2005 TOYOTA AVENSIS Heater switch

05±312
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P0174 *3
(05±394)System too Lean (Bank2)

Air induction system

Injector blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit

Heated oxygen sensor (bank 2 sensor 1)

Heated oxygen sensor heater (bank 2 sensor 1)

EFI relay

PCV valve and hose

PCV hose connection

ECM

P0175 *3
(05±394)System too Rich (Bank2)

Injector leak, blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Ignition system

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit

Heated oxygen sensor (bank 2 sensor 1)

ECM

P0190
(05±406)Fuel Rail Pressure Sensor Cir-
cuit
Open or short in fuel pressure sensor circuit

Fuel pressure sensor

ECM

P0191
(05±410)Fuel Rail Pressure Sensor Cir-
cuit Range/Performance

Open or short in high±pressure fuel pump (spill valve) circuit

High±pressure fuel pump

Low±pressure fuel pump

Fuel pipe

Fuel relief valve

Fuel pressure regulator

ECM

P0200
(05±415)Injector Circuit/Open
P0201
(05±415)Injector Circuit/Open ±
(Cylinder 1)

Open or short in EDU circuit
P0202
(05±415)Injector Circuit/Open ±
(Cylinder 2)

Oen or short in EDU circuit

EDU (Injector driver)

Fuel injector assy
P0203
(05±415)Injector Circuit/Open ±
(Cylinder 3)
jy

ECM
P0204
(05±415)Injector Circuit/Open ±
(Cylinder 4)
P0220
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit
Throttle position sensor (built in throttle body)

ECM
P0222
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit Low Input

Throttle position sensor (built in throttle body)

VTA2 circuit short

VC circuit open

ECM

P0223
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit High Input

Throttle position sensor (built in throttle body)

VTA2 circuit open

E2 circuit open

VC and VTA2 circuit are short±circuited

ECM


05±316
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P2122
(05±492)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Low Input
P2123
(05±492)Throttle/Pedal Position Sensor/
Switch ºDº Circuit High Input
P2125
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit
Same as DTC No. P2120
P2127
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit Low Input
P2128
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit High Input
P2135
(05±356)Throttle Pedal Position Sensor/
Switch ºAº/ºBº Voltage Correla-
tion
VTA1 and VTA2 circuit are short±circuited

Throttle position sensor (built in throttle body)

ECM

P2138
(05±492)Throttle Pedal Position Sensor/
Switch ºDº/ºEº Voltage Correla-
tion

Same as DTC No. P2120
P2195 *3
(05±363)
Oxygen Sensor Signal Stuck
Lean (Bank 1 Sensor 1)
Open or short in heated oxygen sensor (bank 1, 2 sensor 1)
circuit
P2196 *3
(05±363)
Oxygen Sensor Signal Stuck
Rich (Bank 1 Sensor 1)
Heated oxygen sensor (bank 1, 2 sensor 1)

Heated oxygen sensor heater (bank 1, 2 sensor 1)

EFI relay

P2197 *3
(05±363)
Oxygen Sensor Signal Stuck
Lean (Bank 2 Sensor 1)
EFI relay

Air induction system

Fuel pressure

P2198 *3
(05±363)
Oxygen Sensor Signal Stuck
Rich (Bank 2 Sensor 1)

Fuel ressure

Injector

ECM
P2716 *4
(05±967)
Pressure Control Solenoid ºDº
Electrical
Electronic controlled automatic transmission (ECT)
B2799
(05±1625)Engine Immobiliser System Mal-
function
Immobiliser system

*1: CHK ENG (Check engine warning light) is illuminated
*
2: CHK ENG (Check engine warning light) is illuminated or blinks
*
3: For Euro±OBD vehicles only.
*
4: For A/T only.

05±300
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4. FAIL±SAFE CHART
If any of the following codes is recorded, the ECM enters into the fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0031
P0032
P0037
P0038
P0051
P0052
P0057
P0058
Faulty heater circuit is turned off.Ignition switch is OFF.
P0100
P0102
P0103Ignition timing is calculated based on an engine speed and
a throttle opening angle.ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0105
P0107
P0108
Intake air pressure is controlled with a calculated value in
proportion to the throttle opening angle and the engine
speed.

Limit the engine speed to 3,000 rpm or less.
ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0110
P0112
P0113
Intake air temperature is fixed at 20 C (68 F)ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0115
P0117
P0118
Engine coolant temperature is fixed at 80   ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0120
P0121
P0122
P0123
P0220
P0222
P0223
P2135
Turn off the power for the throttle motor, return the throttle
valve in position using the return spring, and fuel cut inter-
mittent.Repeat the following conditions at least 2 seconds or more
with the throttle position switch closed:

VTA is more than 0.1 V but less than 0.95 V

Engine speed is 0 km/h
P0190
P0191
Stop the high±pressure pump operation.

Limit the engine speed to 2,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P0200Turn off the INJ relay and cut the power for the EDU.
P0201
P0202
P0203
P0204
Stop fuel injection for an abnormal cylinder and related
other cylinders.

Limit the engine speed to 3,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P0325
P0327
P0328
Maximum timing retardationIgnition switch is OFF.
P0351
P0352
P0353
P0354
Stop fuel injection for all the cylinders.ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0604
P0606
P0607
P0657Turn off the power for the throttle motor, return the throttle
valve in position using the return spring, and fuel cut inter-
mittent.After it is returned to normal condition, turn the ignition switch
ON.
P1235
Stop the high±pressure pump operation.

Limit the engine speed to 2,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P2008Force IACV to close.After it is returned to normal condition, turn the ignition switch
ON.

+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output voltage of heated oxygen
sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2: rear sensor)Mainly suspect
trouble area
OK
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(sensor 1, heater, sensor 1
circuit)
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NGExtremely rich or lean actual
air±fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
No reaction
No reaction
No reaction No reaction

Sensor 2: rear sensor
(sensor 2, heater, sensor 2
circuit)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±367
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Hand±held tester only:
Narrowing down the trouble area is possible by performing the ºA/F CONTROLº ACTIVE TEST (heated oxy-
gen sensor or other trouble areas can be distinguished).
(a) Perform ACTIVE TEST using the hand±held tester (A/F CONTROL).
HINT:
ºA/F CONTROLº is an ACTIVE TEST which changes the injection volume ±12.5 % or +25 %.
(1) Connect the hand±held tester to the DLC3 on the vehicle.
(2) Turn the ignition switch ON.
(3) Warm up the engine by running the engine at 2,500 rpm for approximately 90 sec.
(4) Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE TEST / A/F CONTROLº.
(5) Perform ºA/F CONTROLº with the engine in an idle condition (press the right or left button).
Result:
Heated oxygen sensor reacts in accordance with increase and decrease of injection volume:
+25 %
rich output: More than 0.55 V
±12.5 %
lean output: Less than 0.4 V
NOTICE:
There is a few seconds delay in the sensor 1 (front sensor) output. And there is about 20 seconds
delay in the sensor 2 (rear sensor).

05±546
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E) P0380
(05±622)
Glow Plug/Heater Circuit ºAº

Open or short in glow plug circuit

Glow fuse

Glow relay

Glow plug

ECM

P0400
(05±629)Exhaust Gas Recirculation Flow
EGR valve assy

EGR passage
P0403
(05±629)Exhaust Gas Recirculation Con-
trol Circuit
EGR assage

Open or short in EGR circuit

ECM
P0488
(05±633)Exhaust Gas Recirculation
Throttle Position Control Range/
Performance
Open or short in intake shutter circuit

Open or short in fully opened switch circuit

Intake shutter

ECM

P0500
(05±640)Vehicle Speed Sensor ºAº

Open or short in speed sensor circuit

Speed sensor

Combination meter

ECM

Skid control ECU

P0504
(05±643)Brake Switch ºAº/ºBº Correlation

Short in stop lamp switch signal circuit

Stop lamp switch

ECM


P0560
(05±647)System Voltage
Open in back±up power source circuit

ECM
P0606
(05±650)ECM/PCM Processor

ECM



P0607
(05±650)Control Module Performance

ECM

P0622
(05±651)Generator Field ºFº Terminal Cir-
cuit

Open in generator circuit

Generator

Drive belt

ECM

P0627
(05±655)Fuel Pump Control Circuit / Open

Open or shot in suction control valve circuit

Suction control valve

ECM

P1229
(05±563)Fuel Pump System

Short in supply pump (suction control valve) circuit

Suction control valve

ECM

P1238
(05±658)Injector Malfunction

Injector

EDU (P0200 is set simultaneously)

Open or short in engine wire (P0200 is set simultaneously)

Connector connection (P0200 is set simultaneously)

Compression pressure

Valve clearance

Valve timing

ECM

P1251
(05±612)Turbo/Super Charger Overboost
Condition (Too High)

VRV

Open or short in VRV circuit

Turbocharger

EGR valve

Vacuum hose

ECM

P1271
(05±663)Fuel Regulator Circuit Malfunc-
tion (EDU Drive)

Open or short in pressure discharge valve circuit

Open or short in pressure discharge valve it self

EDU

ECM

P1272
(05±663)Fuel Pressure Regulator Mal-
function

Open or short in pressure discharge valve circuit (P1271 is set
simultaneously)

Pressure discharge valve

Supply pump

ECM


A81017
GeneratorGlow Plug ECMGLOW
Relay Battery
A81018
Ignition Switch
Glow Plug
Engine Speed
Starting EngineAfter Glow Time OFFOFF ON ON
OFF After Glow System
(sec.)
1
020
6840
104(
C)
(
F)
After Glow Time
Engine Coolant Temperature 120 05±622
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0380 GLOW PLUG/HEATER CIRCUIT ºAº
CIRCUIT DESCRIPTION
The glow plug is mounted inside the engine combustion room. To ensure efficient engine starting with a cold
engine, the ECM calculates time the current needs to flow into the glow plug depending on the engine cool-
ant temperature after the ignition switch is turned ON. The ECM then turns on the glow relay and permits
the current to flow into the glow plug. The glow plug is then heated and enhances fuel combustion with the
cold engine.
This DTC will be set if there is open in glow plug itself or its circuit.
The ECM performs the after glow for a certain period of time depending on the engine coolant temperature
after the engine has been started. After glow reduces a diesel engine knocking, a white smoke, and etc with
a cold engine.
05CPT±01

±
DIAGNOSTICS AIR CONDITIONING SYSTEM
05±1101
AVENSIS REPAIR MANUAL (RM1018E)
Engine idle up does not occur, or is continuous
1. Air conditioner magnetic valve circut
2. A/C amplifier assy
3. Engine ECU 1AZ±FSE:
1AZ±FE:
1ZZ±FE/3ZZ±FE:
1CD±FTV:05±1151
05±1098 05±294
05±149 05±5
05±528
Set temperature value displayed does not much up with operation
of temperature control switch.1. Air conditioner magnetic valve circut
2. A/C amplifier assy05±1151
05±1098
Brightness does not change when light control switch it turned.1. Illumination light system
2. A/C amplifier assy±
05±1098
Unable to access the diagnosis mode.1. A/C amplifier assy05±1098
DTC is not recorded. Set mode is cleared when IG switch is
turned off.1. Back±up power source circuit
2. A/C amplifier assy05±1142
05±1098
Hot gas heater:
SymptomSuspect AreaSee page
Warm wind does not blow out even if the gas heater switch is
turned on before the water temperature rises under the condition
where the ordinal A/C correctly operates.1. Hot gas heater magnetic valve circuit
2. Hot gas heater switch circuit
3. A/C amplifier assy05±1157
05±1159
05±1098

I35419
A10A9
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1099
AVENSIS REPAIR MANUAL (RM1018E)Terminal No. (Symbols)Specification Condition Wiring Color
A16±22 (TR) ±
A16±6 (SG±5)GR ± GIG SW: ON
Cabin temp.: 25
C (77
F)
40
C (104
F)1.8 to 2.2
1.2 to 1.6 V
A16±10 (TE) ±
A15±16 (SG±4)B ± W±GEvaporator temp.: 0
C (32
F)
15
C (59
F)2.0 to 2.4
1.4 to 1.8 V
A16±23 (ILL+) ±
A16±13 (GND)G ± W±BLight control switch TAIL or HEAD10 to 14 V
A16±19 (TPM) ±
A15±15 (SG±3)GR±R ± G±WIG SW: ON
Set air flow setting: DEF.
FACE1.0
4.0 V
A15±8 (SOL+) ±
A16±13 (GND)R ± W±BStart engine
Compressor: OperatePulse generation
A15±7 (MGV) ±
A16±13 (GND) (*1)R±Y ± W±BStart engine
Hot gas heater: Operate10 to 14
Below 1.0 V
A16±11 (HOTGASIN) ±
A16±13 (GND) (*1)G±Y ± W±BIG SW: ON
Hot Gas SW: ON10 to 14 V
A16±16 (S5) ±
A16±18 (SG)B±W ± G±WIG SW: LOCK
ON0
5.0 V
A16±1 (S5±1) ±
A15±13 (SG±1)R ± PIG SW: LOCK
ON0
5.0 V
A16±2 (S5±2) ±
A15±14 (SG±2)Y±B ± Y±RIG SW: LOCK
ON0
5.0 V
A16±14 (S5±3) ±
A15±15 (SG±3)BR±W ± G±WIG SW: LOCK
ON0
5.0 V
A16±15 (S5±4) ±
A16±9 (TSD)O ± LGIG SW: LOCK
ON1.7
4.2 V
A16±15 (S5±4) ±
A16±21 (TSP)O ± LIG SW: LOCK
ON1.7
4.2 V
A15±17 (CFAN) ±
A16±13 (GND)W±R ± W±BStart engine
Condenser fan: operate10 to 14
Below 1.0 V
A16±19 (PBKIG) ±
A17±13 (GND)B±W ± W±BIG SW: ON
PARKING BRAKE SW: OFF
ON10 to 14
Below 1.0 V
A17±3 (PBLT) ±
A17±13 (GND) (*3)L±R ± W±BIG SW: ON
SEAT BELT SIGNAL: OFF
ON10 to 14
Below 1.0 V
A17±4 (RDEFIN) ±
A17±13 (GND) (*2)G±W ± W±BIG SW: ON
RDEF RELAY : OFF
ONBelow 1.0
10 to 14 V
(*1) Diesel (standard) only
(*2) Petrol only
(*3) Except 1AZ±FE
2. COMBINATION METER
Terminal No. (Symbols)Wiring ColorConditionSpecification
C10±17 (Z1H) ±
Body groundW±B ± Body groundAlwaysContinuity
C10±11 (HAY) ±
C10±12 (HAZ)W±R ± WIG SW: ON
Ambient temp.: 25
C (77
F)
40
C (104
F)1.35 to 1.75

0.85 to 1.25 V