Toyota Tundra (2015 year). Manual — part 1909
A
Bank 2 refers to the bank that does not include the No. 1 cylinder.
Sensor 1 refers to the sensor closest to the engine assembly.
Sensor 2 refers to the sensor farthest away from the engine assembly.
PROCEDURE
1.
CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P014C, P014D,
P014E, P014F, P015A, P015B, P015C OR P015D)
(a) Connect the Techstream to the DLC3.
(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 the DTCs.
Result
RESULT
PROCEED TO
DTC P014C, P014D, P014E, P014F, P015A, P015B, P015C or P015D is output
A
DTC P014C, P014D, P014E, P014F, P015A, P015B, P015C or P015D and other DTCs are output
B
HINT:
If any DTCs other than P014C, P014D, P014E, P014F, P015A, P015B, P015C or P015D are output,
troubleshoot those DTCs first.
B
GO TO DTC CHART
2.
INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE)
(a) Inspect the air fuel ratio sensor
.
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor
.
NG
REPLACE AIR FUEL RATIO SENSOR
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P014C-P014F...
OK
OK
OK
NEXT
3.
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
4.
CHECK AIR FUEL RATIO SENSOR
(a) Check that the proper air fuel ratio sensor is installed to the vehicle.
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor
.
NG
REPLACE AIR FUEL RATIO SENSOR
5.
PERFORM CONFIRMATION DRIVING PATTERN
(a) Drive the vehicle according to Confirmation Driving Pattern.
6.
CHECK WHETHER DTC OUTPUT RECURS (DTC P014C, P014D, P014E, P014F,
P015A, P015B, P015C OR P015D)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
(e) Read the DTCs.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P014C-P014F...
A
NEXT
NEXT
Result
RESULT
PROCEED TO
DTC P014C, P014D, P014E, P014F, P015A, P015B, P015C or P015D is output
A
DTC is not output
B
B
CHECK FOR INTERMITTENT PROBLEMS
7.
REPLACE AIR FUEL RATIO SENSOR
(a) Replace the air fuel ratio sensor
.
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor
.
8.
PERFORM CONFIRMATION DRIVING PATTERN
(a) Drive the vehicle according to Confirmation Driving Pattern.
9.
CHECK WHETHER DTC OUTPUT RECURS (DTC P014C, P014D, P014E, P014F,
P015A, P015B, P015C or P015D)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
(e) Read the DTCs.
Result
RESULT
PROCEED TO
DTC is not output
A
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P014C-P014F...
RESULT
PROCEED TO
DTC P014C, P014D, P014E, P014F, P015A, P015B, P015C or P015D is output
B
B
CHECK ENGINE TO DETERMINE CAUSE OF
EXTREMELY RICH OR LEAN ACTUAL AIR FUEL
RATIO
A
END
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P014C-P014F...
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