2005 TOYOTA AVENSIS diagnostic

0505J±04
05±16
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to \
the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in the check mode, check the circuit f\
or the codes
listed in the table below. For details of each code, refer to the ''See page '' under the respective ''DTC No.''
in the DTC chart.
DTC No.
(See page)Detection ItemTrouble Area*1
CHK ENGMemory
P0100
(05±24)Mass Air Flow Circuit Malfunc-
tion
Open or short in mass air flow meter circuit

Mass air flow meter

ECM

P0110
(05±30)Intake Air Temperature Circuit
Malfunction
Open or short in intake air temp. sensor circuit

Intake air temp. sensor (built into mass air flow meter)

ECM

P0115
(05±34)Engine Coolant Temperature Cir-
cuit Malfunction
Open or short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0116
(05±38)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Engine coolant temperature sensor

Thermostat
P0120
(05±39)Throttle Pedal Position Sensor/
Switch ºAº Circuit Malfunction
Open or short in throttle position sensor circuit

Throttle position sensor

ECM

P0121
(05±44)Throttle Pedal Position Sensor/
Switch ºAº Circuit Range/Perfor-
mance Problem

Throttle position sensor
P0125
(05±45)Insufficient Coolant Temp. for
Closed Loop Fuel Control

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

Gas leakage on exhaust system

ECM

P0130*3
(05±54)
Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

P0133*3
(05±60)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

ECM

P0135
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 1)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM

P0136
(05±54)Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)
Open or short in heated oxygen sensor circuit

Heated oxygen sensor
P0141
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 2)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM


±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
05±17
AVENSIS REPAIR MANUAL (RM1018E)P0171*
3
(05±67)
System too Lean (Fuel Trim)
(Bank1)


Air induction system

Injector blockage

PCV hose

Mass air flow meter

Engine coolant temperature sensor

Fuel pressure

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

ECM

P0172*3
(05±67)
System too Rich (Fuel Trim)
(Bank1)

Injector leak, blockage

Mass air flow meter

Engine coolant temperature sensor

Ignition system

Fuel pressure

Open or short in heated oxygen sensor circuit

Gas leakage in exhaust system

Heated oxygen sensor

ECM

P0300*3
(05±73)
Random/Multiple Cylinder Misfire
Detected
Open or short in engine wire

Connector connection
Vac m hose connectionP0301*3
(05±73)Cylinder 1 Misfire Detected

Vacuum hose connection

PCV hose

Ignition system
P0302*3
(05±73)Cylinder 2 Misfire Detected

Injector

Fuel pressure

Mass air flow meter

P0303*3
(05±73)Cylinder 3 Misfire Detected

Mass air flow meter

Engine coolant temperature sensor

Compression pressure

Valve clearance
P0304*3
(05±73)Cylinder 4 Misfire Detected

Valve clearance

Valve timing

ECM
P0325
(05±81)Knock Sensor 1 Circuit Malfunc-
tion (Bank 1)
Open or short in knock sensor circuit

Knock sensor (under±torqued or loose)

ECM

P0335
(05±84)Crankshaft Position Sensor ºAº
Circuit Malfunction

Open or short in crankshaft position sensor circuit

Crankshaft position sensor

Crank angle sensor plate

ECM

P0340
(05±88)Camshaft Position Sensor Circuit
Malfunction

Open or short in camshaft position sensor circuit

Camshaft position sensor

Intake camshaft

Timing chain has jumped a tooth

ECM

P0420*3
(05±91)
Catalyst System Efficiency Be-
low Threshold (Bank 1)

Gas leakage in exhaust system

Heated oxygen sensor

Three±way catalytic converter

ECM

P0443
(05±94)Evaporative Emission Control
System Purge Control Vent Cir-
cuit Malfunction
Open or short in VSV for EVAP circuit

VSV for EVAP

ECM

P0500
(05±98)Vehicle Speed Sensor Malfunc-
tion

Open or short in speed sensor circuit

Speed sensor

Combination meter

ECM

Skid control ECU


05±18
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E) P0505*
3
(05±100)Idle Control System Malfunction


Open or short in ISC valve circuit

ISC valve is stuck or closed

PCV hose

A/C switch circuit

Air induction system

ECM

P1300
(05±103)Igniter Circuit Malfunction (No. 1)

Ignition system

Open or short in IGF or IGT1 circuit from No. 1 ignition coil
with igniter to ECM

No. 1 ignition coil with igniter

ECM

P1305
(05±103)Igniter Circuit Malfunction (No. 2)

Ignition system

Open or short in IGF or IGT2 circuit from No. 2 ignition coil
with igniter to ECM

No. 2 ignition coil with igniter

ECM

P1310
(05±103)Igniter Circuit Malfunction (No. 3)

Ignition system

Open or short in IGF or IGT3 circuit from No. 3 ignition coil
with igniter to ECM

No. 3 ignition coil with igniter

ECM

P1315
(05±103)Igniter Circuit Malfunction (No. 4)

Ignition system

Open or short in IGF or IGT4 circuit from No. 4 ignition coil
with igniter to ECM

No. 4 ignition coil with igniter

ECM

P1335
(05±84)Crankshaft Position Sensor Cir-
cuit Malfunction (During engine
running)
Open or short in crankshaft position sensor circuit

Crankshaft position sensor

Crank angle sensor plate

ECM


P1346
(05±111)VVT Sensor/Camshaft Position
Sensor Circuit Range/Perfor-
mance Problem (Bank 1)
Mechanical system (Timing chain has janped a tooth, chain
stretched)

ECM

P1349
(05±112)VVT System Malfunction (Bank
1)

Valve timing

OCV

VVT controller assembly

ECM

P1520*2
(05±115)
Stop Light Switch Circuit Mal-
function
Open or short in stop light switch signal circuit

Stop light switch

ECM

P1600
(05±119)ECM BATT Malfunction
Open in back up power source circuit

ECM
P1656
(05±122)OCV Circuit Malfunction (Bank
1)
Open or short in OCV circuit

OCV

ECM

*1:  ... CHK ENG is illuminated.
... CHK ENG is not illuminated.
*
2: Only for A/T models.
*
3: For European spec. only

0505N±04
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx.
C/
F)
05±4
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

0505G±04
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±1
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1ZZ±FE/3ZZ±FE)
HOW TO PROCEED WITH TROUBLESHOOTING
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS (See page 05±4)
3CONNECT THE HAND±HELD TESTER TO DLC3
HINT:
If the display indicates a communication fault in the tool, inspect DLC3.
4CHECK DTC AND FREEZE FRAME DATA(See page 05±5)
HINT:
Record or print DTC and freeze frame data, if needed.
5CLEAR DTC AND FREEZE FRAME DATA (See page 05±5)
6 VISUAL INSPECTION
7SETTING THE CHECK (TEST) MODE DIAGNOSIS (See page 05±5)
8 PROBLEM SYMPTOM CONFIRMATION
HINT:
If the engine does not start, perform steps 10 and 12 first.
AMalfunction does not occur
BMalfunction occurs
B GO TO STEP 10
A

05±2
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
9SYMPTOM SIMULATION
10DTC CHECK (See page 05±5)
AMalfunction code
BNo code
B GO TO STEP 12
A
11DTC CHART (See page 05±16)
GO TO STEP 14
12BASIC INSPECTION (See page 05±5)
AWrong parts not confirmed
BWrong parts confirmed
B GO TO STEP 17
A
13PROBLEM SYMPTOMS TABLE (See page 05±22)
AWrong circuit confirmed
BWrong parts confirmed
B GO TO STEP 17
A
14CHECK ECM POWER SOURCE CIRCUIT (See page 05±124)
15 CIRCUIT INSPECTION
AMalfunction not confirmed
BMalfunction confirmed
B GO TO STEP 18
A

±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
05±3
AVENSIS REPAIR MANUAL (RM1018E)
16CHECK FOR INTERMITTENT PROBLEMS (See page 05±5)
GO TO STEP 18
17 PARTS INSPECTION
18 IDENTIFICATION OF PROBLEM
19 ADJUSTMENT, REPAIR
20 CONFIRMATION TEST
END

± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
05±73
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0300 RANDOM/MULTIPLE CYLINDER MISFIRE
DETECTED
DTC P0301 CYLINDER 1 MISFIRE DETECTED
DTC P0302 CYLINDER 2 MISFIRE DETECTED
DTC P0303 CYLINDER 3 MISFIRE DETECTED
DTC P0304 CYLINDER 4 MISFIRE DETECTED
CIRCUIT DESCRIPTION
Misfire: The ECM uses the crankshaft position sensor and camshaft position sensor to monitor changes in
the crankshaft rotation of each cylinder.
The ECM counts the number of times from the engine speed change rate, indicating that misfire has oc-
curred. When the misfire rate equals to or exceeds the count, indicating that the engine condition has deteri-
orated, the CHK ENG is illuminated.
If the misfire rate is high enough and the driving conditions causes the catalyst to overheat, the CHK ENG
blinks when the misfire occurs.
HINT:

For any particular 200 revolutions of engine, misfiring which could result in overheating of catalyst is
detected. This cause CHK ENG to blink (1 trip detection logic).

For any particular 1,000 revolutions of engine, misfiring which could result in a deterioration of emis-
sions is detected. This cause CHK ENG to illuminate (2 trip detection logic).
DTC No.DTC Detecting ConditionTrouble Area
P0300Misfiring of random cylinders is detected

Open or short in engine wire

Connector connection

Vacuum hose connection

PCV hose

Ignition system
P0301
P0302Misfiring of each cylinder is detected
Ignition system

Injector

Fuel pressure

Mass air flow meter

Engine coolant temperature sensor
P0302
P0303
P0304Misfiring of each cylinder is detectedEngine coolant tem erature sensor

Compression pressure

Valve clearance

Valve timing

ECM
HINT:
When 2 or more codes for a misfiring cylinder are recorded repeatedly but no random misfire code is re-
corded, it is indicated that the misfires were detected and recorded at different times.
05C6B±01