TOYOTA AVENSIS 2005 Service Repair Manual

A18294
SPD (+)E1 (±)ECM Connector
E12 E10
A62954
Turn Wheel
4.5±5.5V
0V
05±242
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
2INSPECT ECM
(a)Shift the lever to the neutral position.
(b)Jack up the vehicle.
(c)Turn the ignition switch ON.
(d)Measure the voltage between the terminals of the E10 and E12 ECM connectors as the wheel is turned slowly.
Standard:
Symbols (Terminal No.)Specified condition
SPD (E10±17) ± E1 (E12±7)Generated intermittently
HINT:
The output voltage should fluctuate up and down similarly to the
diagram on the left when the wheel is turned slowly.
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)

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.

A76873
8
IGF IGT2 IGT1
IGT3 E13
IGT4 I1
Ignition Coil and
Igniter No. 1
P R±W
IGNW±R IE4
LG±B
ECR±B
L±YE13
E13
E13
E139
1110
13 I2
Ignition Coil and
Igniter No. 2
I3
Ignition Coil and
Igniter No. 3
I4
Ignition Coil and
Igniter No. 4W±R
W±RW±R 3
2
14
1
42
2 3
3
3 1
4
4 1 R±B R±B
R±B R±B R±B B±R
W±B
W±B
W±B
W±BW±B W±BW±B
1
N2
Noise Filter
(Ignition)R±B B±R 1
3 Engine Room R/B No. 1 and
Engine Room J/B No.1
B±G 1A
2
B±G
FL MAIN
Battery Engine Room
J/B No.4I13
Ignition Switch
6
AM2 IG24
(LHD)IP11
(RHD)
B±R
1
1
1 1 2
2 AM2IG2
1B±R
BB
5144
44DH 2
DL 16
IG2
Relay
4A 1
4B 1Engine
Room
R/B No.4
EA1
8R±B
R±BW±B
EF B±R2ECM
W±R
W±R Driver
Side J/B 05±234
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

A65743
E13
ECM ConnectorIGF
A54393
Wire Harness Side
Ignition Coil and Igniter Connector
IGF I1
I2I3I4
A18294ECM Connector
E1(±)
E13E12
IGF(+)
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±235
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lean or rich, etc. at the time of the mal-
function.
1 CHECK SPARK PLUG AND SPARK OF MISFIRING CYLINDER
NG Go to step 4
OK
2 CHECK HARNESS AND CONNECTOR(ECM ± IGNITION COIL)
(a) Disconnect the I1, I2, I3 or I4 ignition coil and igniter con-
nector.
(b) Disconnect the E13 ECM connector.
(c) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
IGF (I1±2) ± IGF (E13±13)
IGF (I2±2) ± IGF (E13±13)ContinuityIGF (I3±2) ± IGF (E13±13)Continuity
IGF (I4±2) ± IGF (E13±13)
Standard (Check for short):
Symbols (Terminal No.)Specified condition
IGF (I1±2) or IGF (E13±13) ± Body ground
IGF (I2±2) or IGF (E13±13) ± Body groundNo continuityIGF (I3±2) or IGF (E13±13) ± Body groundNo continuity
IGF (I4±2) or IGF (E13±13) ± Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
3 INSPECT ECM
(a) Disconnect the ignition coil and igniter connector.
(b) Turn the ignition switch ON.
(c) Measure the voltage between the terminals of the E12
and E13 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
IGF (E13±13) ± E1 (E12±7)4.5 to 5.5 V

A65743
E13ECM Connector
IGT4IGT3IGT2IGT1
A54393
IGT
Wire Harness Side
Ignition Coil and Igniter Connector
I1
I2I3I4
A18294
IGT4(+)IGT3(+)IGT2(+)IGT1(+)
ECM Connector
E1(±)
E13E12
05±236
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
NGCHECK AND REPLACE ECM (See page 01±32)
OK
REPLACE IGNITION COIL ASSY
4CHECK HARNESS AND CONNECTOR(ECM (IGT TERMINAL) ± IGNITION COIL)
(a)Disconnect the I1, I2, I3 or I4 ignition coil and igniter con- nector.
(b)Disconnect the E13 ECM connector.
(c)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
IGT (I1±3) ± IGT1 (E13±8)
IGT (I2±3) ± IGT2 (E13±9)ContinuityIGT (I3±3) ± IGT3 (E13±10)Continuity
IGT (I4±3) ± IGT4 (E13±11)
Standard (Check for short):
Symbols (Terminal No.)Specified condition
IGT (I1±3)or IGT1 (E13±8) ± Body ground
IGT (I2±3)or IGT2 (E13±9) ± Body groundNocontinuityIGT (I3±3)or IGT3 (E13±10) ± Body groundNo continuity
IGT (I4±3)or IGT4 (E13±11) ± Body ground
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
5INSPECT ECM(IGT1, IGT2, IGT3 AND IGT4 VOLTAGE)
(a)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)Between01Vand45VIGT3 (E13±10) ± E1 (E12±7)Between 0.1 V and 4.5 V
IGT4 (E13±11) ± E1 (E12±7)
NGCHECK AND REPLACE ECM (See page 01±32)
OK

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

A79096
Driver Side J/B
IGN Fuse
A54393
+B
Ignition Coil and Igniter Connector Wire Harness Side
I1
I2I3I4

A79064IG2 Relay
Engine Room R/B No.4
05±238
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
9 CHECK FUSE(IGN)
(a) Remove the IGN fuse from the driver side J/B.
(b) Check for continuity in the IGN fuse.
Standard: Continuity
NG CHECK FOR SHORT IN ALL HARNESS AND
COMPONENTS CONNECTED FUSE
OK
10 CHECK HARNESS AND CONNECTOR(IG2 RELAY ± IGNITION COIL AND IGNITER)
(a) Disconnect the I1, I2, I3 or I4 ignition coil and igniter con-
nector.
(b) Remove the IG2 relay from the engine room R/B No.4.
(c) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
+B (I1±1) ± IG2 relay (3)
+B (I2±1) ± IG2 relay (3)Continuity+B (I3±1) ± IG2 relay (3)Continuity
+B (I4±1) ± IG2 relay (3)
Standard (Check for short):
Symbols (Terminal No.)Specified condition
+B (I1±1) or IG2 relay (3) ± Body ground
+B (I2±1) or IG2 relay (3) ± Body groundNo continuity+B (I3±1) or IG2 relay (3) ± Body groundNo continuity
+B (I4±1) or IG2 relay (3) ± Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
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