DIAGNOSTIC TROUBLE CODE (DTC) - P0336 58X CRANKSHAFT POSITION SENSOR NO PLAUSIBLE SIGNAL

 

Knowing The Circuit:

  • The device, crankshaft position (CKP) sensor initiates the 58X reference signal.
  • As the name suggests, 58 crankshaft pulses will be generated after the completion of every crankshaft revolution.
  • This (58X) reference signal is considered by the engine control module (ECM) for calculating engine rpm and CKP.
  •  The ECM keeps track of the number of pulses on the 58X reference circuit and compares them with the number of camshaft position (CKP) signal pulses obtained.
  • On receiving any incoherent number of pulses by the ECM, DTC P0336 will be set at once.

 

 

      When will DTC set?

What happens when DTC sets?

    When will DTC clear?

1) The DTC is preserved in "key-on" status

1) The Malfunction Indicator Lamp (MIL) starts to glow.

1) The MIL will turn off after four successive ignition cycles in which the diagnostic runs correctly.

2) If identified number of teeth varies by 3 or more

2) The ECM commences noting operating conditions at the time the diagnostic fails

2) A history DTC will clear after 40 consecutive warm-up cycles

-

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

3) DTC(s) can be cleared with the help of the scan tool

-

4) A history DTC is stored

4) Disconnecting the ECM battery feed for more than 10 seconds

 

 

DIAGNOSTICS TOOLS

 

An intermittent may be caused by the following:

1)       a poor connection 2) rubbed-through wire insulation or a wire broken inside the insulation.

 

Under such circumstances check for:

a)       Poor connection - examine the ECM harness and connectors for improper mating, broken locks, improperly formed or damaged terminals, and poor terminal-to-wire connection.

b)       Damaged harness – examine the wiring harness for damage.

c)        If you find the harness functioning properly then  disconnect the ECM

d)       Now turn the ignition ON and detect a voltmeter attached to the 58X reference circuit at the ECM harness connector as you move the connectors and the wiring harness related to the ECM.

e)       A change in voltage will indicate the location of the fault.

f)         It is better to review the failure records vehicle mileage since this diagnostic test failed will indicate the frequency for the condition boosting the DTC to start.

g)       This test will help diagnosing the condition.

 

TABULATION OF MEASURES TO BE TAKEN

DTC P0336 - 58X Crankshaft Position Sensor No Plausible 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

Try starting the engine.

 

Does the engine start successfully?

 

 

IF  YES       THEN

Follow Step 3

 

IF  NO       THEN

Refer to "Engine Cranks But Will Not Run"

3

  1. Review and record Failure Records information.
  2. Clear DTC P0336 that has been set.
  3. Start the engine and idle for 1 minute.
  4. Note the DTCs.

Has DTC P0336 been set?

IF  YES       THEN

 

Follow Step 4

IF  NO       THEN

 

Go to "DIAGNOSTICS  TOOLS"

4

  1. Detach the engine control module (ECM) and the crankshaft position (CKP) sensor.
  2. Search if there’s any open or a low voltage in the CKP sensor connector and the ECM harness connector.

Any Error located?

 

IF  YES       THEN

 

 

Follow Step 5

 

IF  NO      THEN

 

Follow Step 6

5

Correct the open or low voltage in the 58X reference circuit found between the CKP sensor connector and the ECM harness connector.

 

Work Over?

 

 

 

 

IF  YES       THEN

 

Follow Step 11

-

6

  1. Reconnect the ECM and CKP sensor.
  2. Connect a digital voltmeter (DVM) to measure voltage on the 58X reference circuit terminal 54 at the ECM connector.
  3. Record the voltage while cranking the engine.

Note : the value at this point is 2.5V

Do you see the voltage somewhat close to the specified value?

 

 

 

 

 

IF  YES       THEN

 

 

Follow Step 9

 

 

 

 

 

IF  NO      THEN

 

 

 

Follow Step

7

7

After checking the connection at the CKP sensor change the terminals if necessary.

 

Is terminal replacement necessary?

IF  YES       THEN

Follow Step 11

IF  NO      THEN

Follow Step 8

8

Change the CKP sensor.

 

Change Done?

IF  YES       THEN

Follow Step 11

-

9

Inspect the connections at the ECM and substitute the terminals if necessary.

 

 Is terminal replacement necessary?

IF  YES       THEN

Follow Step 11

IF  NO       THEN

Follow Step 10

10

Change the ECM.

Change Done?

IF  YES       THEN

Follow Step 11

-

11

  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 12

IF  NO       THEN

Follow Step 2

12

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 the vehicle is fine.