2005 TOYOTA AVENSIS sensor

± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±373
AVENSIS REPAIR MANUAL (RM1018E)
14 READ OUTPUT DTC(HEATED OXYGEN SENSOR DTCS ARE OUTPUT AGAIN)
(a) Read the DTC using the hand±held tester.
Result:
Display (DTC output)Proceed to
ºP0130, P0150, P2195, P2196, P2197 and/or P2198º are output againA
ºP0130, P0150, P2195, P2196, P2197 and/or P2198º are not output againB
B REPLACE FUEL INJECTOR ASSY
A
REPLACE HEATED OXYGEN SENSOR

05±474
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0705TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)
CIRCUIT DESCRIPTION
The park/neutral position switch goes on when the shift lever is in the N o\
r P shift position. If the shift lever
is moved from the N position to the D position, this signal is used for \
air±fuel ratio correction and for idle speed
control (estimated control), etc.
DTC No.DTC Detection ConditionTrouble Area
P07052 or more switches are ON simultaneously for N, P, D and R
positions (2 trip detection logic)
Short in park/neutral position switch circuit

Park/neutral position switch

ECM
HINT:
After confirming DTC P0705, use the hand±held tester to confirm the park/n\
eutral position switch signal from
the ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALLº.
WIRING DIAGRAM
Refer to DTC P0705 on page 05±938.
INSPECTION PROCEDURE
Refer to DTC P0705 on page 05±938.
05CJ8±01

A81711
ECMManifold Absolute
Pressure Sensor
Brake Booster
Air Cleaner Case
Throttle
Valve
To Cylinder
Intake Manifold Check ValveBrake Booster
Pressure Sensor
05±462
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0556BRAKE BOOSTER PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
CIRCUIT DESCRIPTION
Refer to DTC P0555 on page 05±459.
DTC No.DTC Detection ConditionTrouble Area
P0556
When either one of the following conditions (a), (b), (c) or (d)\
is
satisfied (1 trip detection logic):
(a) If pressure inside the intake manifold is low, the brake
booster internal pressure is 38 kPa (285 mmHg, 11.2
in.Hg) or more higher than the intake manifold internal
pressure and this condition remains for more than 10
sec. (Pressure leaks caused by hose disconnection, etc).
(b) Pressure inside the brake booster stays low or at fixed lev- el, despite the vehicle has driven and stopped 10 times
(Vacuum stuck caused by hose clogged, etc).
(c) While the brake pedal is released, the pressure inside the brake booster is 32 kPa (240 mmHg, 9.4 in.Hg) or more
higher than the intake manifold internal pressure and this
condition remains for more than 1 sec. (Pressure leaks).
(d) After running the engine for more than 100 sec. with the brake pedal released and the negative pressure (vacuum)
has accumulated in the brake booster, the following two
conditions are satisfied despite depressing the brake
pedal for more than 1 sec. (Vacuum stuck):

Internal pressure of the brake booster does not increase

Internal pressure of the brake booster is 32 kPa (240 mmHg,
9.4 in.Hg) or more lower than the internal pressure of the
intake manifold

Vacuum hose (between the brake booster and intake man-
ifold, the brake booster and brake booster pressure sensor,
and the intake manifold and manifold absolute pressure
sensor)

Open or short in brake booster pressure sensor circuit

Brake booster pressure sensor

Manifold absolute pressure sensor

Brake booster

Open or short in stop light switch circuit

Stop light switch

ECM
WIRING DIAGRAM
Refer to DTC P0555 on page 05±459.
05CKO±01

A76903
PB (+)E2 (±)ECM Connector
E13
05±464
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
NGCHECK AND REPAIR STOP LIGHT SWITCH CIRCUIT
OK
4CHECK VACUUM HOSE(BRAKE BOOSTER PRESSURE SENSOR ± BRAKE BOOSTER, INTAKE MANIFOLD ± BRAKE BOOSTER)
(a)Check that the vacuum hoses are connected correctly.
(b)Check that the vacuum hoses are not loose or disconnected.
(c)Check the vacuum hoses and tubes for clogs, cracks, holes, damage, or bl\
ockage.
NGREPAIR OR REPLACE VACUUM HOSE
OK
5INSPECT ECM(PB VOLTAGE)
(a)Disconnect the vacuum hose from the brake booster pressure sensor.
(b)Turn the ignition switch ON.
(c)Using the MITYVAC (Hand±Held Vacuum Pump), apply a vacuum to the brake booster pressure sensor, measure
the voltage between the specified terminals of the E13
ECM connector.
Standard:
Symbols (Terminal No.)Vacuum pump operationSpecified condition
0 kPa
(0 mmHg, 0 in.Hg)3.3 to 3.9 V
PB (E13±26) ± E2 (E13±28)40 kPa
(300 mmHg, 11.8 in.Hg)2.1 to 2.7 V()
80 kPa
(600 mmHg, 23.6 in.Hg)0.9 to 1.5 V
NGGo to step 6
OK
CHECK FUNCTION OF BRAKE BOOSTER (See page 32±17, 32±21)

A81699PBE2
E13
ECM Connector
VC
123
A72877
PIM
E2
Brake Booster Pressure
Sensor Connector Wire Harness SideB2
VC
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±465
AVENSIS REPAIR MANUAL (RM1018E)
6 CHECK HARNESS AND CONNECTOR(ECM ± BRAKE BOOSTER PRESSURE
SENSOR)
(a) Disconnect the E13 ECM connector.
(b) Disconnect the B2 brake booster pressure sensor con-
nector.
(c) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
VC (E13±18) ± VC (B2±3)
PB (E13±26) ± PIM (B2±2)Continuity
E2 (E13±28) ± E2 (B2±1)
y
Standard (Check for short):
Symbols (Terminal No.)Specified condition
VC (E13±18) or VC (B2±3) ± Body groundNo continuityPB (E13±26) or PIM (B2±2) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE BRAKE BOOSTER PRESSURE SENSOR
7 CHECK VACUUM HOSE(MANIFOLD ABSOLUTE PRESSURE SENSOR ± INTAKE
MANIFOLD)
(a) Check that the vacuum hose is connected correctly.
(b) Check that the vacuum hose is not loose or disconnected.
(c) Check the vacuum hose for clogs, cracks, holes, damage, or blockage.
NG REPAIR OR REPLACE VACUUM HOSE
OK

A81699PIME2
E13
ECM Connector
VC
123
A72877
VOUT
GND
Manifold Absolute Pressure
Sensor Connector Wire Harness SideV1
VCC
05±466
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
8 CHECK HARNESS AND CONNECTOR(ECM ± MANIFOLD ABSOLUTE PRESSURE
SENSOR)
(a) Disconnect the E13 ECM connector.
(b) Disconnect the V1 manifold absolute pressure sensor
connector.
(c) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
VC (E13±18) ± VCC (V1±3)
PIM (E13±33) ± VOUT (V1±2)Continuity
E2 (E13±28) ± GND (V1±1)
y
Standard (Check for short):
Symbols (Terminal No.)Specified condition
VC (E13±18) or VCC (V1±3) ± Body groundNo continuityPIM (E13±33) or VOUT (V1±2) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

A76868
B2
Brake Booster Pressure Sensor18
E13 ECM
5V
E1
3
R±W
26
Y
2
1
BR 28
E2PB
VC
PIM
E2 E13
E13
VC
R±W
Y
BR
9
EA1
11
10
EA1
EA1
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±459
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0555BRAKE BOOSTER PRESSURE SENSOR
CIRCUIT
DTCP0557BRAKE BOOSTER PRESSURE SENSOR CIRCUIT LOW INPUT
DTCP0558BRAKE BOOSTER PRESSURE SENSOR CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The brake booster pressure sensor detects internal pressure of the brake bo\
oster as voltage. A structure
of the sensor and its connection to the ECM are the same as ones for the i\
ntake air pressure sensor. (Refer
to DTC P0105 on page 05±342).
In order to purify emission gas when starting a cold engine, drastically\
retard the ignition timing to quickly
activate tha catalyst. Upon this, the throttle valve is opened larger than the throttle opening angle with\
a warm
engine, therefore the intake manifold pressure will be closer to atmospheric pr\
essure. If the negative pres-
sure (vacuum) applied inside the brake booster drops, the ECM cancels the drastic retarding timing and
introduces the negative pressure (vacuum) into the intake manifold, and the ECM \
then resumes the drastic
retarding timing after the brake booster negative pressure (vacuum) is ensured \
at required level.
DTC No.DTC Detection ConditionTrouble Area
P0555Open or short in brake booster pressure sensor circuit for 5
sec. or more

Open or short in brake booster pressure sensor circuit
P0557Open in brake booster pressure sensor circuit for 5 sec. or
more
Oen or short in brake booster ressure sensor circuit

Brake booster pressure sensor

Vacuum hose
P0558Short in brake booster pressure sensor circuit for 5 sec. or
more
ECM
WIRING DIAGRAM
05CKN±01

A76903
E2 (±)VC (+)
ECM Connector
E13
A76903
PB (+)E2 (±)
ECM Connector
E13
05±460
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:

If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may be open.

Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for deter\
mining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ra\
tio was lean or rich, etc. at
the time of the malfunction.
1CHECK VACUUM HOSE(BRAKE BOOSTER PRESSURE SENSOR ± BRAKE BOOSTER, INTAKE MANIFOLD ± BRAKE BOOSTER)
(a)Check that the vacuum hoses are connected correctly.
(b)Check that the vacuum hoses are not loose or disconnected.
(c)Check the vacuum hoses and tubes for clogs, cracks, holes, damage, or bl\
ockage.
NGREPAIR OR REPLACE VACUUM HOSE
OK
2INSPECT ECM(VC VOLTAGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between the specified terminals of the E13 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
VC (E13±18) ± E2 (E13±28)4.5 to 5.5 V
NGCHECK AND REPLACE ECM (See page 01±32)
OK
3 INSPECT ECM(PB VOLTAGE)
(a) Measure the voltage between the specified terminals of the E13 ECM connector.
Standard:
Symbols (Terminal No.)ConditionSpecified condition
PB (E13±26) ±
E2 (E13 28)
Ignition switch ON
(do not start engine)
0.5 to 4.5 VE2 (E13±28)Idling
0.5 to 4.5 V
NG Go to step 4
OK
CHECK FOR INTERMITTENT PROBLEMS