2005 TOYOTA AVENSIS diagnostic

05−514
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
5 READ VALUE OF HAND −HELD TESTER(MASS AIR FLOW RATE)
HINT:
DTC P0 100, P0 102 or P0 103 ( 1 trip detection logic) will be present if there is an open or short malfunction
in the mass air flow (MAF) meter, or P0 101 (2 trip detection logic) will be present if there is other malfunction
in the MAF meter.
(a) Disconnect the throttle control motor connector.
(b) Disconnect the EGR valve connector.
(c) Connect the hand −held tester to the DLC3.
(d) Start the engine and turn the hand −held tester ON.
(e) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST / ALL / MAF” and read its value displayed on the hand −held tester.
Result:
Engine Speed ConditionAir Flow Rate (gm/s)
800 rpm4to 9
(f) Reconnect the throttle control motor connector.
(g) Reconnect the EGR valve connector.
NG REPLACE MASS AIR FLOW METER
OK
6 CHECK TURBOCHARGING PRESSURE (See on page 13− 6)
NG REPLACE TURBOCHARGER SUB −ASSY
(See page 13−1 2)
OK

−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −515
AVENSIS Supplement (RM 1045E)
7 READ VALUE OF HAND −HELD TESTER
(a) Connect the hand −held tester to the DLC3.
(b) Start the engine and turn the hand −held tester ON.
(c) Enter ”DIAGNOSIS / OBD/MOBD / DATA LIST / ALL”.
(d) Select the following items in order and read values displayed on the hand −held tester respectively.
( 1 ) COMN RAIL
(2) PUMP VCM ANGLE
(3) INJ VOLUME
(4) M −INJ/PILOT ON
(5) M −INJ/PILOT OFF
(6) PILOT −INJ
(7) INJ TIMING
(8) INJ VOL FB # 1 to #4
Reference:
ItemEngine Speed *Reference Value
COMN RAILIdling30 to 40 MPa
COMN RAIL2,000 rpm (No engine load)35 to 80 MPa
COMN RAIL3,000 rpm (No engine load)50 to 100 MPa
INJ VOLUMEIdling3to 10mm3
INJ VOLUME2,000 rpm (No engine load)3to 10mm3
INJ VOLUME3,000 rpm (No engine load)5to 12mm3
M −INJ/PILOT ONIdling600 to 1,200
s
M −INJ/PILOT OFFIdling0
s
PILOT −INJIdling400 to 700
s
INJ TIMINGIdling−1 to 5 _ CA
INJ TIMING2,000 rpm (No engine load)0to 4 _ CA
INJ TIMING3,000 rpm (No engine load)1 to 5 _ CA
INJ VOL FB # 1Idling−4.9 to 4.9 mm 3
INJ VOL FB #2Idling−4.9 to 4.9 mm 3
INJ VOL FB #3Idling−4.9 to 4.9 mm 3
INJ VOL FB #4Idling−4.9 to 4.9 mm 3
*: If no conditions are specifically stated for ”ldling”, it means the A/C switch is OFF and all accessory switches
are OFF.
Result:
ResultProceed to
Within the reference valueA
One of the INJ VOL FB # 1 to #4 indicates out of the reference valueB
Other than aboveC
B GO TO DTC P 1238 (See page 05 −43 1)
C Go to step 11
A
8 INSPECT CYLINDER COMPRESSION PRESSURE (See page 14− 87)
NG CHECK AND REPAIR ENGINE
OK

2 1
A80992
I5
Wire Harness Side:
Injector Connector
I6
I7I8
Front View
A56874
E4
Wire Harness Side:
EDU Connector
INJ3INJ2 INJ4 INJ1COM1
COM2
Front View
05−516
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
9 CHECK HARNESS AND CONNECTOR(INJECTOR−EDU)
HINT:
DTC P0200 (1trip detection logic) will be present if there is an open or short malfunction in the EDU circuit.
(a) Disconnect the I5, I6, I7, or I8 injector connector.
(b) Disconnect the E4 EDU connector.
(c) Measure the resistance between the wire harness side
connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Injector (I5−1)−INJ1(E4−4)
Injector (I6−1)−INJ2 (E4−2)
Injector (I7−1)−INJ3 (E4−1)
Injector (I8−1)−INJ4 (E4−3)Below1Injector (I5−2)−COM1(E4−5)Below1
Injector (I6−2)−COM2 (E4−6)
Injector (I7−2)−COM2 (E4−6)
Injector (I8−2)−COM1(E4−5)
Standard (Check for short):
Tester ConnectionSpecified Condition
Injector (I5−1) or INJ1(E4−4)−Body ground
Injector (I6−1) or INJ2 (E4−2)−Body ground
Injector (I7−1) or INJ3 (E4−1)−Body ground
Injector (I8−1) or INJ4 (E4−3)−Body ground10korhigherInjector (I5−2) or COM1(E4−5)−Body ground10kor higher
Injector (I6−2) or COM2 (E4−6)−Body ground
Injector (I7−2) or COM2 (E4−6)−Body ground
Injector (I8−2) or COM1(E4−5)−Body ground
(d) Reconnect the injector connector.
(e) Reconnect the EDU connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
10 PERFORM ACTIVE TEST BY HAND−HELD TESTER(INJECTOR CUT #1TO #4)
(a) Connect the hand−held tester to the DLC3.
(b) Start the engine and turn the hand−held tester ON.
(c) Select the item ”DIAGNOSIS / OBD/MOBD / ACTIVE TEST / INJECTOR CUT #1to #4”.
(d) Check the engine idling condition while the fuel injection of each cylinder is cut by the hand−held tester.
Result:
Engine Idle ConditionProceed to
Becomes unstableA
Does not changeB
HINT:
Replace the injector mounted on the cylinder that causes rough idling.

A66060
E13
E2 ( −)
THW (+)
ECM Connector
A66060
PIM (+)
E2 ( −)
E 12
ECM Connector
E
13
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −517
AVENSIS Supplement (RM 1045E)
B GO TO DTC P 1238 (See page 05 −43 1)
A
REPLACE INJECTOR DRIVER
11 INSPECT ECM(THW VOLTAGE)
(a) Start the engine.
(b) Measure the voltage between the specified terminals of
the E13 ECM connector.
Standard:
Tester ConnectionConditionSpecified Condition
THW (E 13−1 9)−
E2 (E 13− 28)Idling, engine coolant tem-
perature is 60 to 120 ˚C
( 1 40 to 248 ˚F)
0.2 to 1.0 V
NG Go to step 17
OK
1 2 INSPECT ECM(PIM VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the specified terminals of
the E12 and E 13 ECM connectors.
Standard:
Tester ConnectionConditionSpecified Condition
PIM (E 12− 28) −
E2 (E 13− 28)Applied negative pressure
of 40 kPa (300 mmHg, 11.8 in.Hg)
1.4 to 2.0 V
PIM (E 12 − 28) −
E2 (E 13− 28)Same as atmospheric
pressure2.0 to 2.6 V
PIM (E 12 − 28) −
E2 (E 13− 28)Applied positive pressure
of 69 kPa (5 18 mmHg,
20.4 in.Hg)
3.0 to 3.6 V
NG Go to step 18
OK

A66060
E13
ECM Connector NE+
NE−
A85516
G and NE Signal Waveforms
5V/
Division
G
20 msec./Division (Idling) NE
A66060ECM ConnectorEPA (−) VPA (+)
E9
EPA2 (−)
VPA2 (+)
05−518
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
13 INSPECT ECM(NE SIGNAL)
(a) Inspect using the oscilloscope.
(b) During idling, check the waveform between the specified
terminals of the E13 ECM connector.
Standard:
Tester ConnectionSpecified Condition
NE+ (E13−27)−NE−(E13−34)Correct waveform is as shown
NG Go to step19
OK
14 INSPECT ECM(VPA AND VPA2 VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the specified terminals of
the E9 ECM connector.
Standard:
Accelerator Pedal PositionTester ConnectionSpecified Condition
ReleasedVPA(E9−22)0.5 to1.1V
Depressed
VPA(E922)
−EPA (E9−28)2.5 to 4.6 V
ReleasedVPA2 (E9−23)1.5 to 2.9 V
Depressed
VPA2(E923)
−EPA2 (E9−29)3.5 to 5.5 V
NG Go to step 20
OK

A66060
E13
E2 ( −)
THA (+)
ECM Connector
A66060
E 13
E2 ( −)
PCR
1 (+)
ECM Connector
PCR2 (+)
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −519
AVENSIS Supplement (RM 1045E)
15 INSPECT ECM(THA VOLTAGE)
(a) Start the engine.
(b) Measure the voltage between the specified terminals of
the E13 ECM connector.
Standard:
Tester ConnectionConditionSpecified Condition
THA (E 13− 31) −
E2 (E 13− 28)Idling, intake air tempera-
ture at 20 ˚ C (68 ˚ F)0.5 to 3.4 V
NG Go to step 2 1
OK
1 6 INSPECT ECM(PCR 1 AND PCR2 VOLTAGE)
(a) Start the engine.
(b) Measure the voltage between the specified terminals of
the E13 ECM connector.
Standard:
Tester ConnectionConditionSpecified Condition
PCR 1 (E 13− 26) −
E2 (E 13− 28)Idling1.8 to 2. 1 V
PCR2 (E 13− 33) −
E2 (E 13− 28)Idling1.2 to 1.5 V
NG Go to step 22
OK
REPLACE ECM (See page 10− 29)

S01196S01699
30
20
10
5
3
02040 0.1 1
0.3
0.2 0.52
60 80100 −20
(−4) (104) (140) (176) (32) (68) (212)
A81700
Ohmmeter
Acceptable
Temperature_C(_F)
Resistance K

A56992
E2
PIM
VC T5
Wire Harness Side:
Manifold Absolute
Pressure Sensor Connector
Front View
A81088
PIM
VC
E2E12ECM Connector E13
05−520
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
17 INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Remove the engine coolant temperature sensor.
(b) Measure the resistance between the terminals.
Standard:
2.32 to 2.59 k
at 20_C (68_F)
0.310 to 0.326 k
at 80_C(176_F)
NOTICE:
If you check the engine coolant temperature sensor in wa-
ter, be careful not to allow water to contact the terminals.
After checking, dry the sensor.
HINT:
Alternate procedure: Connect an ohmmeter to the installed en-
gine coolant temperature sensor and read the resistance. Use
an infrared thermometer to measure the engine temperature in
the immediate vicinity of the sensor. Compare these values to
the resistance/temperature graph. Change the engine temper-
ature (warm up or allow to cool down) and repeat the test.
(c) Reinstall the engine coolant temperature sensor.
NG REPLACE ENGINE COOLANT TEMPERATURE
SENSOR
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR
18 CHECK HARNESS AND CONNECTOR(MANIFOLD ABSOLUTE PRESSURE
SENSOR−ECM)
(a) Disconnect the T5 manifold absolute pressure sensor
connector.
(b) Disconnect the E13 and E12 ECM connectors.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
PIM (T5−2)−PIM (E12−28)
VC (T5−3)−VC (E13−18)Below1
E2 (T5−1)−E2 (E13−28)
Standard (Check for short):
Tester ConnectionSpecified Condition
PIM (T5−2) or PIM (E12−28)−Body ground
VC (T5−3) or VC (E13−18)−Body ground10kor higher
E2 (T5−1)orE2(E13−28)−Body ground
g
(d) Reconnect the manifold absolute pressure sensor con-
nector.
(e) Reconnect the ECM connectors.

A78431
Crankshaft Position Sensor Component Side:
C4
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−521
AVENSIS Supplement (RM1045E)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
19 INSPECT CRANKSHAFT POSITION SENSOR
(a) Disconnect the C4 crankshaft position sensor connector.
(b) Measure the resistance between terminals1and 2.
Standard:
Tester ConnectionSpecified Condition
121,630 to 2,740at cold1−22,065 to 3,225at hot
NOTICE:
”Cold” and ”Hot” shown above mean the temperature of
the coils themselves. ”Cold” is from−10_C(14_F) to 50_C
(122_F) and ”Hot” is from 50_C(122_F) to100_C(212_F).
(c) Reconnect the crankshaft position sensor connector.
NG REPLACE CRANKSHAFT POSITION SENSOR
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR