NR Series ENGINE CONTROL SFI SYSTEM P033515 Crankshaft Position Sensor "A" Circuit Short to Battery or Open
DESCRIPTION
Refer to DTC P033511.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P033515 | Crankshaft Position Sensor "A" Circuit Short to Battery or Open | Diagnosis Condition:
·
Ignition switch ON Abnormal condition: ·
The crankshaft position sensor output voltage is higher than 4.7 V. Malfunction Time: ·
4 seconds or more Trip logic: ·
1 trip detection logic Detection Conditions: ·
Continuous Sensors/components used for detection (Main): ·
Crankshaft position sensor Sensors/components used for detection (Related): ·
Camshaft position sensor (for intake camshaft) |
·
Open or short in crankshaft position sensor circuit ·
Crankshaft position sensor ·
ECM |
Comes on | DTC stored | SAE Code: P0338 |
Reference: Inspection using an oscilloscope.
MONITOR DESCRIPTION
When the ignition switch is turned to ON and the output voltage of the crankshaft position sensor is higher than 4.7 V for 4 seconds or more, the ECM determines that the crankshaft position sensor circuit is malfunctioning and 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
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- HINT:
- ·
The engine speed can be checked by using the GTS. To perform the check, follow the procedures below:
1. Connect the GTS to the DLC3.
5. Start the engine.
3. Turn the GTS on.
4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
·Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
| *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.
Disconnect the crankshaft position sensor connector.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition C13-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V
- Result:
Result Proceed to Higher than 5.5 V A 4.5 to 5.5 V B Below 4.5 V C
A
B
C
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-3 (VC) or C78-110 (VCNE) - Other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Crankshaft Position Sensor) |
Disconnect the crankshaft position sensor connector.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition C13-1 (NE+) - Body ground Ignition switch ON 3.0 to 5.0 V
- Result:
Result Proceed to Higher than 5.0 V A 3.0 to 5.0 V B Below 3.0 V C
A
B
C
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-1 (NE+) or C78-76 (NE+) - Other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Disconnect the crankshaft position sensor connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-2 (NE-) - Body ground Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Turn the ignition switch off.
Disconnect the crankshaft position sensor connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-3 (VC) - C13-1 (NE+) Ignition switch off 1.425 to 1.575 kΩ
- HINT:
-
As voltage is still supplied to the ECM after the ignition switch is turned off, this check cannot be performed correctly during the shut-down process.
- Result:
Proceed to OK NG
OK
NG
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-3 (VC) - C13-1 (NE+) or C78-110 (VCNE) - C78-76 (NE+) Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-2 (NE-) - C78-109 (NE-) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-1 (NE+) - C78-76 (NE+) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-3 (VC) - C78-110 (VCNE) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG