DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0337: Crankshaft Position Sensor "A" Circuit Low Input; DTC P0338: Crankshaft Position Sensor "A" Circuit High Input; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent [08/2015 - 08/2017]: Description
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The crankshaft position (CKP) sensor system consists of a crankshaft position sensor plate and Magnetic Resistance Element (MRE) type sensor. The crankshaft position sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed to the rear end of the crankshaft. The crankshaft position sensor outputs 34 rotation signals per crankshaft revolution. The ECM uses the G2 signal to distinguish between the cylinders, and uses the NE signal to detect the crankshaft position and engine speed.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0335 |
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| P0337 | Output voltage of CKP sensor 0.3 V or less for 4 seconds (1 trip detection logic) |
|
| P0338 | Output voltage of CKP sensor 4.7 V or more for 4 seconds (1 trip detection logic) |
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| P0339 | Under conditions (a), (b) and (c), no CKP sensor signal to ECM for 0.05 seconds or more (1 trip detection logic): (a) Engine speed 1000 RPM or more (b) Starter signal OFF (c) 3 seconds or more have elapsed since starter signal switched from ON to OFF |
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- Reference: Inspection using an oscilloscope.
Standard
Tester Connection Tool Setting Condition Specified Condition D56-110 (NE+) - D56-111 (NE-) 5 V/DIV., 20 msec./DIV. Cranking or idling The correct waveform is as shown D56-90 (G2) - D56-89 (G2-) 5 V/DIV., 20 msec./DIV. Cranking or idling The correct waveform is as shown HINT:
G2 stands for the camshaft position sensor signal, and NE stands for the crankshaft position sensor signal.