Contents

Basic inspection

Diagnosis and repair workflow

• Trouble diagnosis introduction

Inspection and adjustment

• Basic inspection
• Idle speed and ignition timing check
• Procedure after replacing ECM
• VIN registration
• Accelerator pedal released position learning
• Throttle valve closed position learning
• Ethanol mixture ratio adaptation (flexible fuel vehicle)
• Idle air volume learning

Function diagnosis

Engine control system

• System diagram
• Engine control component parts location

Multiport fuel injection system

• System description

Electric ignition system

• System description
• Air conditioning cut control

Input / output signal chart

• System description

Automatic speed control device (ASCD)

• System description
• Component description

CAN communication

• System description
• Description

Evaporative emission system

• Description

Intake valve timing control

• Description

ON board diagnostic (OBD) system

• Introduction
• Two trip detection logic
• Emission-related diagnostic information
• Malfunction indicator lamp (MIL)
• OBD system operation chart
• Consult-III function (engine)
• Generic scan tool (GST) function

Component diagnosis

Trouble diagnosis - specification value

• Description
• Testing condition
• Inspection procedure
• Diagnosis procedure

Power supply and ground circuit

• Diagnosis procedure
• Ground inspection

U1000, U1001 CAN COMM circuit

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0011, P0021 IVT CONTROL

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0031, P0032, P0051, P0052 A/F sensor 1 heater

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0037, P0038, P0057, P0058 HO2S2 heater

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0075, P0081 IVT control solenoid valve

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0101 MAF sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0102, P0103 MAF sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0112, P0113 IAT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0116 ECT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0117, P0118 ECT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0122, P0123 TP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0125 ECT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0127 IAT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0128 thermostat function

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0130, P0150 A/F sensor 1

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure

P0131, P0151 A/F sensor 1

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0132, P0152 A/F sensor 1

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0133, P0153 A/F sensor 1

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0137, P0157 HO2S2

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0138, P0158 HO2S2

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0139, P0159 HO2S2

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0171, P0174 fuel injection system function

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0172, P0175 fuel injection system function

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0181 FTT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0182, P0183 FTT sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0222, P0223 APP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 misfire

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0327, P0328, P0332, P0333 KS

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0335 CKP sensor (POS)

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0340 CMP sensor (phase)

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0420, P0430 three way catalyst function

• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure

P0441 EVAP control system

• System description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0442 EVAP control system

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0443 EVAP canister purge volume control solenoid valve

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0444, P0445 EVAP canister purge volume control solenoid valve

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0447 EVAP canister vent control valve

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0448 EVAP canister vent control valve

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0451 EVAP control system pressure sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0452 EVAP control system pressure sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0453 EVAP control system pressure sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0455 EVAP control system

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0456 EVAP control system

• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure
• Component inspection

P0460 fuel level sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0461 fuel level sensor

• Component description
• On board diagnosis logic
• Overall function check
• Diagnosis procedure

P0462, P0463 fuel level sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0500 VSS

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure

P0506 ISC system

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0507 ISC system

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0550 PSP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P0603 ECM power supply

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0605 ECM

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0607 ECM

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0643 sensor power supply

• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P0850 PNP switch

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Overall function check
• Diagnosis procedure

P1140, P1145 IVT control position sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1148, P1168 closed loop control

• On board diagnosis logic

P1211 TCS control unit

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1212 TCS communication line

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1217 engine over temperature

• On board diagnosis logic
• Overall function check
• Diagnosis procedure
• Main causes of overheating

P1220 fuel pump control module (FPCM)

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1225 TP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1226 TP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1421 cold start control

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1550 battery current sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1551, P1552 battery current sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1553 battery current sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1554 battery current sensor

• Component description
• On board diagnosis logic
• Overall function check
• Diagnosis procedure
• Component inspection

P1564 ASCD steering switch

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1572 ASCD brake switch

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P1574 ASCD vehicle speed sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P1805 brake switch

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2100, P2103 throttle control motor relay

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P2101 electric throttle control function

• Description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2118 throttle control motor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2119 electric throttle control actuator

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

P2122, P2123 APP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2127, P2128 APP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2135 TP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2138 APP sensor

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure
• Component inspection

P2A00, P2A03 A/F sensor 1

• Component description
• On board diagnosis logic
• DTC confirmation procedure
• Diagnosis procedure

ASCD brake switch

• Component description
• Diagnosis procedure
• Component inspection

ASCD indicator

• Component description
• Diagnosis procedure

Cooling fan

• Diagnosis procedure
• Component inspection

Electrical load signal

• Description
• Diagnosis procedure

Fuel injector

• Component description
• Diagnosis procedure
• Component inspection

Fuel pump

• Description
• Diagnosis procedure
• Component inspection

Ignition signal

• Component description
• Diagnosis procedure
• Component inspection

ON board refueling vapor recovery (ORVR)

• System description
• Diagnosis procedure
• Component inspection

Positive crankcase ventilation

• Description
• Component inspection

Refrigerant pressure sensor

• Component description
• Diagnosis procedure

ECU diagnosis

ECM

• Consult-III reference value in data monitor mode
• ECM harness connector terminal layout
• ECM terminal and reference value

Wiring Diagram - engine control system

• Fail-safe chart
• DTC inspection priority chart
• DTC index
• Emission-related diagnostic information

Symptom diagnosis

Engine control system symptoms

Symptom matrix chart

• Normal operating condition

Fuel cut control (at no load and high engine speed)

Precautions

• Precaution for supplemental restraint system (SRS) "Air bag" and "Seat belt pre-tensioner"
• On board diagnosis (OBD) system of engine and A/T
• Precaution

Preparation

• Special service tool
• Commercial service tool

On-vehicle maintenance

Fuel pressure

• Fuel pressure check

EVAP leak check

• How to detect fuel vapor leakage

On-vehicle repair

EVAP canister

• Component inspection
• Removal and installation

Intake valve timing control

• Intake valve timing control solenoid valve (LH)
• Intake valve timing control solenoid valve (RH)
• Intake valve timing control position sensor (LH)
• Intake valve timing control position sensor (RH)
• Camshaft position sensor (phase)

Service data and specifications (SDS)

• Fuel pressure
• Idle speed and ignition timing
• Calculated load value
• Mass air flow sensor
• Intake air temperature sensor
• Engine coolant temperature sensor
• A/F sensor 1 heater
• Heated oxygen sensor 2 heater
• Crankshaft position sensor (POS)
• Camshaft position sensor (phase)
• Throttle control motor
• Fuel injector
• Fuel pump