P0315 code p0315

Question edited for clarity.
Question moved to model category.

Did you clear the codes?
Have you disconnected the battery just before it wouldn't start?

P0353 OBD-II Trouble Code: Ignition Coil C Primary ...

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P0353 means a malfunction has been found specifically in ignition coil C. Problems may include broken connector locks and loose connection at coil.
Missing: G6 ‎' Must include: G6

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  P0355 OBD-II Trouble Code: Ignition Coil B Primary ...

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  Trouble code P0355 means the PCM has identified an electrical malfunction in the primary or secondary circuit of ignition coil B.

P0315 Code: Crankshaft Position System Variation Not Learned

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Sep 15, 2022 - Diagnostic trouble code (DTC) P0315 stands for "Crankshaft Position System Variation Not Learned." The crankshaft position sensor measures the ...

You're probably seeing a "history" code--code that has set but not currently active. Or it could be a "pending" code...code that will be active if the engine keeps doing what is was doing.

DTC P0315 Crankshaft Position (CKP) System Variation Not Learned
The crankshaft position (CKP) system variation learn feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft, and the crankshaft position sensors. The calculated error allows the powertrain control module (PCM) to accurately compensate for reference period variations. This enhances the ability of the PCM to detect misfire events over a wider range of engine speed and load. The PCM stores the crankshaft position system variation values after a learn procedure has been performed. If the actual crankshaft position variation is not within the crankshaft position system variation compensating values stored in the PCM, DTC P0300 may set. If the PCM detects the CKP system variation values are not stored in the PCM memory, DTC P0315 sets.
you need a factory scan tool to do the variation relearn .
Install a scan tool.
Monitor the engine control module (ECM) for DTCs with a scan tool. If other DTCs are set, except DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set.
With a scan tool, select the CKP system variation learn procedure and perform the following:
3.1. Observe the fuel cut-off for the applicable engine.
3.2. Block the drive wheels.
3.3. Set the parking brake.
3.4. Place the vehicle's transmission in Park or Neutral.
3.5. Turn the air conditioning (A/C) OFF.
3.6. Cycle the ignition from OFF to ON.
3.7. Apply and hold the brake pedal for the duration of the procedure.
3.8. Start and idle the engine.
3.9. Accelerate to wide open throttle (WOT). The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1. Release the throttle immediately if the value is exceeded.

Important: While the learn procedure is in progress, release the throttle immediately when the engine starts to decelerate. The engine control is returned to the operator and the engine responds to throttle position after the learn procedure is complete.
3.10. Release the throttle when fuel cut-off occurs.
The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC P0315 ran and passed, the CKP variation learn procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC P0315 . If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set.
Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully.

Did you replace the crank sensor ?

Hi Simon,here's a link to your code. Toyota P0315 OBD DLC Error Code Crankshaft Position System Variation Not...

P0315 - Crankshaft Position System Variation Not Learned
P0335 - Magnetic Crankshaft Position Sensor Electrical Error China OBD2 car diagnostic tools wholesale on CareUCar

P0315 is a code that indicates and error from the crankshaft position sensor. Typically it is the sensor itself and not an issue with the crankshaft. The sensor itself runs from $30 to $40, but replacement may not be a DIY job unless you're comfortable under a car and removing pulleys from the front of the engine.

This code P0315 has nothing to do with O2 sensor .
P0315 Crankshaft Position System Variation Not Learnedvar ezzns2 var...

I took it in to a different mechanic and am told that the car will not "learn" the cps. It will clear the CEL but as soon as the key is put in the ignition it comes back on He suggested putting in the original crank sensor but that one is cracked so do I need to get an ac/delco or gm sensor instead of what I got from autozone or how do I get it to recognize the sensor we put in?

We did check the fuses and that is not the problem.

P0315 - Crankshaft Position System Variation Not Learned

Possible causes- Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Damaged crankshaft pulse wheel teeth. Tech notes Visual inspection of the Crankshaft Position (CKP) sensor and crankshaft pulse wheel teeth for damage. If crankshaft teethes are OK, replaced the Crankshaft Position sensor

Well the code p0300 is a mis fire code the 315 is I believe a cam timing code which can cause the 300 replace the cam trimming actuator, it should fix ur problem.