Toyota Tundra (2015 year). Manual — part 1968

Camshaft position signal

No signal

P1340 camshaft position / crankshaft position misalignment:

Camshaft position and crankshaft position phase

Misaligned

P1342 camshaft position sensor range check:

Camshaft position sensor voltage

Less than 0.3 V

P1343 camshaft position sensor range check:

Camshaft position sensor voltage

Higher than 4.7 V

COMPONENT OPERATING RANGE

Camshaft position sensor

signal

Camshaft position sensor voltage fluctuates when the camshaft

rotates

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.

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1340,P1342...

Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

10.

Input the DTC: P1340, P1342 or P1343.

11.

Check the DTC judgment result.

TESTER

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

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.

12.

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. Freeze frame data records the engine conditions when

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1340,P1342...

OK

OK

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.

INSPECT CAMSHAFT POSITION SENSOR (SENSOR POWER SOURCE)

(a) Disconnect the D6 camshaft position sensor connector.

(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

D6-3 (VC) - Body

ground

Ignition switch ON

4.5 to 5.0 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.

CHECK HARNESS AND CONNECTOR (ECM - CAMSHAFT POSITION SENSOR)

(a) Disconnect the D6 camshaft position 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

D6-1 (G2) - D74-90 (G2)

Always

Below 1 Ω

D6-2 (G-) - D74-89 (G2-)

Always

Below 1 Ω

D6-1 (G2) or D74-90 (G2) - Body ground

Always

10 kΩ or higher

D6-2 (G-) or D74-89 (G2-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1340,P1342...

OK

OK

NEXT

3.

INSPECT SENSOR INSTALLATION

(a) Check the camshaft position sensor installation.

OK:

The camshaft position sensor is installed properly.

NG

SECURELY REINSTALL SENSOR

4.

INSPECT CAMSHAFT TIMING PLATE (SIGNAL PLATE TOOTH)

Sensor plate teeth do not have any cracks or deformation.

NG

REPLACE CAMSHAFT TIMING PLATE

5.

REPLACE CAMSHAFT POSITION SENSOR

(a) Replace the camshaft position sensor

.

6.

CONFIRM WHETHER DTC OUTPUT RECURS

(a) Connect the Techstream to the DLC3.

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1340,P1342...