DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor plate and Magneto-Resistive 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 | 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 | SAE: 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 | SAE: 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
Required Sensors/Components (Main) | Crankshaft position sensor |
Required Sensors/Components (Related) | Camshaft position sensor |
Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
HINT:
GTS Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
|
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | READ VALUE USING GTS (ENGINE SPEED) |
(a) Enter the following menus.
Powertrain > Engine > Data List Tester Display |
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Engine Speed |
(b) Start the engine.
(c) Read the values displayed on the GTS while the engine is running.
Standard:
Correct values are displayed.
HINT:
OK |
![]() | CHECK FOR INTERMITTENT PROBLEMS |
|
2. | CHECK HARNESS AND CONNECTOR |
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 ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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(d) Turn the ignition 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(VCNE) - f1-1(NE+) | Ignition switch off | 1.425 to 1.575 kΩ |
f1-2(NE-) - Body ground | Always | Below 1 Ω |
OK |
![]() | REPLACE CRANKSHAFT POSITION SENSOR |
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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(VCNE) - D104-116(VCNE) | Always | Below 1 Ω |
f1-1(NE+) - D104-92(NE+) | Always | Below 1 Ω |
f1-2(NE-) - D104-115(NE-) | Always | Below 1 Ω |
f1-3(VCNE) or D104-116(VCNE) - Body ground and other terminals | Always | 10 kΩ or higher |
f1-1(NE+) or D104-92(NE+) - Body ground and other terminals | Always | 10 kΩ or higher |
f1-2(NE-) or D104-115(NE-) - Body ground and other terminals | Always | 10 kΩ or higher |
OK |
![]() | REPLACE ECM |
NG |
![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.