Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VICG
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: 2GR-FE (ENGINE CONTROL): SFI SYSTEM: P0340,P0342,P0343,P0345,P0347,P0348; Camshaft Position Sensor Circuit; 2016 MY Sienna [12/2015 - 08/2016]

DTC

P0340

Camshaft Position Sensor Circuit

DTC

P0342

Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)

DTC

P0343

Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)

DTC

P0345

Camshaft Position Sensor "A" Circuit (Bank 2)

DTC

P0347

Camshaft Position Sensor "A" Circuit Low Input (Bank 2)

DTC

P0348

Camshaft Position Sensor "A" Circuit High Input (Bank 2)

DESCRIPTION

The VVT sensor (for intake side) (VV1, VV2 signal) consists of a magnet and MRE (Magneto Resistive Element).

The camshaft timing gear assembly has a sensor plate with 3 teeth on its outer circumference. When the gear rotates, changes occur in the air gaps between the sensor plate and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the gear rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM.

The crank angle sensor plate has 34 teeth. The pickup coil generates 34 signals for each engine rotation. Based on combination of the VVT signals and NE signal, the ECM detects the crankshaft angle. Then the ECM uses this data to control fuel injection time and injection timing. Also, based on the NE signal, the ECM detects the engine speed.

DTC No.

DTC Detection Condition

Trouble Area

P0340

Either of the following conditions is met:

  • Missing VVT sensor signal despite crankshaft position sensor inputs normal at engine speed of 600 rpm or more

    (1 trip detection logic)

  • No VVT sensor signal to ECM during cranking

    (2 trip detection logic)

  • Open or short in VVT sensor (for intake side of bank 1) circuit
  • VVT sensor (for intake side of bank 1)
  • Camshaft timing gear assembly (bank 1)
  • Valve timing
  • ECM

P0342

P0347

Output voltage of VVT sensor is less than 0.3 V for 4 seconds

(1 trip detection logic)

  • Open or short in VVT sensor (for intake side of bank 1, 2) circuit
  • VVT sensor (for intake side of bank 1, 2)
  • ECM

P0343

P0348

Output voltage of VVT sensor is more than 4.7 V for 4 seconds

(1 trip detection logic)

  • Open or short in VVT sensor (for intake side of bank 1, 2) circuit
  • VVT sensor (for intake side of bank 1, 2)
  • ECM

P0345

No VVT sensor signal at engine speed of 600 rpm or more

(1 trip detection logic)

  • Open or short in VVT sensor (for intake side of bank 2) circuit
  • VVT sensor (for intake side of bank 2)
  • Camshaft timing gear assembly (bank 2)
  • ECM
  • Reference: Inspection using an oscilloscope

    HINT:

    • The correct waveform is as shown.
    • VV1+ and VV2+ stand for the VVT sensor (for intake side) signal, and NE+ stands for the crankshaft position sensor signal.

    Item

    Content

    ECM Terminal Names

    Between VV1+ and VV1-, VV2+ and VV2-

    Between NE+ and NE-

    Tester Range

    5 V/DIV.

    20 ms./DIV.

    Condition

    Idling with warm engine

MONITOR DESCRIPTION

If no signal is transmitted by the VVT sensor (for intake side) despite the engine revolving, or the rotations of the camshaft and the crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.

MONITOR STRATEGY

Related DTCs

P0340: VVT sensor (for intake side of bank 1) verify pulse input

P0342: VVT sensor (for intake side of bank 1) range check (low voltage)

P0343: VVT sensor (for intake side of bank 1) range check (high voltage)

P0345: VVT sensor (for intake side of bank 2) verify pulse input

P0347: VVT sensor (for intake side of bank 2) range check (low voltage)

P0348: VVT sensor (for intake side of bank 2) range check (high voltage)

Required Sensors / Components (Main)

VVT sensor (for intake side of bank 1, 2)

Required Sensors / Components (Related)

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

4 seconds:

P0340 (VVT sensor (for intake side of bank 1) verify pulse input (case 2))

P0342 and P0347 (VVT sensor (for intake side of bank 1, 2) range check (low voltage))

P0343 and P0348 (VVT sensor (for intake side of bank 1, 2) range check (high voltage))

5 seconds:

P0340 (VVT sensor (for intake side of bank 1) verify pulse input (case 1))

P0345 (VVT sensor (for intake side of bank 2) verify pulse input)

MIL Operation

2 driving cycles:

P0340 (VVT sensor (bank 1) verify pulse input (case 2))

Immediately:

Others

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

All

Monitor runs whenever following DTCs are not present

None

P0340: VVT Sensor (for intake side of bank 1) Verify Pulse Input (Case 1)

Engine speed

600 rpm or more

Starter

Off

VVT system misalignment

Not detected

VVT sensor range check fail (P0342, P0343)

Not detected

VVT sensor voltage

0.3 V or higher, and 4.7 V or less

P0340: VVT Sensor (for intake side of bank 1) Verify Pulse Input (Case 2)

Starter

After off to ON timing

Minimal battery voltage while starter ON

Below 11 V

P0342, P0343: VVT Sensor (for intake side of bank 1) Range Check

Starter

Off

Ignition switch

ON

Time after ignition switch off to ON

2 seconds or more

VVT sensor verify pulse input fail (P0340)

Not detected

Battery voltage

8 V or more

P0345: VVT Sensor (for intake side of bank 2) Verify Pulse Input

Engine speed

600 rpm or more

Starter

Off

VVT sensor range check fail (P0342, P0343, P0347, P0348)

Not detected

VVT sensor voltage

0.3 V or higher, and 4.7 V or less

Battery voltage

8 V or higher

Ignition switch

ON

P0347, P0348: VVT Sensor (for intake side of bank 2) Range Check

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 higher

TYPICAL MALFUNCTION THRESHOLDS

P0340: VVT Sensor (for intake side of bank 1) Verify Pulse Input (Case 1)

Camshaft position and crankshaft position alignment

Misalignment

VVT sensor signal

No signal

P0340: VVT Sensor (for intake side of bank 1) Verify Pulse Input (Case 2)

VVT sensor signal

No signal

P0342, P0347: VVT Sensor (for intake side of bank1, 2) Range Check (Low Voltage)

VVT sensor voltage

Less than 0.3 V

P0343, P0348: VVT Sensor (for intake side of bank1, 2) Range Check (High voltage)

VVT sensor voltage

Higher than 4.7 V

P0345: VVT Sensor (for intake side of bank 2) Verify Pulse Input

VVT sensor signal

No signal

COMPONENT OPERATING RANGE

VVT sensor voltage

0.3 V or higher, and 4.7 V or less

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR ).
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the Techstream on.
  6. Start the engine.
  7. Idle the engine for 10 seconds or more [A].
  8. Enter the following menus: Powertrain / Engine / Trouble Codes [B].
  9. Read pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  11. Input the DTC: P0340.
  12. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    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
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    If the judgment result shows INCOMPLETE or N/A, perform steps [A] through [B] again.

  13. If no pending DTC is output, perform a universal trip and check for permanent DTCs (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR ).

    HINT:

    • If a permanent DTC is output, the system is malfunctioning.
    • If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to DTC P0335 (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: P0335,P0339; Crankshaft Position Sensor "A" Circuit+ ).

CAUTION / NOTICE / HINT

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 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.
  • If no problem is found by this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transaxle.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

PROCEDURE

1.

CHECK VVT SENSOR (FOR INTAKE SIDE) (SENSOR POWER SOURCE)

(a) Disconnect the VVT sensor (for intake side) connectors.

(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

B16-3 (VC) - Body ground

Ignition switch ON

4.5 to 5.5 V

B17-3 (VC) - Body ground

Ignition switch ON

4.5 to 5.5 V

Text in Illustration

*a

Front view of wire harness connector

(to VVT Sensor (for Intake Side))

*b

for Bank 1

*c

for Bank 2

NG

GO TO STEP 8

OK

2.

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE SIDE) - ECM)

(a) Disconnect the B16 and B17 VVT sensor (for intake side) connectors.

(b) Disconnect the B1 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

B16-1 (VVR+) - B1-90 (VV1+)

Always

Below 1 Ω

B16-2 (VVR-) - B1-89 (VV1-)

Always

Below 1 Ω

B17-1 (VVL+) - B1-87 (VV2+)

Always

Below 1 Ω

B17-2 (VVL-) - B1-88 (VV2-)

Always

Below 1 Ω

B16-1 (VVR+) or B1-90 (VV1+) - Body ground

Always

10 kΩ or higher

B16-2 (VVR-) or B1-89 (VV1-) - Body ground

Always

10 kΩ or higher

B17-1 (VVL+) or B1-87 (VV2+) - Body ground

Always

10 kΩ or higher

B17-2 (VVL-) or B1-88 (VV2-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

CHECK SENSOR INSTALLATION (VVT SENSOR (FOR INTAKE SIDE))

(a) Check the VVT sensor (for intake side) installation.

OK:

Sensor is installed correctly.

NG

SECURELY REINSTALL VVT SENSOR (FOR INTAKE SIDE)

OK

4.

CHECK CAMSHAFT TIMING GEAR ASSEMBLY (TEETH OF PLATE)

(a) Check the teeth of the sensor plate.

OK:

Sensor plate teeth do not have any cracks or deformation.

HINT:

Perform "Inspection After Repair" after replacing the camshaft timing gear assembly (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION ).

NG

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

OK

5.

CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN)

2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: P0011,P0012,P0021,P0022; Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)+

NG

CHECK ENGINE MECHANICAL SYSTEM

OK

6.

REPLACE VVT SENSOR (FOR INTAKE SIDE)

(a) Replace the VVT sensor (for intake side) (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): CAMSHAFT POSITION SENSOR: REMOVAL ).

NEXT

7.

CHECK WHETHER DTC OUTPUT RECURS (DTC P0340, P0342, P0343, P0345, P0347 AND/OR P0348)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs (See page 2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR ).

(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.

(g) Start the engine and warm it up.

(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(i) Enter the following menus: Powertrain / Engine / Utility / All Readiness.

(j) Input the P0340, P0342, P0343, P0345, P0347, or P0348.

(k) Check the DTC judgment result.

Result

Result

Proceed to

NORMAL (DTC is not output)

A

ABNORMAL (DTC P0340, P0342, P0343, P0345, P0347, or P0348 is output)

B

HINT:

If the engine does not start, replace the ECM.

A

END

B

REPLACE ECM

8.

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE SIDE) - ECM)

(a) Disconnect the B16 and B17 VVT sensor (for intake side) connector.

(b) Disconnect the B1 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

B16-3 (VC) - B1-67 (VCV1)

Always

Below 1 Ω

B17-3 (VC) - B1-66 (VCV2)

Always

Below 1 Ω

B16-3 (VC) or B1-67 (VCV1) - Body ground

Always

10 kΩ or higher

B17-3 (VC) or B1-66 (VCV2) - Body ground

Always

10 kΩ or higher

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR