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DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)

DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)

DTC DETECTING CONDITION:


• Immediately at fault recognition

• GENERAL DESCRIPTION


TROUBLE SYMPTOM:


• Engine stalls.

• Failure of engine to start


Important

After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .


WIRING DIAGRAM:


CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.

Turn the ignition switch to OFF.

Disconnect the connector from camshaft position sensor.

Measure the resistance of harness between camshaft position sensor connector and engine ground.

Connector & terminal

(E15) No. 1 — Engine ground:

Is the resistance more than 100 kΩ?

Yes

• Repair the harness and connector.

•
Note

In this case, repair the following:

• Open circuit in harness between camshaft position sensor and ECM connector

• Poor contact in ECM connector

• Poor contact in coupling connector



No


CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.

Measure the resistance of harness between camshaft position sensor connector and engine ground.

Connector & terminal

(E15) No. 1 — Engine ground:

Is the resistance less than 10 Ω?

Yes


No

• Repair the ground short circuit in harness between camshaft position sensor and ECM connector.

•
Note

The harness between both connectors are shielded. Repair the ground short circuit in harness together with shield.



CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.

Measure the resistance of harness between camshaft position sensor connector and engine ground.

Connector & terminal

(E15) No. 2 — Engine ground:

Is the resistance less than 5 Ω?

Yes


No

• Repair the harness and connector.

•
Note

In this case, repair the following:

• Open circuit in harness between camshaft position sensor and ECM connector

• Poor contact in ECM connector

• Poor contact in coupling connector



CHECK CONDITION OF CAMSHAFT POSITION SENSOR.

Is the camshaft position sensor installation bolt tightened securely?

Yes


No

Tighten the camshaft position sensor installation bolt securely.


CHECK CAMSHAFT POSITION SENSOR.

Remove the camshaft position sensor.

Measure the resistance between connector terminals of camshaft position sensor.

Terminals

No. 1 — No. 2:

Is the resistance 1 — 4 kΩ?

Yes

Repair the poor contact in camshaft position sensor connector.


No

Replace the camshaft position sensor.