Toyota Sequoia (2005). Manual — part 63
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DIAGNOSTICS
ENGINE
DI–55
249
DIST DTC CLEAR
Distance after DTC cleared:
Min.: 0 km/h, Max.: 65535 km/h
Equivalent to drive distance after
DTCs were erased
WU CYC DTC CLEAR
Warm–up cycle after DTC cleared:
Min.: 0, Max.: 255
Number of warm–up cycles after
DTC cleared
MODEL CODE
Model code:
Identifying the model code:
UCK30 (2WD), UCK40 (4WD)
ENGINE TYPE
Engine type:
Identifying the engine type:
2UZFE
CYLINDER NUMBER
Cylinder number:
Min.: 0, Max.: 255
Identifying the cylinder number:
8
TRANSMISSION
Transmission type:
Identifying the transmission type:
ECT(5AT)
DESTINATION
Destination
Identifying the destination:
A (America)
MODEL YEAR
Model year:
Min.: 0, Max.: 255
Identifying the model year:
200#
SYSTEM
System identification
Identifying the engine system:
GASLIN (gasoline engine)
AI STATUS
AI operation prohibit:
OK or NG
OK
*
1
: If no idling conditions are specified, the transmission gear selector lever should be in the N or P position,
and the A/C switch and all accessory switches should be OFF.
2.
ACTIVE TEST
HINT:
Performing an ACTIVE TEST enables components including the relays, VSV (Vacuum Switching Valve),
and actuators, to be operated without removing any parts. The ACTIVE TEST can be performed with a
hand–held tester. Performing an ACTIVE TEST as the first step of troubleshooting is one method of shorten-
ing diagnostic time.
DATA LIST can be displayed during ACTIVE TESTs.
(a)
Connect a hand–held tester to the DLC3.
(b)
Turn the ignition switch to ON.
(c)
Turn the tester ON.
(d)
Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.
(e)
Perform the ACTIVE TEST by referring to the table below.
Hand–held Tester Displays
Test Details
Control Ranges
Diagnostic Notes
INJ VOL
Change injection volume
Between –12 % and 25 %
All injectors tested at the same
time
Perform test at less than 3,000
rpm
Injection volume can be changed
in 1 % graduations within control
range
A/F CONTROL
Change injection volume
Lower by 12.5 % or increase by 25
%
Perform test at less than 3,000
rpm
A/F CONTROL enables checking
and graphing of A/F (Air Fuel Ra-
tio) sensor and Heated Oxygen
(HO2) sensor voltage outputs
To conduct test, select following
menu items: ACTIVE TEST / A/F
CONTROL / USER DATA / AFS
B1S1 and O2S B1S2, and press
YES and ENTER followed by F4
EVAP VSV (ALONE)
Activate EVAP VSV control
ON/OFF
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DI–56
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DIAGNOSTICS
ENGINE
250
VVT CTRL B1
Turn on and off OCV
(Oil Control Valve)
ON/OFF
Engine stalls or idles roughly
when OCV turned ON
Normal engine running or idling
when OCV off
VVT CTRL B2
Turn on and off OCV
(Oil Control Valve)
ON/OFF
Engine stalls or idles roughly
when OCV turned ON
Normal engine running or idling
when OCV off
A/C CUT SIG
Control A/C cut signal
ON/OFF
–
FUEL PUMP/SPD
Activate fuel pump (C/OPN Relay)
ON/OFF
–
TC/TE1
Turn on and off TC and TE1 con-
nection
ON/OFF
ON: TC and TE1 connected
OFF: TC and TE1 disconnected
FC IDL PROHBT
Prohibit idling fuel cut control
ON/OFF
–
ETCS OPEN SLOW
Throttle actuator
ON: throttle valve opens slowly
This test is possible when the fol-
lowing conditions are met:
Ignition switch ON
Engine does not start
Fully depressing accelerator ped-
al (APP: 58 degrees or more)
ETCS CLOSE SLOW
Throttle actuator
ON: throttle valve closes slowly
Same as above
ETCS OPEN FAST
Throttle actuator
ON: throttle valve opens fast
Same as above
ETCS CLOSE FAST
Throttle actuator
ON: throttle valve closes fast
Same as above
FUEL CUT #1
Cylinder #1 injector fuel cut
ON/OFF
This test is possible during vehicle
stopping and engine idling.
FUEL CUT #2
Cylinder #2 injector fuel cut
ON/OFF
Same as above
FUEL CUT #3
Cylinder #3 injector fuel cut
ON/OFF
Same as above
FUEL CUT #4
Cylinder #4 injector fuel cut
ON/OFF
Same as above
FUEL CUT #5
Cylinder #5 injector fuel cut
ON/OFF
Same as above
FUEL CUT #6
Cylinder #6 injector fuel cut
ON/OFF
Same as above
FUEL CUT #7
Cylinder #7 injector fuel cut
ON/OFF
Same as above
FUEL CUT #8
Cylinder #8 injector fuel cut
ON/OFF
Same as above
VENT VALVE (ALONE)
Activate vent valve
(built into pump module)
ON/OFF
–
VCUUM PUMP
Activate vacuum pump
(built into pump module)
ON/OFF
–
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DIAGNOSTICS
ENGINE
DI–57
251
3.
SYSTEM CHECK
HINT:
Performing a SYSTEM CHECK enables the system, which consists of multiple actuators, to be operated
without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect poten-
tial malfunctions in the system. The SYSTEM CHECK can be performed with a hand–held tester.
(a)
Connect a hand–held tester to the DLC3.
(b)
Turn the ignition switch to ON.
(c)
Turn the tester ON.
(d)
Select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK.
(e)
Perform the SYSTEM CHECK by referring to the table below.
Hand–held Tester Displays
Test Details
Recommended Fuel Temperatures
Diagnostic Notes
EVAP SYS CHECK
(AUTO OPERATION)
Perform 5 steps in order to oper-
ate EVAP key–off monitor auto-
matically
35
C (95
F) or less
If no DTCs in PENDING CODE
after performing this test, system
functioning normally
Refer to EVAP Inspection Proce-
dure on page
EVAP SYS CHECK
(MANUAL OPERATION)
Perform 5 steps in order to oper-
ate EVAP key–off monitor manual-
ly
35
C (95
F) or less
Used to detect malfunctioning
parts
Refer to EVAP Inspection Proce-
dure on page
AI INJ CHECK
(AUTO OPERATION)
Perform 6 steps in order to oper-
ate air injection system automati-
cally
–
If no DTCs in PENDING CODE
after performing this test, system
functioning normally
AI INJ CHECK
(MANUAL OPERATION)
Perform 8 operations in order to
operate air injection system moni-
tor manually
–
Used to detect malfunctioning
parts
DI3HB–12
DI–58
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DIAGNOSTICS
ENGINE
252
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in check mode, check the circuit for 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.
DTC No.
(See page)
Detection Item
Trouble Area
MIL
*1
Memory
P0010
(
Camshaft Position ”A” Actuator
Circuit (Bank 1)
Open or short in OCV circuit
OCV
ECM
P0011
(
Camshaft Position ”A” –Timing
Over– Advanced or System Per-
formance (Bank 1)
Valve timing
OCV
VVT controller assembly
ECM
P0012
(
Camshaft Position ”A” –Timing
Over– Retarded (Bank 1)
Valve timing
OCV
VVT controller assembly
ECM
P0016
(
Crankshaft Position – Camshaft
Position Correlation (Bank 1
Sensor A)
Open or short in VVT sensor circuit
VVT sensor
ECM
P0018
(
Crankshaft Position – Camshaft
Position Correlation (Bank 2
Sensor A)
Open or short in VVT sensor circuit
VVT sensor
ECM
P0020
(
Camshaft Position ”A” Actuator
Circuit (Bank 2)
Open or short in OCV circuit
OCV
ECM
P0021
(
Camshaft Position ”A” –Timing
Over– Advanced or System Per-
formance (Bank 2)
Valve timing
OCV
VVT controller assembly
ECM
P0022
(
Camshaft Position ”A” –Timing
Over– Retarded (Bank 2)
Valve timing
OCV
VVT controller assembly
ECM
P0031
(
Oxygen (A/F) Sensor Heater
Control Circuit Low (Bank 1 Sen-
sor 1)
Open in heater circuit of A/F sensor
A/F sensor heater
A/F relay
ECM
P0032
(
Oxygen (A/F) Sensor Heater
Control Circuit High (Bank 1
Sensor 1)
Short in heater circuit of A/F sensor
A/F sensor heater
A/F relay
ECM
P0037
(
Oxygen Sensor Heater Control
Circuit Low (Bank 1 Sensor 2)
Open in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
EFI relay
ECM
P0038
(
Oxygen Sensor Heater Control
Circuit High (Bank 1 Sensor 2)
Short in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
EFI relay
ECM
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