TOYOTA AVENSIS 2005 Service Repair Manual

± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±623
AVENSIS REPAIR MANUAL (RM1018E)DTC No.
DTC Detection ConditionTrouble Area
P0380
When the glow plug is turned from ON to OFF, or vice±versa,
conditions (a) and (b) are satisfied:
(a) Battery voltage dos not change
(b) Duty signal from terminal M of the generator does not
change
Open or short in glow plug circuit

Glow fuse

Glow relay

Glow plug

ECM
MONITOR DESCRIPTION
When starting a cold engine, the ECM supplies the current to the glow plug for a certain period of time. As
the supplying current to the glow plug is terminated, the large current is suddenly cut off, therefore the battery
voltage then varies and also terminal M output (duty ratio) of the generator varies. If these variations are not
occurred when the glow plug is turned from ON to OFF, or vice±versa, the ECM realizes that the current has
not been supplied to the glow plug, and interprets this as open malfunction of the glow plug or glow plug
circuit.
MONITOR STRATEGY
Required sensorsGlow plug circuit
Frequency of operationTwice per driving cycle
Duration3 min.
CHK ENG operation2 driving cycles
TYPICAL ENABLING CONDITIONS
ItemSpecificationItemMinimumMaximum
Battery voltage11 V±
Engine speed700 rpm2,000 rpm
Engine coolant temperature±40C (104F)
Engine speed is stable±
Time after engine start8 sec.±
Any switches that vary electrical load
have not been being operated±
The monitor will not run if the generator circuit is malfunctioning
TYPICAL MALFUNCTION THRESHOLDS
Threshold
When the battery voltage, or terminal M output (duty ratio) of the generator does not change, despite turning the glow plug from ON to OFF, or
vice±versa

A81005
ECM
ALT 8
E13
IK1 G±Y
G2
GLOW
Relay1
2 3
G1
Glow Plug110
GLOW
Battery
EI R
4 B±L
B
FL
MAIN
BR B
ALT
12
12
33
BB
Engine Room
R/B No. 3
IJBR BR
B
B 3
333
1 25 15DH
DN 1 DH
18DB 9 DA ECU±IG I13
Ignition Switch 3
1
AM1AM1 IG1
G±R
ED1 1
WDriver
Side J/B
IG1
RelayA12 1
BB±L
A11 3
MY
A11 4
LRL 9
E12
Generator
IG S
2A11
1 A11 A11
R±W B
IK21
EE1 5GREL 14
E9
R
R
B
R±W R±W
W±B
G J10(LHD)
C J20(RHD)
J/C
G J10(LHD)
C J20(RHD)
ALT±SEFI
1 2
1 2 11
11AEngine
Room
R/B No. 1 IE3 7 (LHD)
(RHD)
IO1 7BATT 2
E10
E1 7
E12 B±Y
B±Y
B 05±624
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

A81506
From Battery
Glow System Wiring Diagram
GLOW Relay
Glow Plug ECM
GREL
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±625
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:

After completing repair, confirm P0380 is not set again.

Read freeze frame data using \f \b\f\f
Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for d\
etermining whether the vehicle
was running or stopped, the engine was warmed up or not, etc. at the time o\
f the malfunction.
1CHECK OTHER DTC OUTPUT(BESIDS DTC P0380)
(a)Connect the hand±held tester to the DLC3.
(b)Turn the ignition switch ON and push the hand±held tester main switch \
ON.
(c)Select the item ºDIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODESº.\
(d)Read the DTCs.
Result:
Display (DTC output)Proceed to
Only P0380 are outputA
P0380 and P0622 are outputB
BGO TO RELEVANT DTC CHART (See page 05±544)
A

A33913
A80987
Engine Room R/B No. 3GLOW
Fuse
B08263
OhmmeterContinuity
05±626
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK GLOW PLUG RELAY ASSY
(a)Check the glow plug relay for continuity. (1)Check that there is continuity between and terminal.
Specified condition:
Between terminalSpecified condition
No continuity
1 ± 2Continuity
(Apply battery voltage terminals 3 and 4)
3 ± 4Continuity
NGREPLACE GLOW PLUG RELAY ASSY
OK
3CHECK FUSE(GLOW FUSE)
(a)Remove the GLOW fuse from the engine room R/B No. 3.
(b)Check for continuity in the GLOW fuse. Result: Continuity
NGCHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FUSE
OK
4INSPECT GLOW PLUG ASSY
(a)Check the glow plug for resistance. (1)Check that there is resistance between the glow
plug terminal and ground.
Standard resistance: Approx. 1.1
at 20 C (68 F)
NOTICE:

Be careful not to damage the glow plug pipes as it
could cause an open circuit or shorten life of the glow
plugs.

Avoid getting oil and fuel on the glow plug when
cleaning.

During inspection, be sure to wipe off any oil of the
terminal and bakelite washer with a dry cloth.

Do not apply more than 11 V to the glow plug as it
could cause an open circuit.
NGREPLACE GLOW PLUG ASSY (See page 19±33)
OK

A81091
E9
ECM ConnectorGREL
A80991
±S
+S
A80991
L
B
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±627
AVENSIS REPAIR MANUAL (RM1018E)
5 INSPECT GLOW PLUG ASSY(INSTALLATION)
NG TIGHTEN GLOW PLUG
OK
6 CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY ± ECM, AND GLOW
PLUG RELAY ± BODY GROUND)
(a) Disconnect the E9 ECM connector.
(b) Remove the glow plug relay.
(c) Check for continuity between the wire harness side con-
nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
+S (Glow plug relay terminal 3) ± GREL (E9±14)Continuity±S (Glow plug relay terminal 4) ± Body groundContinuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
GREL (E9±14) ± Body groundNo Continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
7 CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY ± GLOW PLUG, AND
GLOW PLUG RELAY ± BATTERY)
(a) Remove the glow plug relay.
(b) Disconnect the glow plug wire.
(c) Check for continuity between the wire harness.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
L (Glow plug relay terminal 2) ± Glow plug wire
B (Glow plug relay terminal 1)
± Positive terminal of the batteryContinuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK

A66060
E13E9
E2GREL
ECM Connector
A80463
BATT (+)
E10E12
E1 (±)
ECM Connector
05±628
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
8INSPECT ECM(GREL VOLTAGE)
(a)Turn the ignition switch START.
(b)Measure the voltage between the specified terminals of the E9 and E13 ECM connectors.
Voltage:
Symbols (Terminal No.)ConditionSpecified Condition
GREL (E9±14) ±
E2 (E13±28)Engine coolant temp. is40
C (104
F) or less9 to 14 V
NGREPLACE ECM (See page 10±65)
OK
9INSPECT ECM(BATT VOLTAGE)
(a)Measure the voltage between the specified terminals of the E10 and E12 ECM connectors.
Standard:
Symbols (Terminal No.)Specified Condition
BATT (E10±2) ± E1 (E12±7)9 to 14 V
NGREPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY ± ECM)
OK
CHECK FOR INTERMITTENT PROBLEMS (See page 05±528)

A81512
G and NE Signal Waveforms5 V/
Division
G 20 msec./Division (Idling)
NE
A64984
Camshaft Position Sensor
05±620
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0340CAMSHAFT POSITION SENSOR ºAº CIRCUIT (BANK 1 OR SINGLE SENSOR)
CIRCUIT DESCRIPTION
Camshaft position sensor (G signal) consists of a magnet, iron core and pickup\
coil.
The G signal plate has one tooth on its outer circumference and is installe\
d on the camshaft timing pulley.
When the camshafts rotate, the protrusion on the signal plate and the air ga\
p on the pickup coil change,
causing fluctuations in the magnetic field and generating an electromoti\
ve force in the pickup coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft timing pu\
lley. The NE signal sensor gen-
erates 34 signals at every engine revolution. The ECM detects the standard crankshaft angl\
e based on the
G signal and the actual crankshaft angle and the engine speed by the NE s\
ignal.
DTC No.DTC Detection ConditionTrouble Area
P0340

No camshaft position sensor signal to ECM during cranking
(2 trip detection logic)
Open or short in camshaft position sensor circuit

Camshaft position sensor
P0340(g)

No camshaft position sensor signal to ECM with engine
speed 650 rpm or more (1 trip detection logic)
Camshaft timing pulley

ECM
Reference: Inspection using the oscilloscope.
The correct waveform is as shown in the diagram on the left.
Symbols (Terminal No.)Specified condition
G1 (E12±23) ± G± (E12±31)Correct waveform is as shown
WIRING DIAGRAM
Refer to DTC P0335 on page 05±616.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using \b
 . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfu\
nction.
1INSPECT CAMSHAFT POSITION SENSOR
(a)Measure the resistance between terminals 1 and 2. Resistance:
1,630 to 2,740
at cold
2,065 to 3,225
at hot
NOTICE:
ºColdº and ºHotº shown above mean the temperature of
the coils themselves. ºColdº is from ±10 C (14 F) to 50 C
(122 F) and ºHotº is from 50 C (122 F) to 100 C (212 F).
NGREPLACE CAMSHAFT POSITION SENSOR (See page 10±63)
OK
05B5J±03

A54385
Wire Harness SideCamshaft Position Sensor Connector C1
A81087
E12
ECM Connector
G±
G1
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±621
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK HARNESS AND CONNECTOR(CAMSHAFT POSITION SENSOR ± ECM)
(a)Disconnect the C1 camshaft position sensor connector.
(b)Disconnect the E12 ECM connector.
(c)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Camshaft position sensor (C1±1) ± G1 (E12±23)ContinuityCamshaft position sensor (C1±2) ± G± (E12±31)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Camshaft position sensor (C1±1)or G1 (E12±23)
± Body ground
NocontinuityCamshaft position sensor (C1±2)or G± (E12±31) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
3CHECK SENSOR INSTALLATION(CAMSHAFT POSITION SENSOR)
NGTIGHTEN SENSOR
OK
4CHECK CAMSHAFT TIMING PULLEY(TEETH OF PLATE)
(a)Check the teeth of the signal plate. NGREPLACE CAMSHAFT TIMING PULLEY
OK
REPLACE ECM (See page 10±65)

A81512
G and NE Signal Waveforms
5 V/
Division
G
20 msec./Division (Idling) NE 05±616
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0335 CRANKSHAFT POSITION SENSOR ºAº
CIRCUIT
DTC P0339 CRANKSHAFT POSITION SENSOR ºAº
CIRCUIT INTERMITTENT
CIRCUIT DESCRIPTION
Crankshaft position sensor (NE signal) consists of a magnet, iron core and pickup coil.
The NE signal plate has 34 teeth and is installed the crankshaft timing pulley. The NE signal sensor gener-
ates 34 signals of every engine revolution. The ECM detects the standard crankshaft angle based on the
G signal, and the actual crankshaft angle and the engine speed by the NE signal.
DTC No.DTC Detection ConditionTrouble Area
P0335
No crankshaft position sensor signal to ECM during cranking
(2 trip detection logic)
P0335No crankshaft position sensor signal to ECM with engine
speed 650 rpm or more (2 trip detection logic)

Open or short in crankshaftposition sensor circuit
P0339
In conditions (a), (b) and (c), when no crankshaft position sen-
sor (NE) signal is input for 0.05 sec. or more.
(1 trip detection logic)
(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.
Open or short in crankshaft position sensor circuit

Crankshaft position sensor

Signal plate (crankshaft timing pulley)

ECM
Reference: Inspection using the oscilloscope.
The correct waveform is as shown in the diagram on the left.
Symbols (Terminal No.)Specified condition
NE+ (E13±27) ± NE± (E13±34)Correct waveform is as shown
05B5I±03

A81004
ECM
C1
Camshaft Position Sensor
NE± NE+ G1
2723
E12
L P
E13
R
BR
EI C6
Crankshaft Position Sensor1
2
1
234
E1331
E12G±
G (Shielded)(Shielded)
EE
E
J12
J/CE1
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±617
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:

Perform troubleshooting of DTC P0335 first. If no trouble is found, troubleshoot the engine mechanical
systems.

Read freeze frame data using   
 . 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, etc. at the time of the malfunction.