relay TOYOTA T100 1996 Factory Service Manual

Downloaded from www.Manualslib.com manuals search engine Z08520
BE02X−03
Z14244
OFF
ON
N12605
N12606
BE−12− BODY ELECTRICALIGNITION SWITCH AND KEY UNLOCK WARNING
SWITCH
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT IGNITION SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
LOCK−No continuity
ACC2 − 3Continuity
ON1 − 2 − 3
7 − 8Continuity
START1 − 3 − 6
7 − 8Continuity
If continuity is not as specified, replace the switch.
2. INSPECT KEY UNLOCK WARNING SWITCH CONTI-
NUITY
Switch positionTester connectionSpecified condition
OFF (Key removed) −No continuity
ON (Key set)4 − 5Continuity
If continuity is not as specified, replace the switch.
3. Key Unlock Warning System:
INSPECT INTEGRATION RELAY OPERATION
(a) Connect the positive (+) lead from the battery to terminal
2 and 3.
(b) Connect the negative (−) lead from the battery to terminal
7 and 10.
(c) Check the buzzer sounds.
(d) Disconnect the positive (+) lead from the battery to termi-
nal 3.
(e) Check that the buzzer stops sounding.

Downloaded from www.Manualslib.com manuals search engine N12607
N12608
Junction Block Side
− BODY ELECTRICALIGNITION SWITCH AND KEY UNLOCK WARNING
SWITCHBE−13
1996 TOYOTA T100 (RM449U)
(f) Connect the positive (+) lead from the battery to terminal
3.
(g) Disconnect the negative (−) lead from the battery to termi-
nal 10.
(h) Check that the buzzer stops sounding.
If operation is not as specified, replace the relay.
4. INSPECT INTEGRATION RELAY CIRCUIT
Remove the relay from the junction block No.1 and inspect the
connectors on the junction block side.
Tester connectionConditionSpecified condition
2 − GroundKey unlock warning switch OFFNo continuity
2 − GroundKey unlock warning switch ONContinuity
*4 − GroundConstantContinuity
6 − GroundBuckle switch OFFNo continuity
6 − GroundBuckle switch ONContinuity
7 − GroundConstantContinuity
10 − GroundDriver’s door courtesy switch OFFNo continuity
10 − GroundDriver’s door courtesy switch ONContinuity
12 − GroundPassenger’s door courtesy switch OFFNo continuity
12 − GroundPassenger’s door courtesy switch ONContinuity
1 − GroundIgnition switch LOCKNo voltage
1 − GroundIgnition switch ACC or ONBattery positive voltage
3 − GroundConstantBattery positive voltage
5 − GroundIgnition switch LOCK or ACCNo voltage
5 − GroundIgnition switch ONBattery positive voltage
8 − GroundIgnition switch LOCK or ACCNo voltage
8 − GroundIgnition switch ONBattery positive voltage
9 − GroundIgnition switch LOCK or ACCNo voltage
9 − GroundIgnition switch ONBattery positive voltage
11 − GroundLight control switch OFFNo voltage
11 − GroundLight control switch TAIL or HEADBattery positive voltage
*: SR5 Model
If circuit is as specified, trying replacing the relay with a new
one.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.

Downloaded from www.Manualslib.com manuals search engine Z19311
Relay Block
 Headlight Control Relay
*2  Headlight Dimmer Relay
*1  HEAD (RH) Fuse
*2  HEAD (RH−Hi) Fuse
*2  HEAD (RH−Lo) Fuse
*1  HEAD (LH) Fuse
*2  HEAD (LH−Hi) Fuse
*2  HEAD (LH−Lo) Fuse
 DOME Fuse

*1 : USA Models Only
*2 : CANADA Models Only
D.R.L. Daytime Running Light
Headlight *2 D.R.L. Resister
Combination Switch
 Light Control Switch
 Headlight Dimmer SwitchIgnition Switch
D.R.L. Main
Relay
Door Courtesy
Switch
Rear Combination Light
Junction Block No.1
 Taillight Control Relay
*2  D.R.L. No.4 Relay
 Integration Relay
*2  D.R.L. No.4 Fuse
 GAUGE Fuse
 TAIL Fuse
 ECU−B Fuse
BE02Z−03
BE−14
− BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
1814 Author: Date:
1996 TOYOTA T100 (RM449U)
HEADLIGHT AND TAILLIGHT SYSTEM
LOCATION

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HEAD
TAIL
OFF
Flash
BE031−02
Z08521
1 2
3 41 2
3 4
Z08522
− BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE−17
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT LIGHT CONTROL SWITCH AND HEAD-
LIGHT DIMMER SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF
Low beam−No continuity
OFF
High beam−No continuity
OFF
Flash5 − 12 − 13Continuity
TAIL
Low beam10 − 11Continuity
TAIL
High beam10 − 11Continuity
TAIL
Flash10 − 11
5 − 12 − 13Continuity
HEAD
Low beam4 − 10 − 11
6 − 13Continuity
HEAD
High beam4 − 10 − 11
5 − 13Continuity
HEAD
Flash4 − 10 − 11
5 − 12 − 13Continuity
If continuity is not as specified, replace the switch.
2. INSPECT HEADLIGHT CONTROL RELAY CONTINU-
ITY
ConditionTester connectionSpecified condition
Constant1 − 2Continuity
Apply B+ between
terminals 1 and 2.3 − 4Continuity
If continuity is not as specified, replace the relay.
3. INSPECT TAILLIGHT CONTROL RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 − 2Continuity
Apply B+ between
terminals 1 and 2.2 − 3Continuity
If continuity is not as specified, replace the relay.

Downloaded from www.Manualslib.com manuals search engine Z08523
1 2
3
41 2
3
4
N15399
N15400
N15773
N06230
Wire Harness Side
12
34 5 867
11
91012 13
17 16 15 14
18 BE−18
− BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
1996 TOYOTA T100 (RM449U)
4. INSPECT HEADLIGHT DIMMER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 − 4
2 − 4Continuity
Apply B+ between
terminals 2 and 4.3 − 4Continuity
If continuity is not as specified, replace the relay.
5. INSPECT DOOR COURTESY SWITCH
(See page BE−25)
6. Light−On Warning System:
INSPECT INTEGRATION RELAY OPERATION
(a) Connect the positive (+) lead from the battery to terminal
2 and 11.
(b) Connect the negative (−) lead from the battery to terminal
7 and 10.
(c) Check the buzzer sounds.
(d) Disconnect the positive (+) lead from the battery to termi-
nal 2.
(e) Check that the buzzer stops sounding.
(f) Connect the positive (+) lead from the battery to terminal
2.
(g) Disconnect the negative (−) lead from the battery to termi-
nal 10.
(h) Check that the buzzer stops sounding.
If operation is not as specified, replace the relay.
7. Connector Disconnected:
INSPECT DAYTIME RUNNING LIGHT RELAY CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on the wire harness side.

Downloaded from www.Manualslib.com manuals search engine Z10157
From Back Side
17
Z08559
1
2
3
41
2
3
4
− BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE−19
1996 TOYOTA T100 (RM449U) Tester connection
ConditionSpecified condition
5 − GroundLight control switch OFF or TAILNo continuity
5 − GroundLight control switch HEADContinuity
7 − Ground
16 − GroundHeadlight dimmer switch
Low beamNo continuity
7 − Ground
16 − GroundHeadlight dimmer switch
High beam or FlashContinuity
8 − GroundParking brake switch OFF
(Parking brake lever released)No continuity
8 − GroundParing brake switch ON
(Parking brake lever pulled up)Continuity
12 − GroundConstantContinuity
13 − GroundConstantContinuity
2 − GroundIgnition switch LOCK or ACCNo voltage
2 − GroundIgnition switch ON or STARTBattery positive voltage
6 − GroundConstantBattery positive voltage
11 − GroundEngine StopNo voltage
11 − GroundEngine RunningBattery positive voltage
If circuit is as specified, perform inspections.
8. Connector Connected:
INSPECT DAYTIME RUNNING LIGHT RELAY CIRCUIT
Connect the wire harness side connector to the relay and in-
spect wire harness side connector from the back side, as
shown.
Tester connectionConditionSpecified condition
17 − GroundHeadlight dimmer switch
Low beamNo voltage
17 − GroundHeadlight dimmer switch
High beam or FlashBattery positive voltage
If circuit is as specified, trying replacing the relay with a new
one.
9. INSPECT DAYTIME RUNNING LIGHT RELAY NO.4
CONTINUITY
ConditionTester connectionSpecified condition
Constant3 − 4Continuity
Apply B+ between
terminals 3 and 4.1 − 2Continuity
If continuity is not as specified, replace the relay.

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Relay Block
 HAZ−HORN Fuse
Front Turn Signal LightRear Combination Light
Hazard Warning Switch
Combination Switch
 Turn Signal SwitchIgnition Switch
Turn Signal Flasher
Junction Block No.1
 TURN Fuse
BE033−04
BE−22
− BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
1822 Author: Date:
1996 TOYOTA T100 (RM449U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION

Downloaded from www.Manualslib.com manuals search engine N12939
Relay Block
 DOME FuseSpot Light Room Light
Door Courtesy Switch
Door Courtesy Switch
Footwell Light
BE035−02
BE−24
− BODY ELECTRICALINTERIOR LIGHT SYSTEM
1824 Author: Date:
1996 TOYOTA T100 (RM449U)
INTERIOR LIGHT SYSTEM
LOCATION

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.