STOP AND START STOP AND START SYSTEM P033562 Crankshaft Position Sensor "A" Signal Compare Failure
DESCRIPTION
The crankshaft position sensor sends an engine speed signal (NE signal) to the ECM. The engine speed signal is then sent directly from the NEO terminal of the ECM to the engine stop and start ECU. Additionally, the ECM sends the engine speed to the engine stop and start ECU via CAN communication. The engine stop and start ECU compares the NE signal and engine speed received via CAN communication to check for errors in the NE signal.
If the NE signal is abnormal, the engine stop and start ECU will blink the stop and start cancel indicator and stores DTC P033562.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Note |
|---|---|---|---|---|---|
| P033562 | Crankshaft Position Sensor "A" Signal Compare Failure | All of the following conditions are met for 10 seconds (1 trip detection logic):
·
Normal communication between the ECM and the engine stop and start ECU. ·
Engine speed (NE signal) is below 6000 rpm. ·
Difference between the NE signal that is sent directly from ECM and the engine speed that is sent via CAN is 300 rpm or higher. |
·
Wire harness or connector ·
Crankshaft position sensor ·
ECM ·
Engine stop and start ECU |
Blinks | SAE Code: P0335 |
CONFIRMATION DRIVING PATTERN
CONFIRMATION AFTER TROUBLESHOOTING
- HINT:
- ·
If the cable is disconnected from the auxiliary battery terminal, stop and start control is prohibited until refresh charge is completed.
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item Status of Battery Charge Control changes Bes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the auxiliary battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)
·If the GTS is not available and the Data List item Status of Battery Charge Control cannot be checked, charge the auxiliary battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.
If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.
·After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.
·Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.
Clear the DTCs.
- Powertrain > Stop and Start > Clear DTCs
- 50002 392
Start the engine and wait for at least 15 seconds.
Check that DTCs are not output.
- Powertrain > Stop and Start > Trouble Codes
- 50001 392
STOP AND START SYSTEM OPERATION CHECK
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.
·After replacing the engine stop and start ECU, perform learning of the external backup boost converter (eco run vehicle converter assembly).
·After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.
- HINT:
- ·
Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.
·For wire harness and connector inspection procedures and precautions, refer to "Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING202201,999999,_V1,_107171,_0496334,RM100000001YK2G,"
·DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.
PROCEDURE
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to SFI system DTCs are not output A SFI system crankshaft position sensor circuit DTC is output B
A
B
Start the engine.
- Powertrain > Stop and Start > Data List
-
Tester Display Engine Speed - 50003 392 502
According to the display on the GTS, read the Data List.
- OK:
Engine speed signal is input (the speeds displayed on the tachometer and the GTS are almost the same).
- Result:
Proceed to OK NG
OK
NG
Disconnect the A169 engine stop and start ECU connector.
Disconnect the A182 ECM connector.
Disconnect the I223 certification ECU (smart key ECU assembly) connector.*1
*1: w/ Smart Entry and Start System
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A169-10 (NE) - A182-66 (NEO) Always Below 1 Ω A169-10 (NE) - Body ground and other terminals Always 10 kΩ or higher A182-66 (NEO) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Disconnect the A169 engine stop and start ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A169-6 (DGND) - Body ground Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Start the engine and warm it up.
Connect an oscilloscope to the NE and DGND terminals of the engine stop and start ECU connector.
| *a | Component with harness connected
(Engine Stop and Start ECU) |
- | - |
Check the signal waveform according to the condition(s) in the table below.
| Item | Condition |
|---|---|
| Tester Connection | A169-10 (NE) - A169-6 (DGND) |
| Tool Setting | 5 V/DIV., 2 ms./DIV. |
| Condition | Idling after engine warmed up |
- Result:
Result Proceed to Pulse generation
(See waveform)A Stuck at 0 to 1.5 V B Stuck at 8 to 14 V C
A
B
C
| *a | Component with harness connected
(Engine Stop and Start ECU) |
- | - |
Disconnect the A182 ECM 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 A169-10 (NE) - A169-6 (DGND) Ignition switch ON 8 to 14 V
- HINT:
-
DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.
- Result:
Proceed to OK NG
OK
NG