Page 1160 of 3115
- DIAGNOSTICSENGINE
DI-1 11
304 Author: Date:
2004 LAND CRUISER (RM1071U)
1 Are there any other codes (besides DTC P0130, P0150, P2195, P2197, P2196 or
P2198) 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
ºP0130, P0150, P2195, P2196, P2197 and/or P2198ºA
ºP0130, P0150 P2195, P2196, P2197 or P2198º and other DTCsB
HINT:
If any other codes besides ºP0130, P0150, P2195, P2196, P2197 and/or P2198º are output, perform the
troubleshooting for those DTCs first.
B Go to relevant DTC chart (See page DI-36).
A
Page 1161 of 3115
Q30018
DI-1 12
- DIAGNOSTICSENGINE
305 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check output voltage of heated oxygen sensor during idling.
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 the OBD II scan tool or hand-held tester.
OK:
Heated oxygen sensor output voltage:
Alternates repeatedly between less than 0.4 V and more than 0.5 V (See the following table).
OK Go to step 9.
NG
Page 1172 of 3115
- DIAGNOSTICSENGINE
DI-123
316 Author: Date:
2004 LAND CRUISER (RM1071U)
1 Are there any other codes (besides DTC P0133 or P0153) 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
ºP0133 and/or P0153ºA
ºP0133 or P0153º and other DTCsB
HINT:
If any other codes besides ºP0133 and/or P0153º are output, perform the troubleshooting for those DTCs
first.
B Go to relevant DTC chart (See page DI-36).
A
Page 1173 of 3115
A20315
0.45V
0.35V
DI-124
- DIAGNOSTICSENGINE
317 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check output voltage of heated oxygen sensor during idling.
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 while idling the OBD II scan tool or hand-held tester.
OK:
Heated oxygen sensor output voltage:
Alternates between less than 0.35 V and more than 0.45 V, and period of ºtº must exist less than
0.6 seconds (See the following table).
OK Go to step 9.
NG
Page 1181 of 3115
DI-132
- DIAGNOSTICSENGINE
325 Author: Date:
2004 LAND CRUISER (RM1071U)
The following A/F CONTROL procedure enables the technician to check and graph the voltage output of
the heated oxygen sensors (sensor 1 and 2).
For displaying the graph indication, enter ºACTIVE TEST / A/F CONTROL / USER DATAº then select ºO2S
B1S1 and O2S B1S2º by pressing ºYESº button and push ºENTERº button before pressing ºF4º button.
HINT:
If different DTCs related to different systems terminal E2 as the ground terminal are output simulta-
neously, terminal E2 may be open.
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, it is useful for determin-
ing whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio
was lean or rich, etc. at the time of the malfunction.
A high heated oxygen sensor (sensor 1) voltage (0.5 V or more) could be caused by a rich air fuel mix-
ture. Check for conditions that would cause the engine to run rich.
A low heated oxygen sensor (sensor 1) voltage (0.4 V or less) could be caused by a lean air fuel mix-
ture. Check for conditions that would cause the engine to run lean.
1 Are there any other codes (besides DTCs P0134 and P0154) 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
ºP0134 and/or P0154ºA
ºP0134 or P0154º and other DTCsB
HINT:
If any other codes besides P0134 and/or P0154 are output, perform the troubleshooting for those codes first.
B Go to relevant DTC chart (See page DI-36).
A
Page 1182 of 3115
- DIAGNOSTICSENGINE
DI-133
326 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Connect OBD II scan tool or hand-held tester, and read value for voltage output
of heated oxygen sensor (bank 1, 2 sensor 1).
PREPARATION:
(a) Connect the OBD II scan tool or the hand-held tester to the DLC3.
(b) Warm up the engine to the normal operating temperature.
(c) When using hand-held tester, enter the following menu: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / O2S B1 S1 or B2 S1.
CHECK:
Read the voltage output of the heated oxygen sensors when the engine speed is suddenly increased.
HINT:
Quickly accelerate the engine to 4,000 rpm 3 times by using the accelerator pedal.
OK:
Heated oxygen sensor output a RICH signal (0.45 V or more) at least once.
OK Go to step 12.
NG
3 Check connection of PCV piping.
NG Repair or replace PCV piping.
OK
Page 1192 of 3115
- DIAGNOSTICSENGINE
DI-143
336 Author: Date:
2004 LAND CRUISER (RM1071U)
The following A/F CONTROL procedure enables the technician to check and graph the voltage output of
the heated oxygen sensors.
For displaying the graph indication, first enter ºACTIVE TEST / A/F CONTROL / USER DATA,º then select
º02S B1S1and O2S B1S2º by pressing ºYESº button, and push ºENTERº button before pressing ºF4º button.
HINT:
If different DTCs that are related to different system are output simultaneously while terminal E2 is used
as a ground terminal, terminal E2 may be open.
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, it is useful for determin-
ing whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio
was lean or rich, etc. at the time of the malfunction.
1 Are there any other codes (besides DTC P0136 or P0156) 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 ll scan tool.
RESULT:
Display (DTC Output)Proceed to
P0136A
ºP0136º and other DTCsB
HINT:
If any other codes besides P0136 are output, perform the troubleshooting for those DTCs first.
B Go to relevant DTC chart (See page DI-36).
A
Page 1193 of 3115
A20870
E1 +B
OX
+BHT
OX E1HT H5
H7
H6
H8
Components Side:
Bank1 Sensor1, Bank2 Sensor1
Bank1 Sensor2, Bank2 Sensor2
DI-144
- DIAGNOSTICSENGINE
337 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check output voltage of heated oxygen sensor.
PREPARATION:
(a) Connect the OBD II scan tool or the hand-held tester to the DLC3.
(b) After warming up the engine, run the engine at 2,500 rpm for 3 minutes.
(c) When using hand-held tester, enter the following menu: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / O2S B2 S1 or B2 S2.
CHECK:
Read the voltage output of the heated oxygen sensor when the engine speed is suddenly increased.
HINT:
Quickly accelerate the engine to 4,000 rpm 3 minutes by using the accelerator pedal.
OK:
Heated oxygen sensor output voltage: Alternates from 0.4 V or less to 0.5 V or more.
OK Go to step 6.
NG
3 Check resistance of heated oxygen sensor heater.
PREPARATION:
Disconnect the H5, H6, H7 or H8 heated oxygen sensor con-
nector.
CHECK:
Measure resistance between terminals of the heated oxygen
sensor.
OK:
Tester ConnectionSpecified Condition
HT (H5-1) - +B (H5-2)11 to 16 W (20°C)
HT (H6-1) - +B (H6-2)11 to 16 W (20°C)
HT (H7-1) - +B (H7-2)11 to 16 W (20°C)
HT (H8-1) - +B (H8-2)11 to 16 W (20°C)
NG Replace heated oxygen sensor.
OK
