Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GVGH
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 04/2020]
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P034031; Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal; 2020 MY Corolla Corolla HV [01/2019 - 04/2020]

DTC

P034031

Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal

DESCRIPTION

Refer to DTC P034011.

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P034011; Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground+

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P034031

Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal

Diagnosis condition:

  • The engine is running (600 rpm or more)

Abnormal condition:

  • No camshaft position sensor signal.

Malfunction time:

  • 5 seconds or more

Trip logic:

  • 1 trip detection logic

Detection conditions:

  • Continuous

Sensors/components used for detection (Main):

  • Camshaft position sensor

Sensors/components used for detection (Related):

  • Crankshaft position sensor
  • Open or short in camshaft position sensor circuit
  • Camshaft position sensor
  • ECM

Comes on

DTC stored
  • SAE Code: P0340
  • DTC for Mexico Models: Applies
  • Reference: Inspection using an oscilloscope.

    Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P034011; Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground+

MONITOR DESCRIPTION

When the engine is running and no camshaft position sensor signal is received for 5 seconds or more, the ECM determines that the camshaft position sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs

P0340: Camshaft position sensor verify pulse input

Required Sensors/Components (Main)

Camshaft position sensor

Required Sensors/Components (Related)

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

5 seconds

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

All of the following conditions are met

-

Auxiliary battery voltage

8 V or higher

Power switch

On (IG)

Camshaft position sensor voltage

0.3 to 4.7 V

Engine speed

600 rpm or higher

Hybrid control module judge

Engine running

Lost communication with hybrid control module (U0293)

Not detected

TYPICAL MALFUNCTION THRESHOLDS

Camshaft position sensor signal

No signal

CONFIRMATION DRIVING PATTERN

Refer to DTC P03402A.

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P03402A; Camshaft Position Sensor "A" Bank 1 or Single Sensor Signal Stuck in Range+

WIRING DIAGRAM

Refer to DTC P034011.

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P034011; Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground+

CAUTION / NOTICE / HINT

NOTICE:

  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): VEHICLE CONTROL HISTORY

    (Select Powertrain in Health Check and then check the time stamp data.)

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  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): VEHICLE CONTROL HISTORY

HINT:

  • If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.
  • 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 DTC OUTPUT (DTC P034031 AND P034011 OR P034015)

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTC P034031 is output

A

DTC P034031 and P034011 or P034015 are output

B

HINT:

If DTC P034011 or P034015 is output, perform troubleshooting for it first.

B

GO TO DTC CHART

A

2.

CHECK TERMINAL VOLTAGE AND INTERNAL RESISTANCE (CAMSHAFT POSITION SENSOR AND ECM)

*a

Front view of wire harness connector

(to Camshaft Position Sensor)

HINT:

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

(a) Disconnect the camshaft position sensor connector.

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

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

C10-3 (VC) - Body ground

Power switch on (IG)

4.5 to 5.5 V

C10-1 (VVI+) - Body ground

Power switch on (IG)

3.0 to 5.0 V

(d) Turn the power switch off.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C10-2 (VVI-) - Body ground

Power switch off

Below 1 Ω
NG

GO TO STEP 5

OK

3.

INSPECT CAMSHAFT POSITION SENSOR

(a) Remove the camshaft position sensor.

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(b) Confirm that there is no oil on the connecting parts of the camshaft position sensor connector.

OK:

There is no oil on the connecting parts of the camshaft position sensor connector.

NG

REPLACE CAMSHAFT POSITION SENSOR

OK

4.

INSPECT CAMSHAFT POSITION SENSOR

*a

Component without harness connected

(Camshaft Position Sensor)

(a) Disconnect the camshaft position sensor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (VC) - 1 (VVI+)

Always

10 kΩ or higher

3 (VC) - 2 (VVI-)

Always

10 kΩ or higher

1 (VVI+) - 2 (VVI-)

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPLACE CAMSHAFT POSITION SENSOR

5.

CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)

(a) Disconnect the camshaft position sensor 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

C10-3 (VC) - C77-116 (VCV1)

Always

Below 1 Ω

C10-1 (VVI+) - C77-82 (VV1+)

Always

Below 1 Ω

C10-2 (VVI-) - C77-115 (VV1-)

Always

Below 1 Ω

C10-3 (VC) or C77-116 (VCV1) - Body ground and other terminals

Always

10 kΩ or higher

C10-1 (VVI+) or C77-82 (VV1+) - Body ground and other terminals

Always

10 kΩ or higher

C10-2 (VVI-) or C77-115 (VV1-) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR