Toyota Tundra (2015 year). Manual — part 2017
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
1.
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, P2197 OR
P2198)
(a) Connect the Techstream to the DLC3.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
A
YES
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read DTCs.
Result
RESULT
PROCEED
TO
DTC P2195, P2196, P2197 or P2198 is output
A
"DTC P2195, P2196, P2197 or P2198" and "DTC P0136, P0137, P0138, P0156, P0157 or P0158"
are output
A
DTC P2195, P2196, P2197 or P2198 and other DTCs are output
B
HINT:
If any DTCs relating to the air fuel ratio sensor (DTCs for the air fuel ratio sensor heater or air fuel ratio
sensor admittance) are output, troubleshoot those DTCs first.
B
GO TO DTC CHART
2.
CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST
GO TO STEP 4
3.
PERFORM CONFIRMATION DRIVING PATTERN
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs
.
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Turn the ignition switch to ON and turn the Techstream on.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
(g) Start the engine and warm it up.
(h) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving
Pattern.
(i) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
(j) Input the DTC: P2195, P2196, P2197 or P2198.
(k) Check the DTC judgment result.
Result
RESULT
PROCEED TO
NORMAL (DTC is not output)
A
ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output)
B
B
GO TO STEP 4
A
DTC CAUSED BY RUNNING OUT OF FUEL
4.
READ VALUE USING TECHSTREAM (TEST VALUE OF A/F SENSOR)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear DTCs
.
(e) Drive the vehicle in accordance with the drive pattern described in Confirmation Driving
Pattern.
(f) Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2
Sensor / Current.
(h) Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2
Sensor / Details / RANGE B1S1 or RANGE B2S1.
RESULT
PROCEED TO
Within normal range (0.7 mA or higher, and below 2.2 mA)
A
Outside normal range (below 0.7 mA, or 2.2 mA or higher)
B
B
GO TO STEP 14
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
A
5.
READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF A/F SENSOR)
(a) Connect the Techstream to the DLC3.
(b) Start the engine.
(c) Turn the Techstream on.
Volume for A/F Sensor.
(f) Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.
HINT:
INJECTION VOLUME
STATUS
VOLTAGE
AFS Voltage B1S1 or AFS Voltage B2S1
(Air fuel ratio)
+12.5%
Rich
Below 3.1 V
-12.5%
Lean
Higher than 3.4 V
O2S B1S2 or O2S B2S2
(Heated oxygen)
+12.5%
Rich
Higher than 0.55 V
-12.5%
Lean
Below 0.4 V
Result
STATUS OF AFS VOLTAGE
B1S1 OR AFS VOLTAGE B2S1
STATUS OF O2S B1S2
OR O2S B2S2
AIR FUEL RATIO CONDITION AND AIR
FUEL RATIO SENSOR CONDITION
PROCEED
TO
Lean
Lean
Actual air fuel ratio lean
A
Rich
Rich
Actual air fuel ratio rich
A
Lean
Lean/Rich
Air fuel ratio sensor malfunction
B
Rich
Lean/Rich
Air fuel ratio sensor malfunction
B
Lean/Rich
Lean/Rich
Normal
B
Lean: During the Control the Injection Volume Active Test, the air fuel ratio sensor output voltage (AFS
Voltage) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S) is
consistently below 0.4 V.
Rich: During the Control the Injection Volume Active Test, the AFS Voltage is consistently below 3.1 V, and the
O2S is consistently higher than 0.55 V.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
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