high beam TOYOTA T100 1996 Factory Service Manual

Downloaded from www.Manualslib.com manuals search engine SS03A−03
− SERVICE SPECIFICATIONSBODY ELECTRICAL
SS−77
251 Author: Date:
1996 TOYOTA T100 (RM449U)
BODY ELECTRICAL
SERVICE DATA
DAYTIME RUNNING LIGHT MAIN RELAY (Wire Harness Side)
2 − Ground (Ignition Switch LOCK or ACC)No voltage
2 − Ground (Ignition Switch ON or START)Battery positive voltage
6 − Ground (Constant)Battery positive voltage
11 − Ground (Engine Stop)No voltage
11 − Ground (Engine Running)Battery positive voltage
DAYTIME RUNNING LIGHT MAIN RELAY (Connector connected)
17 − Ground (Headlight dimmer switch LOW beam)No voltage
17 − Ground (Headlight dimmer switch HIGH beam or Flash)Battery positive voltage
TURN SIGNAL FLASHER
Flashes/ Minute60 − 120
SPEEDOMETER (Using a speedmeter tester)
Standard indication (mph)Allowable range (mph)
2018 − 24
4038 − 44
6058 − 66
8078 − 88
10098 − 11 0
12011 8 − 132
Standard indication (km/h)Allowable range (km/h)
2017 − 24
4038 − 46
6057.5 − 67
8077 − 88
10096 − 109
12011 5 − 130
140134 − 151.5
160153 − 173
TACHOMETER (On−Vehicle) / DC 13.5 V 20 °C at (68 °F)
Standard indicationAllowable range
700610 − 750
3,0002,850 − 3,150
5,0004,850 − 5,150
7,0006,790 − 7,210
VOLT GAUGEResistance (Ω)
A − BApprox. 347.0 Ω
FUEL RECEIVER GAUGE (w/ Tachometer)Resistance (Ω)
A − BApprox. 137.0 Ω
A − CApprox. 123.0 Ω
B − CApprox. 260.0 Ω
FUEL RECEIVER GAUGE (w/o Tachometer)Resistance (Ω)
A − BApprox. 150.0 Ω
A − CApprox. 80.0 Ω

Downloaded from www.Manualslib.com manuals search engine P20582
Terminal F
− CHARGING (3RZ−FE)CHARGING SYSTEM
CH−5
1996 TOYOTA T100 (RM449U)
Connect the test lead from the positive (+) terminal
of the ammeter to terminal B of the generator.
Connect the positive (+) lead of the voltmeter to ter-
minal B of the generator.
Ground the negative (−) lead of the voltmeter.
(b) Check the charging circuit as follows:
With the engine running from idling to 2,000 rpm, check
the reading on the ammeter and voltmeter.
Standard amperage:
10 A or less
Standard voltage:
At 25 °C (77°F): 14.0 − 15.0 V
At 115 °C(239 °F): 13.5 − 14.3 V
If the voltage reading is greater than standard voltage, replace
the voltage regulator.
If the voltage reading is less than standard voltage, check the
voltage regulator and generator as follows:
With terminal F grounded, start the engine and
check the voltage reading of terminal B.
If the voltage reading is higher than standard volt-
age, replace the voltage regulator.
If the voltage reading is less than standard voltage,
repair the generator.
10. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater fan control switch
to HI.
(b) Check the reading on the ammeter.
Standard amperage:
30 A or more
If the ammeter reading is less than standard amperage, repair
the generator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than standard amperage.

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Terminal F
CH−4
− CHARGING (5VZ−FE)CHARGING SYSTEM
1223 Author: Date:
1996 TOYOTA T100 (RM449U)
If the voltage reading is less than the standard voltage, check
the voltage regulator and generator as follows:
With terminal F grounded, start the engine and
check the voltage reading of terminal B.
If the voltage reading is higher than the standard
voltage, replace the voltage regulator.
If the voltage reading is less than the standard volt-
age, repair the generator.
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater fan control switch
to HI.
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more
If the ammeter reading is less than standard amperage, repair
the generator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than standard amperage.

Downloaded from www.Manualslib.com manuals search engine − BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE−7
1996 TOYOTA T100 (RM449U) A/T Oil temperature warning indicator light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. A/T Oil Temperature Sensor
4. Wire Harness−
BE−36
BE−38
−
SRS warning light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Center Airbag Sensor Assembly
4. Wire Harness−
BE−36
DI−372
−
Malfunction indicator does not light up
1. Bulb
2. ECM
3. Wire Harness−
−
−
−
Seat belt warning light does not light up
1. Bulb
2. Integration Relay
3. Wiring Harness−
−
−
Discharge warning light does not light up
1. IGN Fuse (Junction Block No.1)
2. Bulb
3. Wire Harness
4. Generator−
−
−
−
Brake warning light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Parking Brake Switch
4. Brake Fluid Level Warning Switch−
BE−36
BE−38
BE−38
COMBINATION METER
Indicator Lights:
SymptomSuspect AreaSee page
O/D OFF indicator light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. O/D OFF Switch
4. Wire Harness−
BE−36
DI−311
−
High beam indicator light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Wire Harness
4. Headlight System−
BE−36
−
BE−2
Turn indicator light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Wire Harness
4. Turn Signal and Hazard Warning System−
BE−36
−
BE−2
Shift indicator lights do not light up (ALL)
1. Bulb
2. Combination Meter Wiring Circuit
3. PNP Switch
4. Wire Harness−
BE−36
DI−306
−
Shift indicator lights do not light up (L, 2, D)
1. Bulb
2. Combination Meter Wiring Circuit
3. PNP Switch
4. Light Control Rheostat
5. Wire Harness−
BE−36
DI−306
BE−38
−
Only one shift indicator does not light up1. Bulb
2. Combination Meter Wiring Circuit−
BE−36

Downloaded from www.Manualslib.com manuals search engine Z09275
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 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.