Toyota Sequoia (2005). Manual - part 63

 

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Toyota Sequoia (2005). Manual - part 63

 

 

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

DI–56

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

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 

DI–460

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 

DI–460

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

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

(

DI–73

)

Camshaft Position ”A” Actuator

Circuit (Bank 1)



Open or short in OCV circuit



OCV



ECM





P0011

(

DI–79

)

Camshaft Position ”A” –Timing

Over– Advanced or System Per-

formance (Bank 1)



Valve timing



OCV



VVT controller assembly



ECM





P0012

(

DI–79

)

Camshaft Position ”A” –Timing

Over– Retarded (Bank 1)



Valve timing



OCV



VVT controller assembly



ECM





P0016

(

DI–85

)

Crankshaft Position – Camshaft

Position Correlation (Bank 1

Sensor A)



Open or short in VVT sensor circuit



VVT sensor



ECM





P0018

(

DI–85

)

Crankshaft Position – Camshaft

Position Correlation (Bank 2

Sensor A)



Open or short in VVT sensor circuit



VVT sensor



ECM





P0020

(

DI–73

)

Camshaft Position ”A” Actuator

Circuit (Bank 2)



Open or short in OCV circuit



OCV



ECM





P0021

(

DI–79

)

Camshaft Position ”A” –Timing

Over– Advanced or System Per-

formance (Bank 2)



Valve timing



OCV



VVT controller assembly



ECM





P0022

(

DI–79

)

Camshaft Position ”A” –Timing

Over– Retarded (Bank 2)



Valve timing



OCV



VVT controller assembly



ECM





P0031

(

DI–88

)

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

(

DI–88

)

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

(

DI–93

)

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

(

DI–93

)

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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