DIAGNOSTIC TROUBLE CODE (DTC) - P0342 CAMSHAFT POSITION SENSOR NO SIGNAL

 

Knowing The Circuit

  • In order to identify Camshaft Position and to establish a connection the Camshaft Position Sensor is needed.
  • This stance is needed for the ECM to note the cylinder ready to be fueled by the injector.
  •  It is mandatory for the camshaft polarity sensor signal to change only once for every crankshaft position.

 

 

      When will DTC set?

What happens when DTC sets?

    When will DTC clear?

1) When the engine is running

1) The Malfunction Indicator Lamp (MIL) will illuminate

1) The MIL will cease after four consecutive ignition cycles in which the diagnostic runs faultlessly.

 

2) When there is no traction of CMP signal between teeth 18 and 82 but a change in polarity exists

2) The ECM will record operating conditions at the time the diagnostic fails

2) A history DTC will clear after 40 consecutive warm-up cycles without a fault

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3) This information will be stored in the Freeze Frame and Failure Records buffers

3) DTC(s) can be cleared by using the scan tool.

 

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4) A history DTC is stored.

 

 

 

 

DIAGNOSTICS TOOLS

 

  • Correct any unusual engine noise before using the diagnostic table.
  • Any circuitry that is suspected as causing engine noise complaint should be thoroughly checked for the following conditions :

a)       Backed-out terminals.

b)       Broken locks.

c)       Incorrect mating

d)       Incorrectly formed   or   Damaged Terminals

e)       Poor terminal-to-wire connections

f)         Visible damage to the wiring harness.

 

                                     TABULATION OF THE TASKS TO BE DONE

                                   DTC P0342 - Camshaft Position Sensor No Signal

Step

Task

R    E   S

U    L    T

1

Undertake the EOBD System Check.

 

Test Over?

 

IF  YES       THEN

 

 

Follow Step 2

IF  NO       THEN

 

Go to "On-Board Diagnostic System Check"

2

  1. Take the ignition switch to LOCK mode.
  2. Dissociate the CMP sensor connector.
  3. See whether there exists any faulty connector or termin1als.

Any problem found?

IF  YES       THEN

Follow Step 4

IF  NO      THEN

Follow Step 3

3

  1. Now turn the ignition switch ON.
  2. Detach the ECM connector.
  3. Examine the ECM pins and connector for bent or damaged terminals.
  4. Probe the wire between the CMP sensor terminal 1 and ECM connector 82 for an open or short to ground or short to battery voltage while moving related connectors and wiring harness.
  5. Inspect the wires between the CMP sensor terminal 2 and ECM connector 18 for an open while moving related connectors and wiring harness.

Any problem found?

IF  YES       THEN

Follow Step 4

IF  NO      THEN

Follow Step 5

4

  1. Turn the ignition switch to LOCK.
  2.  If needed then either repair or replace the wire or the connector.
  3. If there be any, then clear existing DTCs from the ECM.
  4. Run the vehicle
  5. Carry out the diagnostic system check.

Task completed?

IF  YES       THEN

System OK

-

5

  1. Again turn the ignition switch to LOCK mode.
  2. Change the CMP sensor.
  3. If there be any, then clear existing DTCs from the ECM.
  4. Run the vehicle.
  5. Carry out the diagnostic system check.

Do you see DTC P0342 resetting?

IF  YES       THEN

System OK

IF  NO      THEN

Follow Step 6

6

  1. Substite the ECM.
  2. Run the vehicle.
  3. Carry out Diagnostic system check.

Work Done?

IF  YES       THEN

Follow Step 7

-

7

  1. Unset the DTCs, taking a scan tool.
  2. Start the engine and idle at normal operating temperature.
  3. Run the vehicle within the parameters needed for setting this DTC as mentioned in the supporting text.

Does the scan tool indicate that this diagnostic has been run and passed?

IF  YES       THEN

Follow Step 8

-

8

Check if any additional DTCs are set.

 

Do you see any undiagnosed DTC still being displayed?

IF  YES       THEN

Go to Applicable DTC table

IF  NO      THEN

The System of your car is OK