Toyota Tundra (2015 year). Manual — part 1103
If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and
check for permanent DTCs
.
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
12.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
If DTC P0013 is displayed, check the bank 1 VVT system for exhaust camshaft circuit.
Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
If DTC P0023 is displayed, check the bank 2 VVT system for exhaust camshaft circuit.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
Read freeze frame data using the Techstream. Freeze frame data records the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other
data from the time the malfunction occurred.
PROCEDURE
1.
CHECK FOR DTC (DTC P0013 OR P0023)
(a) Connect the Techstream to the DLC3.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0013,P0023;...
OK
(b) Clear DTCs after recording the freeze frame data and DTC.
(c) Turn the ignition switch off.
(d) Allow the engine to idle and check for DTCs.
(e) Check that P0013 or P0023 is not present.
OK:
P0013 or P0023 is not present.
NG
GO TO STEP 2
OK
CHECK FOR INTERMITTENT PROBLEMS
2.
INSPECT CAMSHAFT OIL CONTROL VALVE ASSEMBLY
(a) Disconnect the OCV connector.
(b) Remove the OCV
.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
1 - 2
20°C (68°F)
6.9 to 7.9 Ω
NG
REPLACE CAMSHAFT OIL CONTROL VALVE
ASSEMBLY
3.
CHECK HARNESS AND CONNECTOR (OCV - ECM)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0013,P0023;...
(a) Disconnect the OCV connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D44-1 - D74-56 (OE1+)
Always
Below 1 Ω
D44-2 - D74-55 (OE1-)
Always
Below 1 Ω
D45-1 - D74-50 (OE2+)
Always
Below 1 Ω
D45-2 - D74-49 (OE2-)
Always
Below 1 Ω
D44-1 or D74-56 (OE1+) - Body ground
Always
10 kΩ or higher
D44-2 or D74-55 (OE1-) - Body ground
Always
10 kΩ or higher
D45-1 or D74-50 (OE2+) - Body ground
Always
10 kΩ or higher
D45-2 or D74-49 (OE2-) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE ECM
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0013,P0023;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000XH80LJX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0014,P0015,P0024,P0025; Camshaft Position "B" -
Timing Over-Advanced or System Performance (Bank 1); 2015 MY Tundra [08/2014 - ]
DTC
P0014
Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank
1)
DTC
P0015
Camshaft Position "B" - Timing Over-Retarded (Bank 1)
DTC
P0024
Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank
2)
DTC
P0025
Camshaft Position "B" - Timing Over-Retarded (Bank 2)
DESCRIPTION
HINT:
If DTC P0014, P0015, P0024 or P0025 is present, check the VVT (Variable Valve Timing) system.
The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT controller. The ECM sends a target
duty-cycle control signal to the OCV. This control signal regulates the oil pressure supplied to the VVT controller.
Camshaft timing control is performed according to engine operating conditions such as the intake air volume,
throttle valve position and engine coolant temperature. The ECM controls the OCV based on the signals
transmitted by several sensors. The VVT controller regulates the exhaust camshaft angle using oil pressure
detects the actual exhaust valve timing using signals from the camshaft and crankshaft position sensors, and
performs feedback control. This is how the target exhaust valve timing is verified by the ECM.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0014,P0015,...
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