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DTC P0337 58X Crank Position Sensor No Signal: Troubleshooting

TROUBLESHOOTING CHART

Step Action Value(s) Yes No
1 Perform an On-Board Diagnostic (OBD II) System Check.
Was the check performed?		 - Go to Step 2 Go to "ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK :"
2
  1. Turn the ignition OFF.
  2. Install a scan tool to the Data Link Connector (DLC).
  3. Start the engine.
  4. Operate the vehicle within the Freeze Frame conditions and Conditions for Setting the DTC as noted.

Is Diagnostic Trouble Code (DTC) P0337 set?		 - Go to Step 3 Go to Step 10
3
  1. Turn the ignition OFF.
  2. Disconnect the Crankshaft Position (CKP) sensor connector.
  3. Turn the ignition ON.
  4. Using a voltmeter, check the voltage between the CKP sensor wiring harness connector (Engine Control Module [ECM] side) terminal 1 and ground.

Does the voltage within the value specified?		 1.4 V Go to Step 4 Go to Step 5
4 Using a voltmeter, check the voltage between the CKP sensor wiring harness connector (ECM side) terminal 2 and ground.
Does the voltage within the value specified?		 1.4 V Go to Step 6 Go to Step 5
5
  1. Turn the ignition OFF.
  2. Disconnect the ECM connector.
  3. Turn the ignition ON.
  4. Using a voltmeter, check the out put voltage of the ECM terminal M21 and M5.

Does the voltage within the value specified?		 11-14 V Go to Step 8 Go to Step 9
6
  1. Reconnect the CKP sensor.
  2. Using a voltmeter, back probe the ECM connector terminal M21 and M5.
  3. Observe the voltage while cranking the engine.

Does the voltage fluctuate between the specified value?		 1.3-1.6 V Go to "DIAGNOSTIC AIDS :" Go to Step 7
7
  1. Turn the ignition OFF.
  2. Replace the CKP sensor.

Is the repair complete?		 - Go to Step 10 -
8 Check the CKP sensor high and low circuits for an open, short to ground or voltage and repair as needed.
Is the repair complete?		 - Go to Step 10 -
9
  1. Turn the ignition OFF.
  2. Replace the ECM.

Is the repair complete?		 - Go to Step 10 -
10
  1. Using the scan tool, clear the DTCs.
  2. Start the engine and idle at normal operating temperature.
  3. Operate the vehicle within the conditions for setting this DTC as supported in the text.

Does the scan tool indicate that this diagnostic ran and passed?		 - Go to Step 11 Go to Step 2
11 Check if any additional DTCs are set.
Are any DTCs displayed that have not been diagnosed?		 - Go to Applicable DTC table System OK
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