INDEX - In order of parts nameC-14
Wiring diagram
page Circuit diagram page Connector
No. Parts name
FFloor wiring harness (RH) and J/B
combination
164, 173,185B-29
Floor wiring harness (RH) and rear door
wiring harness (RH) combinationD-02B-160,166,171,173B-30,32
Fog lamp switchC-137B-124,127B-21,27
Front combination lamp (LH)A-39B-103,106,110,114,130,132,134,138B-7,9
Front combination lamp (RH)A-40B-103,106,111,114,130,132,135,139B-7,9
Front wiring harness (LH) and control
wiring harness combination
Front wiring harness (LH) and control
wiring harness combination
Front wiring harness (LH) and control
wiring harness combination
Front wiring harness (LH) and control
wiring harness combination
211,225,243,254B-27
Front wiring harness (LH) and instru-
ment panel wiring harness combinationC-132B-74,78,92,100,105,108,113,117,119,
123,125,128,137,141,150,154,158,
159,164,165,170,172,174,180,185,
188,189,204,205,219,227,237,247,
248,250,252,254B-21,27
Front wiring harness (LH) and instru-
ment panel wiring harness combinationC-135B-76,82,87,93,95,101,103,104,106,
107,110,111,114,115,118,122,124,127,
128,130,131,132,133,134,135,136,
138,139,140,144,145,146,148,149,
152,153,156,158,164,170,172,175,
177,181,183,185,186,187,190,191,
194,195,196,197,198,206,212,214,
220,222,228,230,238,240,256,257,
258B-21,27
Front wiring harness (RH) and instru-
ment panel wiring harness combinationC-111B-103,106,135,139,157,178,184,203,
211,217,225,233,243B-20,26
Front-ECUA-10XB-73,75,103,104,106,107,110,111,
114,115,124,127,130,131,132,133,
136,140,187,191,258B-6,8
Front-ECUA-11XB-73,104,106,107,111,115,124,127,
131,133, 136,140,186,187,190,191B-6,8
Fuel gauge unit (Sub)D-27B-148,152,156B-31,33
Fuel pressure solenoid valveB-37B-90,98B-11,15
Fuel pump and fuel gauge unit (Main)D-09B-93,101,148,152,156B-30,32
Fuel pump relay 1C-223B-54,55,87,95B-23,29
Fuel pump relay 2C-221B-54,55,87,95B-23,29
Fuel pump relay 3B-140B-93,101B-13,17
Fuel pump resistorB-141B-93,101B-13,17
INDEX - In order of parts nameC-15
Wiring diagram
page Circuit diagram page Connector
No. Parts name
GG sensor (Lateral)D-33B-200,208,213,221,229,239B-31,33
G sensor (Longitudinal)D-32B-200,208,213,221,229,239B-31,33
HHazard warning switchC-03B-136,140B-18,24
Headlamp (HI:LH)A-16B-103,106B-6,8
Headlamp (HI:RH)A-28B-103,106B-7,9
Headlamp leveling switchC-36B-131,133B-19,25
High mounted stop lampF-05B-144,145B-38,39
Horn (HI)A-23B-146B-7,8
Horn (LO)A-25B-146B-7,9
Horn relayA-05XB-73,146B-6,8
Horn switch
IIdle speed control servoB-115B-88,96B-12,16
Ignition coil 1B-114B-82,83B-12,16
Ignition coil 2B-119B-82,83B-12,16
Ignition coil relay
connection
Ignition switchC-201B-76B-22,28
Injector 1B-27B-89,97B-11,15
Injector 2B-26B-89,97B-11,15
Injector 3B-25B-89,97B-11,15
Injector 4B-24B-89,97B-11,15
Instrument panel wiring harness and
A/C wiring harness combinationC-107B-175,181B-20,26
Instrument panel wiring harness and
console wiring harness combinationD-15B-195B-31,32
Instrument panel wiring harness and
control wiring harness combinationC-128B-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
Instrument panel wiring harness and
control wiring harness combinationC-129B-79,80,83,87,89,93,95,97,101,142,
143,149,186,190,212,228,253B-21,26
Instrument panel wiring harness and
control wiring harness combinationC-130B-84,87,92,95,100,142,143,148,150,
152,154,157,175,178,198,200,201,
204,205,206,212,213,216,219,228,
229,232,235,237,252,254,255,256,
257B-21,27
INDEX - In order of parts nameC-17
Wiring diagram
page Circuit diagram page Connector
No. Parts name
IInstrument panel wiring harness and
J/B combinationC-211B-54,55,78,92,100,105,108,113,117,
119,123,125,128,137,141,150,154,
158,164,170,172,174,180,185,188,
189,204,205,219,227,237,247,248,
250,252,254B-22,28
Instrument panel wiring harness and
J/B combinationC-213B-54,55,78,82,83,84,87,92,95,100,
104,105,107,108,110,112,113,115,
116,117,119,120,121,123,125,126,
128,129,135,136,137,139,140,141,
149,150,153,154,157,158,164,170,
171,172,173,174,180,185,187,188,
189,191,192,193,195,198,200,204,
205,206,208,212,213,214,219,220,
221,222,227,228,229,230,237,238,
239,240,247, 248,250,252,254,256B-22,28
Intercooler water spray motorA-44B-256B-7,9
Intercooler water spray relayC-222B-54,55,256B-23,29
Intercooler water spray switchD-34B-257B-31,33
JJ/C (1)C-05B-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
J/C (2)C-102B-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
J/C (3)C-08B-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
J/C (4)C-26B-59,65,92,100,105,113,119,137,157,
158,170,188,194,197,201,204,205,
209,213,219,221,227,232,237,242,
247,250,252,254,258B-19,25
J/C (5)
157,187,194,197,198,214,230,248,
256B-19
J/C (5)
173,189,205,227,247,254B-25
J/C (6)C-108B-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
INDEX - In order of parts nameC-18
Wiring diagram
page Circuit diagram page Connector
No. Parts name
KKey reminder switchC-202B-253,255B-22,28
LLicence plate lamp (LH)F-13B-110,114B-38,39
Licence plate lamp (RH)F-12B-110,114B-38,39
Luggage compartment lampF-04B-119,123B-38,39
NNo connectionA-08XB-73B-6,8
No connectionA-34-B-9
No connectionB-07XB-73B-10,14
No connectionB-08XB-73B-10,14
No connectionB-10XB-73B-10,14
No connectionC-220B-54,55B-23,29
No connectionB-06XB-73B-10,14
No connectionC-225B-54,55,78B-23,29
No connection
OOil pressure switchB-20B-157B-11,15
Outside/Inside air selection damper
control motor and potentiometerC-10B-175,181B-18,24
Oxygen sensorB-34B-88,96B-11,15
Oxygen sensor (Rear)D-22B-88,96B-31,33
PParking brake switchD-23B-157,201,209,213,221,232,242B-31,33
Power steering oil pressure switchA-48B-90,98B-7,9
Power window main switchE-07B-162,163,168,169B-34,36
Power window motor (Front:LH)E-05B-162,165B-34,36
Power window motor (Front:RH)E-20B-159,168B-35,37
Power window motor (Rear:LH)E-10B-161,167B-34,36
Power window motor (Rear:RH)E-25B-160,166B-35,37
Power window relayC-224B-54,55,158,159,165B-23,29
Power window sub switch (Passenger’s
side)E-19B-159,165B-35,37
Power window sub switch (Rear:LH)E-11B-161,167B-34,36
Power window sub switch (Rear:RH)E-24B-160,166B-35,37
Pressure sensor
Proportioning valve (for ACD control)F-27B-216,224,235,245B-38,39
Proportioning valve (for AYC control)F-28B-235,245B-38,39
INDEX - In order of parts nameC-19
Wiring diagram
page Circuit diagram page Connector
No. Parts name
PPurge control solenoid valveB-23B-91,99B-11,15
RRadiator fan relayA-09XB-73,102,176,182B-6,8
Rear combination lamp (LH)F-16B-110,114,126,134,138,143,144,145B-38,39
Rear combination lamp (RH)F-09B-111,115,129,134,138,142,144,145B-38,39
Rear fog lamp relayC-219B-54,55,126,129B-23,29
Rear room lampD-05B-118,122B-30,32
Remote controlled mirror (LH)E-02B-192,193B-34,36
Remote controlled mirror (RH)E-13B-192,193B-34,36
Remote controlled mirror switchC-138B-192,193B-21,27
ResistorB-138B-89,97B-13,17
ResistorC-16B-174,180B-18,24
Roof antennaC-141B-196B-21,27
Roof wiring harness (RH) and J/B
combinationC-218B-54,55,118,119,122,123B-23,29
Room lampD-03B-118,122B-30,32
SSeat belt pretensioner (LH)D-28B-249,251B-31,33
Seat belt pretensioner (RH)D-26B-249,251B-31,33
Secondary air control solenoid valveB-142B-91,99B-13,17
Side turn signal lamp (LH)A-02B-134,138B-6,8
Side turn signal lamp (RH)A-01B-135,139B-6,8
Spare connector (for front fog lamp
relay)A-04XB-73,258B-6,8
Spare connector (for front fog lamp
switch)C-101B-258B-20,26
Spare connector (for front fog lamp)A-31B-258B-7,9
Spare connector (for radio)C-104B-196,197B-20,26
Spare connector
Spare connector
Spare connector
Spare connector
SRS-ECUC-21B-248,249,250,251B-18,24
GENERAL -How to Use Troubleshooting/Inspection Service Points00-13
INSPECTION SERVICE POINTS FOR A BLOWN
FUSE
Remove the blown fuse and measure the resistance between
the load side of the blown fuse and the earth. Set the switches
of all circuits which are connected to this fuse to a condition
of continuity. If the resistance is almost 0Ωat this time,
there is a short somewhere between these switches and the
load. If the resistance is not 0Ω, there is no short at the
present time, but a momentary short has probably caused
the fuse to blow.
The main causes of a short circuit are the following.
DHarness being clamped by the vehicle body
DDamage to the outer casing of the harness due to wear
or heat
DWater getting into the connector or circuitry
DHuman error (mistakenly shorting a circuit, etc.)
POINTS TO NOTE FOR INTERMITTENT
MALFUNCTIONS
Intermittent malfunctions often occur under certain conditions,
and if these conditions can be ascertained, determining the
cause becomes simple. In order to ascertain the conditions
under which an intermittent malfunction occurs, first ask the
customer for details about the driving conditions, weather
conditions, frequency of occurrence and trouble symptoms,
and then try to recreate the trouble symptoms. Next, ascertain
whether the reason why the trouble symptom occurred under
these conditions is due to vibration, temperature or some
other factor. If vibration is thought to be the cause, carry
out the following checks with the connectors and components
to confirm whether the trouble symptom occurs.
The objects to be checked are connectors and components
which are indicated by inspection procedures or given as
probable causes (which generates diagnosis codes or trouble
symptoms.)
DGently shake the connector up, down and to the left and
right.
DGently shake the wiring harness up, down and to the
left and right. Check the branch point of wiring harness
connector closely.
DGently rock each sensor and relay, etc. by hand.
DGently shake the wiring harness at suspensions and other
moving parts.
NOTE
If determining the cause is difficult, the flight recorder function
of the MUT-IIcan also be used.
Fuse
Battery
Load
switch
Load
Short circuit
occurrence
section
13A-2
MULTIPOINT FUEL
INJECTION (MPI)
CONTENTS
GENERAL INFORMATION 3...................
SERVICE SPECIFICATIONS 6.................
SEALANT 6..................................
SPECIAL TOOLS 7...........................
TROUBLESHOOTING 9.......................
ON-VEHICLE SERVICE 125..................
Fuel Pump Connector Disconnection
(How to Reduce the Fuel Pressure) 125...........
Fuel Pump Operation Check 125.................
Throttle Body (Throttle Valve Area)
Cleaning 126..................................
Throttle Position Sensor Adjustment 126...........
Basic Idle Speed Adjustment 127.................
Fuel Pressure Test 128..........................
Component Location 131........................
Engine Control Relay Continuity Check 132........
Fuel Pump Relay 1, 2 Continuity Check 132........Fuel Pump Relay 3 Continuity Check 132..........
Fuel Pump Resistor Check 132...................
Intake Air Temperature Sensor Check 132.........
Engine Coolant Temperature Sensor Check 133....
Throttle Position Sensor Check 134...............
Oxygen Sensor Check 134......................
Injector Check 136..............................
Resistor (for Injector) Check 138..................
Idle Speed Control Servo (Stepper Motor)
Check 138.....................................
Fuel Pressure Control Solenoid Valve Check 140...
Purge Control Solenoid Valve Check 140..........
EGR Control Solenoid Valve Check 140...........
INJECTOR 141..............................
THROTTLE BODY 143.......................
ENGINE CONTROL RESISTOR, RELAY 146....
ENGINE-ECU 147...........................
MPI -General Information13A-4
OTHER CONTROL FUNCTIONS
1. Fuel Pump Control
Turns the fuel pump relay ON so that current
is supplied to the fuel pump while the engine
is cranking or running.
2. A/C Relay Control
Turns the compressor clutch of the A/C
ON and OFF.3. Fan Motor Control
The revolutions of the radiator fan and
condenser fan are controlled in response to
the engine coolant temperature and vehicle
speed.
4. Purge Control Solenoid Valve Control
Refer to GROUP 17.
5. EGR Control Solenoid Valve Control
Refer to GROUP 17.
GENERAL SPECIFICATIONS
ItemsSpecifications
Throttle bodyThrottle bore mm60
Throttle position sensorVariable resistor type
Idle speed control servoStepper motor type
(Stepper motor type by-pass air control system with the
air volume limiter)
Engine-ECUIdentification No.E6T34874
SensorsAir flow sensorKarman vortex type
Barometric pressure sensorSemiconductor type
Intake air temperature sensorThermistor type
Engine coolant temperature sensorThermistor type
Oxygen sensorZirconia type
Vehicle speed sensorMagnetic resistive element type
Camshaft position sensorHall element type
Crank angle sensorHall element type
Detonation sensorPiezoelectric type
Power steering fluid pressure switchContact switch type
ActuatorsEngine control relay typeContact switch type
Fuel pump relay typeContact switch type
Injector type and numberElectromagnetic type, 4
Injector identification markMDL560
EGR control solenoid valveDuty cycle type solenoid valve
Purge control solenoid valveDuty cycle type solenoid valve
Fuel pressure control solenoid valveON/OFF type solenoid valve
Waste gate solenoid valveDuty cycle type solenoid valve
Secondary air control solenoid valveON/OFF type solenoid valve
Fuel pressure
regulatorRegulator pressure kPa294