Toyota Tundra (2015 year). Manual — part 1121
OK
NEXT
(a) Disconnect the manifold absolute pressure sensor connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
D80-3 (VC) - D80-2 (E2)
Ignition switch ON
4.5 to 5.5 V
D80-1 (PIM) - D80-2 (E2)
Ignition switch ON
3.0 to 5.0 V
NG
GO TO STEP 5
3.
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
(a) Replace the manifold absolute pressure sensor
.
4.
CHECK WHETHER DTC OUTPUT RECURS
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Clear the DTCs
.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0107,P0108;...
(d) Turn the ignition switch off and wait for at least 30 seconds.
(e) Turn the ignition switch to ON and wait for 2 seconds.
(f) Turn the Techstream on.
(g) Enter the following menus: Powertrain / Engine and ECT / DTC.
(h) Read the DTCs.
Result
DISPLAY (DTC OUTPUT)
PROCEED TO
No DTC output
A
DTC P0107 and/or P0108 output
B
B
REPLACE ECM
A
END
5.
CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)
(a) Disconnect the manifold absolute pressure sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for open):
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0107,P0108;...
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D80-1 (PIM) - D74-97 (PIM)
Always
Below 1 Ω
D80-3 (VC) - D74-66 (VCV2)
Always
Below 1 Ω
D80-2 (E2) - D74-98 (E2)
Always
Below 1 Ω
Standard Resistance (Check for short):
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D80-1 (PIM) or D74-97 (PIM) - Body ground
Always
10 kΩ or higher
D80-3 (VC) or D74-66 (VCV2) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE ECM
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0107,P0108;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000001WPH097X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0111; Intake Air Temperature Sensor 1 Circuit Range
/ Performance; 2015 MY Tundra [08/2014 - ]
DTC
P0111
Intake Air Temperature Sensor 1 Circuit Range / Performance
DESCRIPTION
The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT.
the resistance drops. These variations in resistance are transmitted to the ECM as voltage changes (See
Fig. 1).
changes, according to changes in the IAT, the voltage at terminal THA also varies. Based on this signal, the
ECM increases the fuel injection volume when the engine is cold to improve driveability.
DTC
NO.
DTC DETECTION CONDITION
TROUBLE AREA
P0111
When either condition below is met:
(2 trip detection logic)
The intake air temperature change from the previous trip warm-up to the
following trip is small.
1.
The change in the intake air temperature after engine start is less than
the threshold value.
2.
Mass air flow
meter
MONITOR DESCRIPTION
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0111; Intake A...
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