2005 TOYOTA AVENSIS Circuit

05±232
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0351/14 IGNITION COIL ºAº PRIMARY/SECONDARY
CIRCUIT
DTC P0352/15 IGNITION COIL ºBº PRIMARY/SECONDARY
CIRCUIT
DTC P0353/14 IGNITION COIL ºCº PRIMARY/SECONDARY
CIRCUIT
DTC P0354/15 IGNITION COIL ºDº PRIMARY/SECONDARY
CIRCUIT
CIRCUIT DESCRIPTION
HINT:

These DTCs indicate a malfunction related to primary circuit.

If DTC P0351/14 is displayed, check No.1 ignition coil with igniter circuit.

If DTC P0352/15 is displayed, check No.2 ignition coil with igniter circuit.

If DTC P0353/14 is displayed, check No.3 ignition coil with igniter circuit.

If DTC P0354/15 is displayed, check No.4 ignition coil with igniter circuit.
A Direct Ignition System (DIS) has been adopted. The DIS improves the ignition timing accuracy, reduces
high±voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor.
The DIS is a 1±cylinder ignition system which ignites one cylinder with one ignition coil. In the 1±cylinder
ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated
in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the
center electrode to the ground electrode.
The ECM determines the ignition timing and outputs the ignition (IGT) signals for each cylinder. Based on
the IGT signals, the power transistors in the igniter cut off the current to the primary coil in the ignition coil
is supplied to the spark plug that is connected to the end of the secondary coil. At the same time, the igniter
also sends an ignition confirmation (IGF) signal as a fail±safe measure to the ECM.
05C72±01

A73818
Crankshaft
Position
Sensor
Camshaft
Position
Sensor
Various
SensorIGT1
IGF
IGT2
IGT3
IGT4 ECM
IgniterFrom Battery
Ignition Coil
TA C
To Tachometer
No.2 Ignition
Coil with Igniter
No.3 Ignition
Coil with Igniter
No.4 Ignition
Coil with IgniterNo.1 Ignition Coil with Igniter
Spark Plug
No.1 Cylinder
No.4 Cylinder No.2 Cylinder
No.3 Cylinder
A63956
CH1
(IGT1 to 4)
CH2
(IGF)
GND
GND
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±233
AVENSIS REPAIR MANUAL (RM1018E)DTC No.
DTC Detection ConditionTrouble Area
P0351/14
P0352/15
P0353/14
P0354/15
No IGF signal to ECM while engine is running

Ignition system

Open or short in IGF and IGT1 to 4 circuit from ignition coil
with igniter to ECM

No. 1 to 4 ignition coil with igniter

IG2 relay

ECM
Reference: Inspection using the oscilloscope.
During cranking or idling, check the waveform between termi-
nals IGT1 to IGT4 and E1, and IGF and E1 of the E4 and ECM
connectors.

A18294
IGT4(+)IGT3(+)IGT2(+)IGT1(+)
ECM Connector
E1(±)
E13E12
A54393
+B (+)GND (±)
Ignition Coil and Igniter Connector
Wire Harness Side
I1
I2I3I4
B16200
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±237
AVENSIS REPAIR MANUAL (RM1018E)
6INSPECT ECM(IGT1, IGT2, IGT3 AND IGT4 VOLTAGE)
(a)Disconnect the I1, I2, I3 or I4 ignition coil and igniter con-
nector.
(b)Measure the voltage between the terminals of the E12 and E13 ECM connectors when the engine is cranked.
Standard:
Symbols (Terminal No.)Specified condition
IGT1 (E13±8) ± E1 (E12±7)
IGT2 (E13±9) ± E1 (E12±7)45VormoreIGT3 (E13±10) ± E1 (E12±7)4.5 V or more
IGT4 (E13±11) ± E1 (E12±7)
NGCHECK AND REPLACE ECM (See page 01±32)
OK
7 INSPECT IGNITION COIL ASSY(POWER SOUSE CIRCUIT)
(a) Disconnect the I1, I2, I3 or I4 ignition coil and igniter con- nector.
(b) Turn the ignition switch ON position.
(c) Measure the voltage between the terminal of the wire har- ness side connector and body ground.
Standard:
Symbols (Terminal No.)Specified condition
+B (I1±1) ± GND (I1±4)
+B (I2±1) ± GND (I2±4)9to14V+B (I3±1) ± GND (I3±4)9 to 14 V
+B (I4±1) ± GND (I4±4)
OK REPLACE IGNITION COIL ASSY
NG
8 INSPECT IG2 RELAY
(a) Remove the IG2 relay from the engine room R/B No.4.
(b) Inspect the IG2 relay. Standard:
Terminal No.Specified condition
1 ± 2Continuity
No Continuity
3 ± 5Continuity
(Apply battery voltage Terminals 1 and 2)
NG REPLACE IG2 RELAY
OK

A66267
IG2 Wire Harness Side
Ignition Switch Connector
I13
A79103
Driver Side J/B
IGN Fuse12

A79064
Engine Room R/B No.4
IG2 Relay
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±239
AVENSIS REPAIR MANUAL (RM1018E)
11 CHECK HARNESS AND CONNECTOR(IGNITION SWITCH ± IG2 RELAY)
(a) Disconnect the battery negative (±) terminal.
(b) Disconnect the ignition switch connector.
(c) Remove the IGN fuse from the driver side J/B.
(d) Remove the IG2 relay from the engine room R/B No.4.
(e) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
IG2 (I13±6) ± IGN fuse (1)ContinuityIGN fuse (2) ± IG2 relay (1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
IG2 (I13±6) or IGN fuse (1) ± Body groundNo continuityIGN fuse (2) or IG2 relay (1) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE POWER SOURCE CIRCUIT

A63955
GND CH1
(G2+)
CH2
(NE+)GND 05±226
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0335/12 CRANKSHAFT POSITION SENSOR ºAº
CIRCUIT
DTC P0335/13 CRANKSHAFT POSITION SENSOR ºAº
CIRCUIT
DTC P0339/13 CRANKSHAFT POSITION SENSOR ºAº
CIRCUIT INTERMITTENT
CIRCUIT DESCRIPTION
The crankshaft position sensor (NE signal) consists of a magnet, iron core and pickup coil.
The NE signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The
NE signal sensor generates 34 signals at every engine revolution. The ECM detects the crankshaft angle
and the engine revolution based on the NE signal, and the cylinder and the angle of the VVT based on the
combination of the G and NE signal.
DTC No.DTC Detection ConditionTrouble Area
P0335/12No crankshaft position sensor signal to ECM during cranking
(2 trip detection logic)
P0335/13No crankshaft position sensor signal to ECM with engine
speed 600 rpm or more (1 trip detection logic)

Open or short in crankshaft position sensor circuit
P0339/13
In condition (a), (b) and (c), when no crankshaft position sen-
sor (NE) signal is input for 0.05 sec. or more.
(a) Engine revolution 1,000 rpm or more
(b) STA signal is OFF
(c) 3 sec. or more has lapsed after STA signal is switched from
ON to OFF.
Crankshaft position sensor

Signal plate (crankshaft)

ECM
Reference: Inspection using the oscilloscope.
HINT:
The correct waveform is as shown on the left.
ItemContents
TerminalCH1: G2+ ± NE±
CH2: NE+ ± NE±
Equipment Set5V/DIV, 20ms/DIV
ConditionDuring cranking or idling
05C70±01



A05134
KNK Signal Waveform 05±222
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0325/52 KNOCK SENSOR 1 CIRCUIT (BANK 1 OR
SINGLE SENSOR)
DTC P0327/52 KNOCK SENSOR 1 CIRCUIT LOW INPUT
(BANK 1 OR SINGLE SENSOR)
DTC P0328/52 KNOCK SENSOR 1 CIRCUIT HIGH INPUT
(BANK 1 OR SINGLE SENSOR)
CIRCUIT DESCRIPTION
A flat type knock sensor (non±resonant type) has the structure that can detect the vibration in a wider band
of frequency from about 6 kHz to 15 kHz and has the following features.
Knock sensors are fitted on the cylinder block to detect the engine knocking.
Sensor contains a piezoelectric element which generates a voltage when it becomes deformed, which oc-
curs when the cylinder block vibrates due to knocking. If engine knocking occurs, the ignition timing is re-
tarded to suppress it.
DTC No.DTC Detection ConditionTrouble Area
P0325/52Output voltage of the knock sensor 1 decreases beyond a
threshold. (Threshold varies according to an engine speed.)
Knock sensor 1

Knock sensor 1 (under±torqued or loose)

ECM
P0327/52Output voltage the knock sensor 1 is 0.5 V or less.

Short in knock sensor 1 circuit

Knock sensor 1

ECM
P0328/52Output voltage the knock sensor 1 is 4.5 V or more.

Open in knock sensor 1 circuit

Knock sensor 1

ECM
Reference:
The correct waveform is as shown.
ItemContents
TerminalKNK1 ± EKNK
Equipment Set0.01 to 10 V/ DIV,
0.01 to 10 msec./ DIV
ConditionAfter warming up the engine,
keep the engine speed 4,000 rpm.
05C6Z±01

05CDV±01
A76858
Ignition Coil Assy
Camshaft Position Sensor VSV for EVAP
Combination Meter
DLC3
VSV for Intake Air Control ValveFuel Pump ECM
Knock Sensor Camshaft Timing Oil Control Valve
(OCV)
Injector
Crankshaft Position
Sensor
Park/Neutral Position Switch
(Only for A/T Models)Engine Coolant
Temperature Sensor
Mass Air Flow Meter
Throttle Body Assy
Accelerator Pedal Assy
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Circuit Opening Relay
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Heated Oxygen Sensor
(Bank 2 Sensor 1)
Heated Oxygen Sensor
(Bank 1 Sensor 1)
Manifold Absolute Pressure Sensor
Fuel Pump (For High Pressure)
Engine Room R/B No. 1Engine Room R/B No. 4Injector Driver (EDU)
Brake Booster
Pressure Sensor
Fuel Pressure Sensor
(For Low Pressure)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±317
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

05CID±01
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±309
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your readings 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.



\f  \b
 *1
CHK ENG 
P0010
(05±322)Camshaft Position ºAº Actuator
Circuit (Bank 1)
Open or short in OCV circuit

OCV

ECM

P0011
(05±325)Camshaft Position ºAº ±Timing
Over± Advanced or System Per-
formance (Bank 1)
Valve timing

OCV

VVT controller assembly

P0012
(05±325)Camshaft Position ºAº ±Timing
Over± Retarded (Bank 1)
VVT controller assembly

ECM

P0016
(05±329)Crankshaft Position ± Camshaft
Position Correlation (Bank 1
Sensor A)
Mechanical system (Timing chain has jumped a tooth, chain
stretched)

ECM

P0031
(05±330)Oxygen Sensor Heater Circuit
Low (Bank 1 Sensor 1)

Open in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

EFI relay

EFI fuse

EFI No. 2 fuse

ECM

P0032
(05±330)Oxygen Sensor Heater Circuit
High (Bank 1 Sensor 1)
Short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM

P0037
(05±330)Oxygen Sensor Heater Control
Circuit Low (Bank 1 Sensor 2)
Same as DTC No. P0031
P0038
(05±330)Oxygen Sensor Heater Control
Circuit High (Bank 1 Sensor 2)
Same as DTC No. P0032
P0051
(05±330)Oxygen Sensor Heater Circuit
Low (Bank 2 Sensor 1)
Same as DTC No. P0031
P0052
(05±330)Oxygen Sensor Heater Circuit
High (Bank 2 Sensor 1)
Same as DTC No. P0032
P0057
(05±330)Oxygen Sensor Heater Control
Circuit Low (Bank 2 Sensor 2)
Same as DTC No. P0031
P0058
(05±330)Oxygen Sensor Heater Control
Circuit High (Bank 2 Sensor 2)
Same as DTC No. P0032
P0100
(05±336)Mass or volume Air Flow Circuit
Ohti ifltiit

P0102
(05±336)Mass or volume Air Flow Circuit
Low Input
Open or short in mass air flow meter circuit

Mass air flow meter

ECM

P0103
(05±336)Mass or volume Air Flow Circuit
High Input
ECM

P0105
(05±342)Manifold Absolute Pressure/
Barometric Pressure Circuit
P0107
(05±342)Manifold Absolute Pressure/
Barometric Pressure Circuit Low
Input
Open or short in manifold absolute pressure sensor circuit

Manifold absolute pressure sensor

ECM

P0108
(05±342)Manifold Absolute Pressure/
Barometric Pressure Circuit High
Input
ECM