter to termi-
nal 1 and the negative (−) lead to terminal 6.
(c) Set the door lock control switch to UNLOCK, check that
the voltage rises from 0 V to battery positive voltage for
approximately 0.2 seconds.