NR Series ENGINE CONTROL SFI SYSTEM P03351F Crankshaft Position Sensor "A" Circuit Intermittent
DESCRIPTION
Refer to DTC P033511.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P03351F | Crankshaft Position Sensor "A" Circuit Intermittent | Diagnosis Condition:
·
All of the following conditions are met -
Engine speed is 1000 rpm or higher -
Starter signal is off -
3 seconds or more have elapsed since the starter signal switched from on to off Abnormal condition: ·
No crankshaft position sensor signal Malfunction Time: ·
0.05 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 |
·
Open or short in crankshaft position sensor circuit ·
Crankshaft position sensor ·
ECM |
Does not come on | DTC stored | SAE Code: P0339 |
*: When the engine is being stopped or started automatically by stop and start system control, the ECM does not monitor the crankshaft position sensor signal.
Reference: Inspection using an oscilloscope.
MONITOR DESCRIPTION
When the engine is running and no crankshaft position sensor signal is received for 0.05 seconds or more, the ECM determines that the crankshaft position sensor circuit is malfunctioning 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
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine.
Turn the GTS on.
Run the engine at an engine speed of 1000 rpm for 5 seconds or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the pending DTCs.
- HINT:
- ·
If a pending DTC is output, the system is malfunctioning.
·If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Proceed to the next screen and enter the DTC to be checked.
Check the DTC judgment result.
| GTS Display | Description |
|---|---|
| NORMAL | ·
DTC judgment completed ·
System normal |
| ABNORMAL | ·
DTC judgment completed ·
System abnormal |
| INCOMPLETE | ·
DTC judgment not completed ·
Perform driving pattern after confirming DTC enabling conditions |
- HINT:
- ·
If the judgment result is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system has a malfunction.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- HINT:
- ·
If no problem is found by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.
·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.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
5. Start the engine.
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
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTC P03351F is output* A DTC P03351F and P033511, P033515 or P033531 are output B
- HINT:
- ·
*: DTC P160300 (Engine Stall) may be output at the same time.
·If DTC P033511, P033515 or P033531 is output, perform troubleshooting for those DTCs first.
A
B
| *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 C13-1 (NE+) - Body ground Ignition switch ON 3.0 to 5.0 V
- HINT:
-
By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.
Turn the ignition switch off.
While jiggling the ECM connector, measure the resistance according to the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C13-2 (NE-) - Body ground Ignition switch off Below 1 Ω
- HINT:
-
By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.
- Result:
Proceed to OK NG
OK
NG
| *a | Clearance |
Visually check the crankshaft position sensor for damage.
Check the crankshaft position sensor installation condition.
- OK:
The crankshaft position sensor does not have any damage and is installed properly.
- 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 C13-2 (NE-) - C78-109 (NE-) Always Below 1 Ω C13-1 (NE+) - C78-76 (NE+) Always Below 1 Ω C13-3 (VC) or C78-110 (VCNE) - Body ground and other terminals Always 10 kΩ or higher C13-2 (NE-) or C78-109 (NE-) - Body ground and other terminals Always 10 kΩ or higher C13-1 (NE+) or C78-76 (NE+) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG