fuse chart TOYOTA AVENSIS 2005 Service Repair Manual

010B7±13
01±22± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Carry out troubleshooting in accordance with the procedures on the following page. Here, only the basic
procedures are shown. Details are provided in the Diagnostics Section, showing the most effective methods
for each circuit. Confirm the troubleshooting procedures first for the relevant circuit before beginning trouble-
shooting of that circuit.
1 Vehicle brought to workshop
2 Customer problem analysis
(a) Ask the customer about the conditions and environment when the problem occurred.
3 Symptom confirmation and DTC (and freeze frame data) check
(a) Check the battery positive voltage.
Voltage: 11 ± 14 V (Engine stopped)
(b) Visually check the wire harness, connectors and fuses for open and short, etc.
(c) Warm up the engine to the normal operating temperature.
(d) Confirm the problem symptoms and conditions, and check for DTCs according to the related chart.
OK Go to step 5
NG
4 DTC chart
(a) Check the results obtained in step 3, then confirm the inspection procedures for the system or the part
which should be checked using the DTC chart.
Go to step 6
5 Problem symptoms chart
(a) Check the results obtained in step 3, then confirm the inspection procedures for the system or the part
which should be checked using the problem symptoms table.
6 Circuit inspection or parts inspection
(a) Confirm the circuit for the system or the part which should be checked using the problem symptoms
table or the results obtained in step 4.
7 Repair
(a) Repair the affected system or part in accordance with the instructions in step 6.

B50489Ignition Switch
I13
A18294ECM Connecter
E12E9
E1 (±)MREL (+)
A66054
Engine Room R/B No.1
EFI Fuse
05±128
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
7 INSPECT IGNITION OR STARTER SWITCH ASSY
(a) Measure the resistance between the connector terminals
shown in the chart below.
SwitchTerminal No.Resisitance
LOCKAll Terminals1M
or more
ACC1±31
or less
ON1±2, 1±3, 2±3, 5±61
or less
START4±5, 4±6, 5±6, 1±21
or less
NG REPLACE IGNITION OR STARTER SWITCH
ASSY
OK
CHECK AND REPAIR HARNESS AND CONNECTOR (BATTERY ± IGNITION SWITCH, IGNITION
SWITCH ± ECM)
8 INSPECT ECM(MREL VOLTAGE)
(a) Turn the ignition switch ON.
(b) Measure the voltage between the terminals of the E9 and
E12 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
MREL (E9±8) ± E1 (E12±7)9 to 14 V
NG CHECK AND REPLACE ECM
OK
9 CHECK FUSE(EFI FUSE)
(a) Remove the EFI fuse from the engine room R/B No.1.
(b) Check for continuity in the EFI fuse.
Standard: Continuity
NG CHECK FOR SHORT IN ALL HARNESSES AND
COMPONENTS CONNECTED FUSE
OK

A79096
Driver Side J/B
IGN Fuse
B50489Ignition Switch
I13
A18294ECM Connecter
E12E9
E1 (±)MREL (+)
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±259
AVENSIS REPAIR MANUAL (RM1018E)
4 CHECK FUSE(IGN FUSE)
(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 HARNESSES AND
COMPONENTS CONNECTED FUSE
OK
5 INSPECT IGNITION OR STARTER SWITCH ASSY
(a) Measure the resistance between the connector terminals
shown in the chart below.
SwitchTerminal No.Resisitance
LOCKAll Terminals1M
or more
ACC1±31
or less
ON1±2, 1±3, 2±3, 5±61
or less
START4±5, 4±6, 5±6, 1±21
or less
NG REPLACE IGNITION OR STARTER SWITCH
ASSY
OK
CHECK AND REPAIR HARNESS AND CONNECTOR (BATTERY ± IGNITION SWITCH, IGNITION
SWITCH ± ECM)
6 INSPECT ECM(MREL VOLTAGE)
(a) Turn the ignition switch ON.
(b) Measure the voltage between the terminals of the E9 and
E12 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
MREL (E9±8) ± E1 (E12±7)9 to 14 V
NG CHECK AND REPLACE ECM
OK

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


A79096
Driver Side J/BIGN Fuse
B50489Ignition Switch
I13
Component Side
A67446ECM Connecter
E11E9
E1 (±)MREL (+)
05±504
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK FUSE(IGN FUSE)
(a)Remove the IGN fuse from the driver side J/B.
(b)Check for continuity in the IGN fuse. Standard: Continuity
NGCHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED FUSE
OK
5INSPECT IGNITION OR STARTER SWITCH ASSY
(a)Measure the resistance between the connector terminals shown in the chart below.
SwitchTerminal No.Resistance
LOCKAll Terminals1 M
or more
ACC1±31
or less
ON1±2, 1±3, 2±3, 5±61
or less
START4±5, 4±6, 5±6, 1±21
or less
NGREPLACE IGNITION OR STARTER SWITCH
ASSY
OK
CHECK AND REPAIR HARNESS AND CONNECTOR(BATTERY ± IGNITION SWITCH, IGNITION
SWITCH ± ECM)
6INSPECT ECM(MREL VOLTAGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between the specified terminals of the E9 and E11 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
MREL (E9±8) ± E1 (E11±1)9 to 14 V
NGCHECK AND REPLACE ECM (See page 01±32)
OK

05±532
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Clearing the DTCs not using the hand±held tester:
(1) Disconnect the battery terminal or remove the EFI
and ETCS fuses from the engine room R/B for more
than 60 seconds.
4. FAIL±SAFE CHART
If any of the following codes are recorded, the ECM enters the fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0087VTA is fixed at 10 %Ignition switch OFF
P0088VTA is fixed at 10 %Ignition switch OFF
P0093After fail safe driving control is performed for 1 minute, en-
gine stallsIgnition switch OFF
P0095
P0097
P0098
Intake air temp. is fixed at 145
C (293
F)Return to normal condition
P0105
P0107
P0108
Turbo pressure is set at fixed valueReturn to normal condition
P0115
P0117
P0118
When fuel temp. sensor operates normal and intake air
temp. is less than 15
C (59
F), value of fuel temp. sensor
is substituted
When fuel temp. sensor operates normal and intake air
temp. is more than 20
C (68
F), value is fixed at 120
C
(248
F)
When the fuel temp. sensor is abnormal, value is fixed at
40
C (104
F)
Return to normal condition
P0168Output limitReturn to normal condition
P0180
P0182
P0183
Fuel temp. is fixed at 40
C (104
F)Return to normal condition
P0190
P0191
P0192
P0193
VTA is fixed at 10 %Ignition switch OFF
P0200VTA is fixed at 25 %Ignition switch OFF
P0335Output limitReturn to normal condition
P0488VTA is fixed at 25 %Ignition switch OFF
P0500Vehicle speed is fixed at 0 km/h (0 mph)Vehicle speed less than 10 km/h (6 mph)
P1229VTA is fixed at 10 %Ignition switch OFF
P1271VTA is fixed at 25 %Ignition switch OFF
P1272VTA is fixed at 25 %Ignition switch OFF
P2120
P2122
P2123
P2125
P2127
P2128
P2138
Output limitIgnition switch OFF
5. CHECK FOR INTERMITTENT PROBLEMS
Hand±held tester only:
By putting the vehicle's ECM in the check mode, the 1 trip detection logic is possible instead of the 2 trip
detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent
problems.
(a) Clear the DTCs (See step 2).
(b) Set the check mode (See step 3).

A79096
Driver Side J/BIGN Fuse
B50489Ignition Switch
I13
A18294
E1 (±)MREL (+)
ECM Connecter
E12E9
05±688
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK FUSE(IGN FUSE)
(a)Remove the IGN fuse from the driver side J/B.
(b)Check for continuity in the IGN fuse. Standard: Continuity
NGCHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED FUSE
OK
5INSPECT IGNITION OR STARTER SWITCH ASSY
(a)Measure the for continuity between the connector termi- nals shown in the chart below.
SwitchTerminal No.Resisitance
LOCKAll TerminalsNo continuity
ACC1±3Continuity
ON1±2, 1±3, 2±3, 5±6Continuity
START4±5, 4±6, 5±6, 1±2Continuity
NGREPLACE IGNITION OR STARTER SWITCH ASSY
OK
CHECK AND REPAIR HARNESS AND CONNECTOR (BATTERY ± IGNITION SWITCH, IGNITION
SWITCH ± ECM)
6INSPECT ECM(MREL VOLTAGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between the specified terminals of the E9 and E12 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
MREL (E9±8) ± E1 (E12±7)9 to 14 V
NGREPLACE ECM (See page 10±65)
OK

050WM±04
05±1054
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:

Using SST 09843±18040, connect terminals Tc and CG of the DLC3.

If a malfunction code is displayed during the DTC check, check the circuit\
listed for the code. For details
of each code, proceed the page referred to under the ºSee pageº for \
respective ºDTC No.º in the DTC
chart.
DTC No.
(See page)Detection ItemTrouble Area
C1511/11
(05±1059)
C1512/12
(05±1059)Torque sensor circuit malfunction
Steering column assy
C1513/13
(05±1059)
Steering column assy

Power steering ECU assy
C1514/14
(05±1059)Torque sensor power source circuit malfunction
C1515/15
(05±1062)Calibration of torque sensor zero point is not performedSensor zero point calibration is not preformed.
C1516/16
(05±1063)Calibration of torque sensor zero point is not completedSensor zero point calibration failure.
C1517/17
(05±1059)Torque sensor hold malfunction
Steering column assy

Power steering ECU assy
C1523/23
(05±1064)
Motor circuit malfunction
Steering column assy
C1524/24
(05±1064)Motor circuit malfunctionSteering column assy

Power steering ECU assy
C1531/31
(05±1066)
C1532/32
(05±1066)
Power steering ECU assy malfunctionPower steering ECU assyC1533/33
(05±1066)Power steering ECU assy malfunctionPower steering ECU assy
C1534/34
(05±1066)
C1541/41
(05±1067)
Speed sensor malfunction

Speed sensor

Speed sensor circuit

Skid control ECUC1542/42
(05±1067)Speed sensor malfunction
Skid control ECU

Combination meter assy

Power steering ECU assy
C1544/44
(05±1070)
Engine revolution signal malfunction

Engine revolution signal circuit
ECMC1545/45
(05±1070)Engine revolution signal malfunction
ECM

Power steering ECU assy
C1551/51
(05±1073)IG power source circuit malfunction

ECU±IG fuse

Power steering relay

IG power source circuit

Charging system

Power steering ECU assy
C1552/52
(05±1076)PIG power source circuit malfunction
EMPS fuse

EMPS rela
y
C1554/54
(05±1076)EMPS relay circuit malfunction

EMPS relay

PIG power source circuit

Power steering ECU assy

E32993
I36144
HR
A16A15
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1147
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 CHECK FUSE(HTR FUSE)
(a) Remove the HTR fuse from the driver side J/B and engine room J/B.
(b) Check for the continuity of HTR fuse.
NG REPLACE FUSE
OK
2 INSPECT HEATER RELAY
(a) Check for the continuity between each pair of terminals of
cooler relay assy, as shown in the chart.
Standard:
Terminal No.Specified condition
No continuity
3 ± 5Less than 1

(When battery voltage applied to terminals 1 and 2)
Less than 1

3 ± 4No continuity
(When battery voltage applied to terminals 1 and 2)
1 ± 2Approx. 1.3 k

NG REPLACE HEATER RELAY
OK
3 CHECK HARNESS AND CONNECTOR(A/C AMPLIFIER ± BATTERY)
(a) Remove the A/C amplifier with connectors being con-
nected.
(b) Measure the voltage between terminal HR of A/C amplifi-
er and body ground when ignition switch is ON and OFF.
Standard:
Ignition switch positionBlower switch positionVoltage (V)
OFFOFF0
ONONBelow 1.0
ONOFF10 to 14
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE

3
2
145678
910111213141516
DLC3
A04550
TC
CG
ONON
ONON
OFFOFFOFF
0.25sec.
0.25sec.
FI0294
BR3589
Start
0.5 sec.1.5 sec.4.5 sec.
ON
OFF
One Cycle 0.5 sec.
2.5
sec.
Repeat
4.5 sec.
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±153
AVENSIS REPAIR MANUAL (RM1018E)
(b)If you have no hand±held tester, perform the following
steps (1) to (6).
(1)Turn the ignition switch ON.
(2)Using SST, connect between terminals 13 (TC) and4 (CG) of the DLC3.
SST09843±18040
(3)Read DTC by observing the CHK ENG lamp. If any DTC is not detected, the CHK ENG lamp blinks as
shown in the illustration.
(4)Example If DTC 12 and DTC 31 are detected, the CHK ENG
flashes 1 time (for 0.5 sec) and flashes 2 times after
the 1.5 sec interval, then flashes 3 times after a 2.5
sec interval from the previous DTC and flashes 1
time.
If the interval between the previous DTC and the
next DTC is 4.5 sec, it means the previous DTC is
the last one of the multiple string DTCs. The CHK
ENG lamp repeats the indication of DTCs from the
initial cycle. (Refer to the illustration on the left)
(5)Check the details of the malfunction using the DTC chart on page 05±16.
(6) After completing the check, disconnect terminals 13
(TC) and 4 (CG) and turn off the display.
HINT:
In the event that 2 or more DTCs are detected, the CHK ENG
lamp will indicate the smaller number DTC first.
(c) Clearing the DTCs using the hand±held tester: (1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) When operating hand±held tester to erase thecodes, the DTCs and freeze frame data will be
erased. (See the hand±held tester's instruction
book for operating instructions.)
(d) Clearing the DTCs not using the hand±held tester: (1) Disconnect the battery terminal or remove the EFI
fuse for more than 60 seconds.