010B7±13
01±22±
INTRODUCTION HOW 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 follo\
wing 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 r\
elevant 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 o\
ccurred.
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 accordin\
g 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 partwhich 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 u\
sing 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.
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Z11554
Seal Lock Adhesive
BE1367
Medium Current Fuse and High Current
Fuse Equal Amperage Rating
V35002
IllustrationSymbol Part Name Abbreviation
FUSE
MEDIUM CURRENT FUSE
HIGH CURRENT FUSE FUSE
M±FUSE H±FUSE
01±6
±
INTRODUCTION REPAIR INSTRUCTION
AVENSIS REPAIR MANUAL (RM1018E)
(b) JACKING UP AND SUPPORTING VEHICLE (1) Care must be taken when jacking up and supporting the vehicle. Be sure to li\
ft and support thevehicle at the proper locations (See page 01±19).
(c) PRECOATED PARTS(1) Precoated parts such as bolts, nuts, etc., are
coated with a seal lock adhesive at the factory.
(2) If a precoated part is retightened, loosened or caused to move in any way, it must be recoated with
the specified adhesive.
(3) When reusing precoated parts, clean off the old
adhesive and dry the part with compressed air.
Then apply the specified seal lock adhesive to the
bolt, nut or threads.
NOTICE:
Check the torque with the lower limit value of the torque tol-
erance.
(4) Depending on the seal lock agent to be applied,there may be cases where it is necessary to leave
it for a specified time until it hardens.
(d) GASKETS (1) When necessary, use a sealer on gaskets to prevent leaks.
(e) BOLTS, NUTS AND SCREWS (1) Carefully follow all the specifications for tightening torques. Always u\
se a torque wrench.
(f) FUSES(1) When replacing fuses, be sure that a new fuse hasthe correct amperage rating. DO NOT exceed the
rating, or use one with a lower rating.
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±
INTRODUCTION TERMS
01±39
AVENSIS REPAIR MANUAL (RM1018E)Abbreviations Meaning
H±FUSEHigh Current Fuse
HIHigh
HIDHigh Intensity Discharge (Head Lamp)
HSGHousing
HTHard Top
HWSHeated Windshield System
ICIntegrated Circuit
IDIIndirect Diesel Injection
IFSIndependent Front Suspension
IGIgnition
IIAIntegrated Ignition Assembly
INIntake (Manifold, Valve)
INTIntermittent
I/PInstrument Panel
IRSIndependent Rear Suspension
ISCIdle Speed Control
J/BJunction Block
J/CJunction Connector
KDKick±Down
LANLocal Area Network
LBLiftback
LCDLiquid Crystal Display
LEDLight Emitting Diode
LHLeft±Hand
LHDLeft±Hand Drive
L/H/WLength, Height, Width
LLCLong±Life Coolant
LNGLiquified Natural Gas
LOLow
LPGLiquified Petroleum Gas
LSDLimited Slip Differential
LSP & PVLoad Sensing Proportioning And Bypass Valve
LSPVLoad Sensing Proportioning Valve
MAPManifold Absolute Pressure
MAX.Maximum
MICMicrophone
MILMalfunction Indicator Lamp
MIN.Minimum
MG1Motor Generator No.1
MG2Motor Generator No.2
MPMultipurpose
MPIMultipoint Electronic Injection
MPXMultiplex Communication System
M/T, MTMManual Transmission (Transaxle)
MTMount
MTGMounting
NNeutral
NANatural Aspiration
No.Number
O2SOxygen Sensor
O/DOverdrive
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01±8
±
INTRODUCTION TERMS (1ZZ±FE/3ZZ±FE)
1ZZ±FE,3ZZ±FE ENGINE REPAIR MANUAL
(RM923E) Abbreviations Meaning
DIFF.Differential
DIFF. LOCKDifferential Lock
D/INJDirect Injection
DLCData Link Connector
DLIDistributorless Ignition
DOHCDouble Overhead Cam
DPDash Pot
DSDead Soak
DSPDigital Signal Processor
DTCDiagnostic Trouble Code
ECAMEngine Control And Measurement System
ECDElectronic Controlled Diesel
ECDYEddy Current Dynamometer
ECTElectronic Control Transmission
ECUElectronic Control Unit
EDElectro±Deposited Coating
EDUElectronic Driving Unit
EDICElectric Diesel Injection Control
EFIElectronic Fuel Injection
E/GEngine
EGRExhaust Gas Recirculation
EGR±VMEGR±Vacuum Modulator
ELREmergency Locking Retractor
ENGEngine
ESAElectronic Spark Advance
ETCSElectronic Throttle Control System
EVAPEvaporative Emission Control
EVPEvaporator
E±VRVElectric Vacuum Regulating Valve
EXExhaust
FEFuel Economy
FFFront±Engine Front±Wheel±Drive
F/GFuel Gauge
FIPGFormed In Place Gasket
FLFusible Link
F/PFuel Pump
FPUFuel Pressure Up
FRFront
F/WFlywheel
FW/DFlywheel Damper
FWDFront±Wheel±Drive
GASGasoline
GNDGround
HACHigh Altitude Compensator
H/BHatchback
H±FUSEHigh Current Fuse
HIHigh
HIDHigh Intensity Discharge (Head Lamp)
HSGHousing
HTHard Top
HWSHeated Windshield System
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1600R±13
±
COOLING COOLING FAN SYSTEM (1AZ±FE)
16±17
AVENSIS REPAIR MANUAL (RM1018E)
COOLING FAN SYSTEM (1AZ±FE)
ON±VEHICLE INSPECTION
HINT:
It is normal that the cooling fan sometime rotates when the ignition switc\
h is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 77 C (171F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and engine coolant temperature sensor, and check for disconnection of
connectors or wire break between the cooling fan relay and engine coolan\
t temperature sensor.
(c) Disconnect the engine coolant temperature sensor connector.
(d) Check that the cooling fan rotates.
If not, check the fuses, cooling fan relay, ECM and cooling fan, and check for a short circuit between the
cooling fan relay and engine coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 95.5 C (204 F))
(a) Start the engine, and raise coolant temperature to above 95.5 C (204 F).
HINT:
Coolant temperature is the detected value by the engine coolant temperat\
ure sensor on the water outlet.
(b) Check that the cooling fan rotates.
If not, replace the engine coolant temperature sensor.
3. INSPECT COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter. Standard amperage:
5.2 to 8.2 A at 20 C (68F) (M/T)
8.3 to 11.3 A at 20 C (68 F) (A/T)
(d) Reconnect the cooling fan connector.
4. INSPECT COOLING FAN No.2 (With Air Conditioner)
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter. Standard amperage:
5.2 to 8.2 A at 20 C (68F) (M/T)
8.3 to 11.3 A at 20 C (68 F) (A/T)
(d) Reconnect the cooling fan connector.
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1600R±12
±
COOLING COOLING FAN SYSTEM (1AZ±FSE)
16±29
AVENSIS REPAIR MANUAL (RM1018E)
COOLING FAN SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
HINT:
It is normal that the cooling fan sometime rotates when the ignition switc\
h is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 83 C (181F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and engine coolant temperature sensor, and check for disconnection of
connectors or wire break between the cooling fan relay and engine coolan\
t temperature sensor.
(c) Disconnect the engine coolant temperature sensor connector.
(d) Check that the cooling fan rotates.
If not, check the fuses, cooling fan relay, ECM and cooling fan, and check for a short circuit between the
cooling fan relay and engine coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 100 C (212 F))
(a) Start the engine, and raise coolant temperature to above 100 C (212 F).
HINT:
Coolant temperature is the detected value by the engine coolant temperat\
ure sensor on the water outlet.
(b) Check that the cooling fan rotates.
If not, replace the engine coolant temperature sensor.
3. INSPECT COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter. Standard amperage:
5.2 to 8.2 A at 20 C (68F) (M/T)
8.3 to 11.3 A at 20 C (68 F) (A/T)
(d) Reconnect the cooling fan connector.
4. INSPECT COOLING FAN No.2 (With Air Conditioner)
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter. Standard amperage:
5.2 to 8.2 A at 20 C (68F) (M/T)
8.3 to 11.3 A at 20 C (68 F) (A/T)
(d) Reconnect the cooling fan connector.
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1606N±03
A57065
21
±
COOLING COOLING FAN SYSTEM (1CD±FTV)
16±41
AVENSIS REPAIR MANUAL (RM1018E)
COOLING FAN SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 83 C (181 F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
(c) Disconnect the temperature detect switch connector.
(d) Connect the terminals on the temperature detect switch connector.
(e) Check that the cooling fan rotates.
If not, check the fuses, cooling fan relay and cooling fan, and check for \
a open circuit between the cooling
fan relay and temperature detect switch.
(f) Reconnect the temperature detect switch connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 93 C (199 F))
(a) Start the engine, and raise coolant temperature to above 93 C (199 F)
HINT:
Coolant temperature is the detected value by the temperature detect swit\
ch on the radiator lower tank.
(b) Check that the cooling fan rotates.
If not, replace the temperature detect switch.
3. INSPECT COOLING FANS
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connec-tor.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage:
Approx. 13.2 A at 20 C (68 F)
(d) Reconnect the cooling fan connector.
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1600R±14
±
COOLING COOLING FAN SYSTEM (1ZZ±FE/3ZZ±FE)
16±5
AVENSIS REPAIR MANUAL (RM1018E)
COOLING FAN SYSTEM (1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
HINT:
It is normal that the cooling fan sometime rotates when the ignition switc\
h is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 94.5 C (202 F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and engine coolant temperature sensor, and check if there is its connector
disconnection or circuit open between them.
(c) Disconnect the engine coolant temperature sensor connector.
(d) Check that the cooling fan rotates.
If not, check the fuses, cooling fan relay, ECM and cooling fan, and check for short in a circuit between the
cooling fan relay and the engine coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor connector.
2. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 96 C (205 F))
(a) Start the engine, and raise coolant temperature to above 96 C (205 F).
HINT:
Coolant temperature is detected by the engine coolant temperature sensor\
on the water outlet.
(b) Check that the cooling fan rotates.
If not, replace the engine coolant temperature sensor.
3. INSPECT COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the connector.
(c) Check that the cooling fan rotates smoothly, and check the reading on the ammeter. Standard amperage: Approximately. 8 to 12 A at 20 C (68 F)
(d) Reconnect the cooling fan connector.
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