Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Camshaft Position Sensor "B" Bank 1 Circuit Short to Ground (P036511,P036515,P039011,P039015)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / 2gr-fks Engine Control / Sfi System / Camshaft Position Sensor "B" Bank 1 Circuit Short to Ground (P036511,P036515,P039011,P039015)

DESCRIPTION

The VVT sensor (for exhaust camshaft) (EV1, EV2 signal) consists of a magnet and MRE (Magneto Resistance Element).

The exhaust camshaft has a timing rotor for the VVT sensor. When the exhaust camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM. Then the ECM uses this data to control fuel injection duration, injection timing and the Variable Valve Timing (VVT) system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P036511

Camshaft Position Sensor "B" Bank 1 Circuit Short to Ground

The VVT sensor (for exhaust camshaft of bank 1) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).

  • Open or short in VVT sensor (for exhaust camshaft of bank 1) circuit
  • VVT sensor (for exhaust camshaft of bank 1)
  • ECM

Comes on

DTC stored

SAE Code: P0367

P036515

Camshaft Position Sensor "B" Bank 1 Circuit Short to Battery or Open

The VVT sensor (for exhaust camshaft of bank 1) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).

  • Open or short in VVT sensor (for exhaust camshaft of bank 1) circuit
  • VVT sensor (for exhaust camshaft of bank 1)
  • ECM

Comes on

DTC stored

SAE Code: P0368

P039011

Camshaft Position Sensor "B" Bank 2 Circuit Short to Ground

The VVT sensor (for exhaust camshaft of bank 2) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).

  • Open or short in VVT sensor (for exhaust camshaft of bank 2) circuit
  • VVT sensor (for exhaust camshaft of bank 2)
  • ECM

Comes on

DTC stored

SAE Code: P0392

P039015

Camshaft Position Sensor "B" Bank 2 Circuit Short to Battery or Open

The VVT sensor (for exhaust camshaft of bank 2) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).

  • Open or short in VVT sensor (for exhaust camshaft of bank 2) circuit
  • VVT sensor (for exhaust camshaft of bank 2)
  • ECM

Comes on

DTC stored

SAE Code: P0393

Reference: Inspection using an oscilloscope.

Click here

MONITOR DESCRIPTION

If the output voltage transmitted by the VVT sensor (for exhaust camshaft) remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs

P0367: Exhaust VVT sensor (bank 1) range check (low voltage)

P0368: Exhaust VVT sensor (bank 1) range check (high voltage)

P0392: Exhaust VVT sensor (bank 2) range check (low voltage)

P0393: Exhaust VVT sensor (bank 2) range check (high voltage)

Required Sensors/Components (Main)

VVT sensor (for exhaust camshaft)

Required Sensors/Components (Related)

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

4 seconds

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

P0367 and P0368: Exhaust VVT Sensor (Bank 1) Range Check (Low Voltage, High Voltage)

All of the following conditions are met

-

Starter

Off

Engine switch

On (IG)

Time after engine switch off to on (IG)

2 seconds or more

Exhaust VVT sensor verify pulse input fail (P0365)

Not detected

Battery voltage

8 V or higher

P0392 and P0393: Exhaust VVT Sensor (Bank 2) Range Check (Low Voltage, High Voltage)

All of the following conditions are met

-

Starter

Off

Engine switch

On (IG)

Time after engine switch off to on (IG)

2 seconds or more

Exhaust VVT sensor verify pulse input fail (P0390)

Not detected

Battery voltage

8 V or higher

TYPICAL MALFUNCTION THRESHOLDS

P0367 and P0392: Exhaust VVT Sensor Range Check (Low Voltage)

Exhaust VVT sensor voltage

Less than 0.3 V

P0368 and P0393: Exhaust VVT Sensor Range Check (High Voltage)

Exhaust VVT sensor voltage

Higher than 4.7 V

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the engine switch off and wait for at least 30 seconds.
  6. Turn the engine switch on (IG) [A].
  7. Turn the Techstream on.
  8. Wait for 5 seconds or more [B].
  9. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  10. 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.
  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  12. Input the DTC: P036511, P036515, P039011 or P039015.
  13. 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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • [A] to [C]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

  • 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.
  • 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.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR

*a

Front view of wire harness connector

(to VVT Sensor (for Exhaust Camshaft))

*b

Bank 1

*c

Bank 2

HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

(a) Disconnect the VVT sensor (for exhaust camshaft) connector.

(b) Turn the engine switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

C16-3 (VC2) - Body ground

Engine switch on (IG)

4.5 to 5.5 V

C17-3 (VC2) - Body ground

Engine switch on (IG)

4.5 to 5.5 V

C16-1 (EX+) - Body ground

Engine switch on (IG)

3.0 to 5.0 V

C17-1 (EX+) - Body ground

Engine switch on (IG)

3.0 to 5.0 V

(d) Turn the engine switch off and wait for at least 30 seconds.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C16-3 (VC2) - C16-1 (EX+)

Engine switch off

1.425 to 1.575 kΩ

C17-3 (VC2) - C17-1 (EX+)

Engine switch off

1.425 to 1.575 kΩ

C16-2 (EX-) - Body ground

Always

Below 1 Ω

C17-2 (EX-) - Body ground

Always

Below 1 Ω

OK

REPLACE VVT SENSOR (FOR EXHAUST CAMSHAFT)

NG

2.

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR EXHAUST CAMSHAFT) - ECM)

(a) Disconnect the VVT sensor (for exhaust camshaft) 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

C16-1 (EX+) - C56-131 (EV1+)

Always

Below 1 Ω

C16-2 (EX-) - C56-100 (VV1-)

Always

Below 1 Ω

C16-3 (VC2) - C56-99 (VCV1)

Always

Below 1 Ω

C17-1 (EX+) - C56-130 (EV2+)

Always

Below 1 Ω

C17-2 (EX-) - C56-97 (VV2-)

Always

Below 1 Ω

C17-3 (VC2) - C56-98 (VCV2)

Always

Below 1 Ω

C16-1 (EX+) or C56-131 (EV1+) - Body ground and other terminals

Always

10 kΩ or higher

C16-2 (EX-) or C56-100 (VV1-) - Body ground and other terminals

Always

10 kΩ or higher

C16-3 (VC2) or C56-99 (VCV1) - Body ground and other terminals

Always

10 kΩ or higher

C17-1 (EX+) or C56-130 (EV2+) - Body ground and other terminals

Always

10 kΩ or higher

C17-2 (EX-) or C56-97 (VV2-) - Body ground and other terminals

Always

10 kΩ or higher

C17-3 (VC2) or C56-98 (VCV2) - Body ground and other terminals

Always

10 kΩ or higher

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    Ignition Coil "A" Circuit Open (P035113-P035613)

    Catalyst System Efficiency Below Threshold Bank 1 (P042000,P043000)

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