ES–6 2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

SYSTEM DIAGRAM1. SYSTEM DIAGRAM

M

M

Injector

EFI Relay

Starter Relay

Starter

Ignition Switch

Park/Neutral Switch

Stop Light Switch

Stop Light

Air Injection Control Driver

BATT

Ignition Switch

Injector

Injector

Injector

Ignition Switch

C/OPN Relay

+BM

AIDI

AIRV

AIRPSTP

ST1-

IGSW

NSW

STA

MREL

+B

BATT

#40

#30

#20

#10

FC

ECM

A B C

Fuel Pump

A121730E01

2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–7

S

E

Crankshaft Position Sensor

Camshaft Position Sensor

Input Speed Sensor

Output Speed Sensor

Mass Air Flow Meter

Battery

Purge VSV

Combination Meter

A/C Amplifier

VG

E2G

SP2+

PRG

SP2-

NCO+

NCO-

NE-

G2+

NE+

THWO

ACT

AC1

Heated Oxygen sensor

OX1B

HT1B

A B

C

C

A121731E01

ES–8 2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

#1

#2

#3

#4

Ignition Coil with Igniter

Cruise Indicator

MILIgnition Switch

A/F Heater Relay

BATT

Air-fuel Ratio Sensor

Throttle Position Sensor

Engine Coolant Temperature Sensor

Intake Air Temperature Sensor

No.1 A/T Oil Temperature Sensor

No.2 A/T Oil Temperature Sensor

Pressure Sensor

Accelerator Pedal Position Sensor

IGF1

IGT4

EPAVPAVCPAEPA2

VPA2VCP2

IGT3

IGT2

IGT1

AIP

PI

W

E2

THO1

THOC

THA

A1A-A1A+HA1A

THW

VTA2VTA1

VC

C

VC

A121732E01

2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–9

S

E

Generator

Combination Meter (Tacho)

Cruise Control Switch

Knock Sensor

EKNK

KNK1

ALT

TACH

CCS

Inverter Relay

Tail Light Relay

Combination Meter

Airbag ECU

PS Pressure Switch

4WD Control Switch

4WD Indicator

Canister Pressure Sensor

Leak Detection Pump

Vent Valve

Canister Pump Module

4WD

VPMP

MPMP

PSW

PPMP

F/PS

SPD

ELS1

ELS2

Transponder Key ECU

IMO

IMI

D

A121733E01

ES–10 2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

M

Shift Position Switch (Park/Neutral Position Switch)

+B

Ignition Switch

Clutch Start Switch (for M/T)

DLC3TACH

VSC ECU

Bus

Throttle Actuator

Shift Solenoid Valve S2

Shift Solenoid Valve S1

Shift Solenoid Valve SLT

Shift Solenoid Valve SLU

Oil Control ValveOC1+

OC1-

SLU+

SLU-

SLT+

SLT-

S1

S2

M+

CANHCANL

TC

M-

GE01

ME01

E02

E01

E04

E03

EC

E1

L

2

3

R

D

E0M

D

A121734E01

2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–11

S

E

2. COMMUNICATION WITH OTHER COMPUTERS

HINT:Refer to CAN COMMUNICATION SYSTEM (See page CA-4).

3. COMMUNICATION SIGNALS

HINT:Refer to CAN COMMUNICATION SYSTEM (See page CA-4).

ECM

DLC3

Yaw Rate Sensor Steering Sensor

Skid Control ECU

CAN Communication Line

G037114E01

Transmitter Receiver Signal Communication Line

ECM Skid Control ECU

• Intake air temperature signal• Check mode signal• Engine rpm signal• Throttle position signal• Cruise control operation

signal• VSC prohibition requirement

signal• Shift position signal• Destination signal• Engine system malfunction

signal• Ignition timing signal

CAN

Skid Control ECU ECM

• VSC/TRC operation signal• VSC/TRC system

malfunction signal• Fuel cut requirement signal• Cruise control cancel

requirement signal• Torque requirement signal

CAN

ES–12 2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

HOW TO PROCEED WITH TROUBLESHOOTING*: Use the intelligent tester.

NEXT

NEXT

HINT:If the display indicates a communication fault in the tester, inspect the DLC3.

NEXT

HINT:Record or print DTCs (See page ES-40) and freeze frame data (See page ES-41), if necessary.

NEXT

HINT:Refer to DTC Check / Clear (See page ES-40).

NEXT

NEXT

HINT:Refer to Check Mode Procedure (See page ES-43).

NEXT

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

3 CONNECT INTELLIGENT TESTER TO DLC3*

4 CHECK DTC AND FREEZE FRAME DATA*

5 CLEAR DTC AND FREEZE FRAME DATA*

6 CONDUCT VISUAL INSPECTION

7 SET CHECK MODE DIAGNOSIS*

2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–13

S

E

HINT:If the engine does not start, perform steps 10 and 12 first.

B

A

NEXT

HINT:Refer to DTC Check / Clear (See page ES-40).

B

A

HINT:Refer to Diagnostic Trouble Code Chart (See page ES-54).

NEXT

HINT:Refer to Basic Inspection (See page ES-14).

B

8 CONFIRM PROBLEM SYMPTOMS

Result Proceed To

Malfunction does not occur A

Malfunction occurs B

GO TO STEP 10

9 SIMULATE SYMPTOMS

10 CHECK DTC*

Result Proceed To

Malfunction code A

No code B

GO TO STEP 12

11 REFER TO DTC CHART

GO TO STEP 14

12 CONDUCT BASIC INSPECTION

Result Proceed To

Malfunctioning parts not confirmed A

Malfunctioning parts confirmed B

GO TO STEP 17

ES–14 2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

A

HINT:Refer to Problem Symptoms Table (See page ES-29).

B

A

HINT:Refer to ECM Power Source Circuit (See page ES-425).

NEXT

B

A

HINT:Refer to Check for Intermittent Problems (See page ES-14).

NEXT

NEXT

13 REFER TO PROBLEM SYMPTOMS TABLE

Result Proceed To

Malfunctioning circuit confirmed A

Malfunctioning parts confirmed B

GO TO STEP 17

14 CHECK ECM POWER SOURCE CIRCUIT

15 CONDUCT CIRCUIT INSPECTION

Result Proceed To

Malfunction not confirmed A

Malfunction confirmed B

GO TO STEP 18

16 CHECK FOR INTERMITTENT PROBLEMS

GO TO STEP 18

17 CONDUCT PARTS INSPECTION

2TR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–15

S

E

NEXT

NEXT

NEXT

18 IDENTIFY PROBLEM

19 ADJUST AND/OR REPAIR

20 CONDUCT CONFIRMATION TEST

END