Toyota Tundra (2015 year). Manual — part 1924
P0343: VVT position sensor (for Bank 1) range check (high
voltage)
P0345: VVT sensor (for Bank 2) verify pulse input
P0345: VVT sensor (for Bank 2) range check (chattering)
P0347: VVT position sensor (for Bank 2) range check (low voltage)
P0348: VVT position sensor (for Bank 2) range check (high
voltage)
Required Sensors/Components (Main)
VVT position sensor (for Bank 1 and 2)
Required Sensors/Components
(Related)
Crankshaft position sensor
Duration
5 seconds: P0340, P0345
4 seconds: Others
MIL Operation
Immediate
TYPICAL ENABLING CONDITIONS
All
Monitor runs whenever following DTCs are not stored
None
P0340, P0345 (Verify Pulse Input)
Engine speed
600 rpm or more
Battery voltage
8 V or more
Starter
OFF
Ignition switch
ON
VVT sensor voltage
0.3 to 4.7 V
VVT sensor range check low voltage fail (P0342, P0347)
Not detected
VVT sensor range check high voltage fail (P0343, P0348)
Not detected
P0342, P0343, P0347, P0348 (Low Voltage, High Voltage)
Starter
OFF
Ignition switch
ON
Time after ignition switch off to ON
2 seconds or more
VVT sensor verify pulse input fail (P0340, P0345)
Not detected
Battery Voltage
8 V or more
TYPICAL MALFUNCTION THRESHOLDS
P0340, P0345 (Verify pulse input):
VVT sensor signal
No signal
P0342, P0347 (Low voltage):
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0340,P0342...
VVT sensor voltage
Less than 0.3 V
P0343, P0348 (High voltage):
VVT sensor voltage
More than 4.7 V
COMPONENT OPERATING RANGE
VVT sensor voltage
0.3 to 4.7 V
CONFIRMATION DRIVING PATTERN
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON and turn the Techstream on.
2.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
3.
Turn the ignition switch off and wait for at least 30 seconds.
4.
Turn the ignition switch to ON and turn the Techstream on [A].
5.
Start the engine.
6.
Idle the engine for 10 seconds or more [B].
7.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
8.
Read the Pending DTCs.
HINT:
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
9.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10.
Input the DTC: P0340, P0342, P0343, P0345, P0347 or P0348.
11.
Check the DTC judgment result.
TESTER
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
12.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0340,P0342...
TESTER
DISPLAY
DESCRIPTION
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
N/A
Unable to perform DTC judgment
HINT:
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, perform steps [B] and [C] again.
If 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.
13.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was moving or stationary, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0340,P0342...
OK
.
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.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE)
(a) Disconnect the D37 or D39 VVT sensor connector.
(b) Measure the voltage according to the value(s) in the
table below.
Standard voltage:
Bank 1
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
D37-3 (VC) - Body
ground
Ignition switch ON
4.5 to 5.0 V
Bank 2
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
D39-3 (VC) - Body
ground
Ignition switch ON
4.5 to 5.0 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
2.
CHECK HARNESS AND CONNECTOR (VVT SENSOR FOR INTAKE CAMSHAFT - ECM)
(a) Disconnect the D37 or D39 VVT sensor connector.
(b) Disconnect the D74 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D37-1 (VVL+) - D74-92 (VV1+)
Always
Below 1 Ω
D37-2 (VVL-) - D74-91 (VV1-)
Always
Below 1 Ω
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0340,P0342...
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст