Page 1204 of 3115
Q30018
- DIAGNOSTICSENGINE
DI-155
348 Author: Date:
2004 LAND CRUISER (RM1071U)
9 Check output voltage of heated oxygen sensor (bank 1, 2 sensor 1) during id-
ling.
PREPARATION:
(a) Warm up the heated oxygen sensor with the engine speed at 2,500 rpm for approximately 90 seconds.
(b) Connect the hand-held tester or OBD II scan tool to the DLC3.
(c) When using hand-held tester, enter the following menu: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / O2S B1 S1 or B2 S1.
CHECK:
Check the output voltage of the heated oxygen sensor during idling using the OBD II scan tool or hand-held
tester.
OK:
Heated oxygen sensor output voltage:
Alternates between less than 0.4 V and more than 0.55 V (See the following table).
.
OK Go to step 17.
NG
Page 1222 of 3115
- DIAGNOSTICSENGINE
DI-173
366 Author: Date:
2004 LAND CRUISER (RM1071U)
Be sure to check the value on the misfire counter after the repair.
1 Are there any other codes (besides DTC P0300, P0301, P0302, P0303, P0304
P0305, P0306, P0307 or P0308) being output?
PREPARATION:
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester or OBD II scan tool main switch ON.
(c) When using hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTC using hand-held tester or the OBD II scan tool.
RESULT:
Display (DTC Output)Proceed to
ºP0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or
P0308ºA
ºP0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or
P0308º and other DTCsB
HINT:
If any other codes besides ºP0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308º are
output, perform the troubleshooting for those DTC.
B Go to relevant DTC chart (See page DI-36).
A
2 Check wire harness, connector and vacuum hose in engine room.
CHECK:
(a) Check the connection conditions of the wire harness and connector.
(b) Check for the disconnection, piping and brake of the vacuum hose.
NG Repair or replace, then confirm that there is no
misfire (See confirmation driving pattern).
OK
3 Check connection of PCV piping.
NG Repair or replace PCV piping.
OK
Page 1223 of 3115
DI-174
- DIAGNOSTICSENGINE
367 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Connect hand-held tester, and read the number of misfire.
PREPARATION:
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester or the OBD II scan tool main switch ON.
(c) Start the engine.
(d) When using hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / CYL#1 to CYL#8.
CHECK:
Read the number of misfire on the hand-held tester or the OBD II scan tool.
HINT:
When a misfire is not reproduced, be sure to branch below based on the stored DTC.
RESULT:
High Misfire Rate CylinderProceed to
1 or 2 cylindersA
More than 3 cylindersB
B Go to step 15.
A
Page 1268 of 3115
- DIAGNOSTICSENGINE
DI-219
412 Author: Date:
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
1 Are there any other codes (besides DTC P0420 or P0430) being output?
PREPARATION:
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester or OBD II scan tool main switch ON.
(c) When using hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTC using the hand-held tester or the OBD II scan tool.
RESULT:
Display (DTC Output)Proceed to
ºP0420 and/or P0430ºA
ºP0420 or P0430º and other DTCsB
HINT:
If any other codes besides ºP0420 and/or P0430º are output, perform the troubleshooting for those DTCs
first.
B Go to relevant DTC chart (See page DI-36).
A
2 Check gas leakage on exhaust system.
NG Repair or replace exhaust gas leakage point.
OK
3 Check heated oxygen sensor (bank 1, 2 sensor 1) (See page SF-57).
HINT:
Refer to the hint following the end of this flowchart.
NG Replace heated oxygen sensor.
OK
Page 1337 of 3115
DI-288
- DIAGNOSTICSENGINE
481 Author: Date:
2004 LAND CRUISER (RM1071U) Range check:
Missing output duty change
INSPECTION PROCEDURE
HINT:
When the throttle position is slightly opened (the accelerator pedal is slightly depressed) because a
floor carpet is overlapped on the accelerator pedal, or if not fully releasing the accelerator pedal, etc.,
DTC P0505 will possibly be detected.
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel
ratio was lean or rich, as well as other data from the time when a malfunction occurred.
1 Are there any other codes (besides P0505) being output?
PREPARATION:
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester or OBD II scan tool main switch ON.
(c) When using hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTC using the hand-held tester or the OBD II scan tool.
RESULT:
Display (DTC Output)Proceed to
P0505A
ºP0505º and other DTCsB
HINT:
If any other codes besides P0505 are output, perform the troubleshooting for those DTCs first.
B Go to relevant DTC chart (See page DI-36).
A
2 Check connection of PCV piping.
NG Repair or replace PCV piping.
OK
Page 1347 of 3115
DI-298
- DIAGNOSTICSENGINE
491 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
Hand-held tester:
1 Connect hand-held tester, and check STA signal.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON, and push the hand-held tester main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
CHECK:
Read the STA signal on the hand-held tester while the starter operates.
OK:
Ignition Switch PositionONSTART
STA SignalOFFON
OK Go to step 5.
NG
2 Check park/neutral position switch (See page DI-402).
NG Replace park/neutral position switch.
Go to next step 5 after the replacement.
OK
3 Check ignition switch (See page BE-29).
NG Replace ignition switch.
Go the next step 5 after the replacement.
OK
Page 1348 of 3115
- DIAGNOSTICSENGINE
DI-299
492 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Connect hand-held tester, and check STA signal.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON, and push the hand-held tester main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
CHECK:
Read the STA signal on the hand-held tester while the starter operates.
OK:
Ignition Switch PositionONSTART
STA SignalOFFON
NG Repair or replace harness or connector.
OK
5 Check DTC reoccur.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and hand-held tester main switch ON.
(c) Clear DTC (See page DI-3).
(d) Drive the vehicle more than 40 km/h (25 mph) for 20 seconds or more.
CHECK:
Check DTC reoccur.
RESULT:
Display (DTC output)Proceed to
P0617A
No DTC outputB
A Replace ECM (See page SF-60).
B
Check for intermittent problems (See page
DI-3).
Page 1365 of 3115
DI-316
- DIAGNOSTICSENGINE
509 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL MALFUNCTION THRESHOLDS
Detection CriteriaThreshold
Difference between ºtarget throttle positionº and ºactual
throttle positionº0.3 V or more
COMPONENT OPERATING RANGE
Standard Value
Commanded throttle position and current throttle position are nearly same
WIRING DIAGRAM
Refer to DTC P2102 and P2103 on page DI-302.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
1 Are there any other codes (besides DTC P2119) being output?
PREPARATION:
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester or OBD II scan tool main switch ON.
(c) When using hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTC using the hand-held tester or the OBD II scan tool.
RESULT:
Display (DTC Output)Proceed to
P2119A
ºP2119º and other DTCB
HINT:
If any other codes besides P2119 are output, perform the troubleshooting for those DTCs first.
B Go to relevant DTC chart (See page DI-36).
A
