Page 196 of 1449
CIRCUIT DIAGRAMSB-98
ENGINE CONTROL SYSTEM (CONTINUED)
Page 198 of 1449
CIRCUIT DIAGRAMSB-100
ENGINE CONTROL SYSTEM (CONTINUED)
Page 245 of 1449

CIRCUIT DIAGRAMSB-147
METER AND GAUGE (See P.B-148,152.)
OPERATION
DWhen the ignition switch is at the “ON” position,
the fuel gauge is activated.
DWhen there is much fuel, the unit’s resistance
is small and the current flowing in the circuit
is great, so the gauge’s indicator indicates in
the “Full” area.
DWhen there is little fuel, the unit’s resistance
is high and the current flowing in the circuit
is small, so the gauge’s indicator indicates in
the “Empty” area.
DWhen the ignition switch is at the “ON” position,
the engine coolant temperature gauge is
activated.
DWhen the engine coolant temperature is high,
the unit’s resistance is low and there is a great
flow of current in the circuit, so the gauge’s
indicator indicates in the “H” area.
DWhen the engine coolant temperature is low,
the unit’s resistance is high and there is a small
flow of current in the circuit, so the gauge’s
indicator indicates in the “C” area.TROUBLESHOOTING HINTS
1. Fuel gauge does not operate, or registers
incorrectly.
(1) The fuel gauge indicates “F” when the fuel
gauge unit (sub) connector is disconnected
and the “1” terminal is earthed.
DCheck fuel gauge.
2. Engine coolant temperature gauge does not
operate, or registers incorrectly.
(1) When the engine coolant temperature
gauge is earthed with its connector
unplugged, it registers “H”.
DCheck engine coolant temperature
gauge unit.
Page 253 of 1449

CIRCUIT DIAGRAMSB-155
FUEL WARNING LAMP (See P.B-156.)
OIL PRESSURE WARNING LAMP (See P.B-157.)
BRAKE WARNING LAMP (See P.B-157.)
OPERATION
DWhen the ignition switch is at the “ON” position,
the fuel gauge unit resistance is small when
the fuel level is high, and the fuel gauge unit
resistance is large when the fuel level is low.
When this resistance rises above a specified
value, the fuel warning lamp illuminates to notify
the driver that the fuel level is low.
DWhen the lubrication system fails after engine
starting, resulting in the oil pressure failing to
build up, the oil pressure switch turns on
causing the oil pressure warning lamp to
illuminate.
DWhen the brake fluid level goes down below
a predetermined level with the ignition switch
in the “ON” position, the brake fluid level switch
is activated or the parking brake switch is turned
on, causing the brake warning lamp to
illuminate.TROUBLESHOOTING HINTS
1. No warning lamps illuminate.
DCheck multi-purpose fuse No.(2).
2. Some warning lamps do not illuminate.
DCheck lamp valve.
DCheck the switches and the gauge unit.
Page 358 of 1449

INDEX - In order of connector No.C-2
Wiring diagram
page Circuit diagram page Parts name Connector
No.
AA-45Condenser fan motorB-177,183B-7,9
A-46Condenser fan motorB-177,183B-7,9
A-47A/C compressorB-178,184B-7,9
A-48Power steering oil pressure switchB-90,98B-7,9
BB-01Windshield wiper motorB-186,190B-10,14
B-02Throttle position sensorB-89,97,215,223,231,241B-10,14
B-03Vehicle speed sensorB-92,100,150,154,197B-10,14
B-04Brake fluid level switchB-157B-10,14
B-05XEngine speed detection connectorB-73,82,83,90,98B-10,14
B-06XNo connectionB-73B-10,14
B-07XNo connectionB-73B-10,14
B-08XNo connectionB-73B-10,14
B-09XIgnition coil relay or no
connection B-73,83B-10,14
B-10XNo connectionB-73B-10,14
B-11XEngine control relayB-73,86,94,252,254B-10,14
B-12XA/C compressor relayB-73,178,184B-10,14
B-14Control wiring harness and battery
wiring harness combinationB-79,84,91,99,157B-10,14
B-18StarterB-79B-11,15
B-19StarterB-79B-11,15
B-20Oil pressure switchB-157B-11,15
B-21AlternatorB-84B-11,15
B-22AlternatorB-84B-11,15
B-23Purge control solenoid valveB-91,99B-11,15
B-24Injector 4B-89,97B-11,15
B-25Injector 3B-89,97B-11,15
B-26Injector 2B-89,97B-11,15
B-27Injector 1B-89,97B-11,15
B-31Air flow sensorB-90,98B-11,15
B-34Oxygen sensorB-88,96B-11,15
B-36Waste gate solenoid valveB-91,99B-11,15
B-37Fuel pressure solenoid valveB-90,98B-11,15
Page 359 of 1449

INDEX - In order of connector No.C-3
Wiring diagram
page Circuit diagram page Parts name Connector
No.
BB-108Back-up lamp switchB-142,143B-12,16
B-110Engine coolant temperature gauge unitB-148,152B-12,16
B-112EGR solenoid valveB-91,99B-12,16
B-114Ignition coil 1B-82,83B-12,16
B-115Idle speed control servoB-88,96B-12,16
B-116Camshaft position sensorB-88,96B-12,16
B-118Engine coolant temperature sensorB-89,97B-12,16
B-119Ignition coil 2B-82,83B-12,16
B-121Crank angle sensorB-88,96B-13,16
B-122Detonation sensorB-89,97B-13,17
B-123ABS-ECUB-198,200,201,202,203,204,205,206,
208,209,210,211,229,232,233,239,
242,243B-13,17
B-138ResistorB-89,97B-13,17
B-139Electric pump relay B-216,224,234,244B-13,17
B-140Fuel pump relay 3B-93,101B-13,17
B-141Fuel pump resistorB-93,101B-13,17
B-142Secondary air control solenoid valveB-91,99B-13,17
CC-01Combination meterB-84,87,95,103,106,118,122,126,129,
135,139,148,149,152,153,156,157,
198,206,214,222,230,240,248,250,
256, 258B-18,24
C-02Combination meterB-110,115,118,122,126,129,135,139,
148,149,152,153,156,157,198,206,
248, 250,256,258B-18,24
C-03Hazard warning switchB-136,140B-18,24
C-04ClockB-194B-18,24
C-05J/C (1)B-56,62,93,101,104,107,111,112,115,
116,118,122,124,125,127,128,131,
133,136,137,140,141,148,152,153,
156,158,164,170,172,175,181,185,
187,191,194,195,196,197,212,214,
220,222,228,230,238,240,257B-18,24
C-08J/C (3)B-58,64,95,104,105,107,108,112,113,
116,117,119,123,124,125,126,127,
128,129,131,133,136,137,140,141,
149,153,159,164,165,171,172,173,
175,180,181,185,187,188,189,191,
193,194,195,202,210,214,218,222,
226,227,230,236,240,246,247,253,
255,257,258B-18,24
Page 361 of 1449

INDEX - In order of connector No.C-5
Wiring diagram
page Circuit diagram page Parts name Connector
No.
CC-46Control wiring harness and floor wiring
harness (LH) combination
B-224,244B-25
C-101Spare connector (for front fog lamp
switch)B-258B-20,26
C-102J/C (2)B-57,63,87,92,104,105,107,111,113,
115,119,124,126,127,131,136,140,
143,154,158,163,169,170,175,181,
187,188,191,192,202,204,210,218,
219,226,236,237,246,248,252,256,
258B-20,26
C-103Stop lamp switchB-144,145,198,206,212,220,228,238B-20,26
C-104Spare connector (for radio)B-196,197B-20,26
C-107Instrument panel wiring harness and
A/C wiring harness combinationB-175,181B-20,26
C-108J/C (6)B-61,67,82,83,86,88,90,92,94,96,98,
100,102,149,153,176,182,198,204,
205,206,212,215,219,223,228,231,
237,241,252,253,254,255B-20,26
C-109Air bag module (squib)
side>B-249,251B-20,26
C-110Instrument panel wiring harness and
front door wiring harness (RH) com-
binationB-159,168,169,170,171,172,192,193,
196B-20,26
C-111Front wiring harness (RH) and instru-
ment panel wiring harness combinationB-103,106,135,139,157,178,184,203,
211,217,225,233,243B-20,26
C-112Instrument panel wiring harness and
floor wiring harness (RH) combinationB-111,120,134,142,143,144,145,159,
160,165,166,171,186,190,197,249,
251B-20,26
C-115Engine-ECUB-87,88,89,90,91,92,93,95,96,97,98,
99,100,101,215,223,231,241,257B-20,26
C-118Engine-ECUB-82,83,88,90,91,92,93,96,98,99,100,
101,149,153,252,254,256B-20,26
C-122Engine-ECUB-84,86,87,90,91,93,94,95,98,99,101,
177,178,183,184,252,254,256,257B-20,26
C-126Engine-ECUB-82,83,86,88,89,90,91,93,94,96,97,
98,99, 101,102,178,184B-20,26
C-128Instrument panel wiring harness and
control wiring harness combinationB-153,181,184,198,200,202,203,205,
206,208,209,211,213,214,216,217,
218,229,230,233,234,235,236,239,
242,243B-21,26
C-129Instrument panel wiring harness and
control wiring harness combinationB-79,80,83,87,89,93,95,97,101,142,
143,149,186,190,212,228,253B-21,26
Page 369 of 1449

INDEX - In order of parts nameC-13
Wiring diagram
page Circuit diagram page Connector
No. Parts name
DDoor switch (Rear:LH)D-08B-120,121B-30,32
Door switch (Rear:RH)D-06B-120,121B-30,32
Dual pressure switchA-36B-178,184B-7,9
EEGR solenoid valveB-112B-91,99B-12,16
Electric pump F-23B-216,224,234,244B-38,39
Electric pump relay B-139B-216,224,234,244B-13,17
Engine control relayB-11XB-73,86,94,252,254B-10,14
Engine coolant temperature gauge unitB-110B-148,152B-12,16
Engine coolant temperature sensorB-118B-89,97B-12,16
Engine speed detection connectorB-05XB-73,82,83,90,98B-10,14
Engine-ECUC-115B-87,88,89,90,91,92,93,95,96,97,98,
99,100,101,215,223,231,241,257B-20,26
Engine-ECUC-118B-82,83,88,90,91,92,93,96,98,99,100,
101,149,153,252,254,256B-20,26
Engine-ECUC-122B-84,86,87,90,91,93,94,95,98,99,101,
177,178,183,184,252,254,256,257B-20,26
Engine-ECUC-126B-82,83,86,88,89,90,91,93,94,96,97,
98,99, 101,102,178,184B-20,26
ETACS-ECUC-226B-54,55,105,108,112,113,116,117,118,
119,120,121,122,123,125,126,128,
129,134,136,137,138,140,141,158,
164,165, 170,171,172,173,188,189B-23,29
ETACS-ECUC-227B-125,128,170,172B-23,29
ETACS-ECUC-228B-105,108,112,113,116,117,118,119,
122,123,125,126,128,129,136,137,
140,141,158,159,164,165,170,171,
172,173, 188,189,258B-23,29
FFan controllerA-21B-102,176,182B-7,8
Floor wiring harness (LH) and 4WD
wiring harness combination F-24B-216,224,234,235,244,245B-38,39
Floor wiring harness (LH) and bumper
wiring harness combinationF-14B-110,114B-38,39
Floor wiring harness (LH) and J/B
combination C-216B-54,55,105,110,112,119,120,134,
158,171,185B-23
Floor wiring harness (LH) and rear door
wiring harness (LH) combinationD-12B-161,167,171,173B-30,32
Floor wiring harness (RH) and fuel
wiring harness combinationD-29B-93,101B-31,33
Floor wiring harness (RH) and fuel
wiring harness combinationD-30B-93,101,148,152,156,203,211,217,
225,233,243B-31,33