DESCRIPTION
The crankshaft position sensor system consists of a No. 1 crankshaft position sensor plate and Magneto 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 on the crankshaft. The crankshaft position sensor generates 34 signals per crankshaft revolution. The ECM uses the crankshaft position sensor signal (NE signal) to detect the crankshaft position and engine speed.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P033511 | Crankshaft Position Sensor "A" Circuit Short to Ground | The crankshaft position sensor output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0337 |
P033515 | Crankshaft Position Sensor "A" Circuit Short to Battery or Open | The crankshaft position sensor output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0338 |
HINT:
The correct waveform is as shown.
ECM Terminal Name | Between NE+ and NE- |
Tester Range | 2 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
MONITOR DESCRIPTION
If the output voltage transmitted by the crankshaft position sensor remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.
MONITOR STRATEGY
Related DTCs | P0337: Crankshaft position sensor range check (Low voltage) P0338: Crankshaft position sensor range check (High voltage) |
Required Sensors/Components (Main) | Crankshaft position sensor |
Required Sensors/Components (Related) | VVT sensor |
Frequency of Operation | Continuous |
Duration | 4 seconds |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs are not present | None |
All of the following conditions are met | - |
Battery voltage | 8 V or higher |
Engine switch | On (IG) |
Starter | Off |
TYPICAL MALFUNCTION THRESHOLDS
P0337: Range Check (Low Voltage) Crankshaft position sensor voltage | Less than 0.3 V |
Crankshaft position sensor voltage | Higher than 4.7 V |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | READ VALUE USING TECHSTREAM (ENGINE SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
Powertrain > Engine > Data List Tester Display |
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Engine Speed |
(e) Start the engine.
(f) Read the values displayed on the Techstream while the engine is running.
Standard:
Correct values are displayed.
HINT:
OK | CHECK FOR INTERMITTENT PROBLEMS |
|
2. | CHECK HARNESS AND CONNECTOR |
*a | Front view of wire harness connector (to Crankshaft Position Sensor) |
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
(a) Disconnect the crankshaft position sensor connector.
(b) Turn the engine switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
F1-3 (VC) - Body ground | Engine switch on (IG) | 4.5 to 5.5 V |
F1-1 (NE+) - Body ground | Engine switch on (IG) | 3.0 to 5.0 V |
(d) Turn the engine switch off and wait for at least 30 seconds.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
F1-3 (VC) - F1-1 (NE+) | Engine switch off | 1.425 to 1.575 kΩ |
F1-2 (NE-) - Body ground | Always | Below 1 Ω |
OK | REPLACE CRANK POSITION SENSOR |
|
3. | CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) |
(a) Disconnect the crankshaft position sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
F1-3 (VC) - C32-96 (VCNE) | Always | Below 1 Ω |
F1-2 (NE-) - C32-95 (NE-) | Always | Below 1 Ω |
F1-1 (NE+) - C32-128 (NE+) | Always | Below 1 Ω |
F1-3 (VC) or C32-96 (VCNE) - Body ground and other terminals | Always | 10 kΩ or higher |
F1-2 (NE-) or C32-95 (NE-) - Body ground and other terminals | Always | 10 kΩ or higher |
F1-1 (NE+) or C32-128 (NE+) - Body ground and other terminals | Always | 10 kΩ or higher |
OK | REPLACE ECM |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |