Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001NMP6 |
Model Year Start: 2021 |
Model: Corolla |
Prod Date Range: [04/2020 - 09/2022] |
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P03352A,P033531; Crankshaft Position Sensor "A" Signal Stuck in Range; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] |
DTC
|
P03352A
|
Crankshaft Position Sensor "A" Signal Stuck in Range
|
DTC
|
P033531
|
Crankshaft Position Sensor "A" No Signal
|
DESCRIPTION
The crankshaft position sensor system consists of a No. 1 crankshaft position sensor plate and a pickup coil. The No. 1 crankshaft position sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed to the crankshaft.
The crankshaft position sensor generates 34 signals per crankshaft revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the fuel injection and ignition timing are controlled.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Memory
|
Note
|
P03352A
|
Crankshaft Position Sensor "A" Signal Stuck in Range
|
No crankshaft position sensor signal is received by the ECM while the engine is running (1 trip detection logic).
|
-
Open or short in crankshaft position sensor circuit
-
Crankshaft position sensor
-
ECM
|
Comes on
|
DTC stored
|
-
SAE Code: P0335
-
DTC for Mexico Models: Applies
|
P033531
|
Crankshaft Position Sensor "A" No Signal
|
The engine stalls and the engine speed signal value decreases rapidly (1 trip detection logic).
|
-
Open or short in crankshaft position sensor circuit
-
Crankshaft position sensor
-
ECM
|
Comes on
|
DTC stored
|
-
SAE Code: P0335
-
DTC for Mexico Models: Applies
|
-
Reference: Inspection using an oscilloscope
HINT:
-
The correct waveform is as shown.
-
Grounding failure of the shielded wire may cause noise in the waveform.
ECM Terminal Name
|
Between NE+ and NE-
|
Tester Range
|
5 V/DIV., 20 ms./DIV.
|
Condition
|
Idling with warm engine
|
MONITOR DESCRIPTION
A DTC will be stored if any of the following occurs:
-
The crankshaft position sensor signal (NE signal) is not received by the ECM when the engine is running.
-
The engine stalls and the engine speed signal value decreases rapidly (under normal conditions the engine speed will decrease gradually).
MONITOR STRATEGY
Related DTCs
|
P0335: Crankshaft position sensor verify pulse input
|
Required Sensors/Components (Main)
|
Crankshaft position sensor
|
Required Sensors/Components (Related)
|
Camshaft position sensor
|
Frequency of Operation
|
Continuous
|
Duration
|
-: Case 1
1.85 seconds: Case 2
|
MIL Operation
|
Immediate
|
Sequence of Operation
|
None
|
TYPICAL ENABLING CONDITIONS
All
Monitor runs whenever the following DTCs are not stored
|
None
|
Both of the following conditions are met
|
-
|
Lost communication with hybrid vehicle control ECU (U0293)
|
Not detected
|
Hybrid control module judge
|
Engine running
|
Case 1
All of the following conditions are met
|
-
|
Engine speed
|
600 rpm or higher
|
Starter
|
Off
|
Time after starter on to off
|
3 seconds or more
|
Case 2
Both of the following conditions are met
|
-
|
Power switch
|
On (IG)
|
Time after power switch off to on (IG)
|
0.5 seconds or more
|
TYPICAL MALFUNCTION THRESHOLDS
Crankshaft position sensor signal
|
No signal
|
CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
-
Connect the Techstream to the DLC3.
-
Turn the power switch on (IG).
-
Turn the Techstream on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
-
Turn the power switch off and wait for at least 30 seconds.
-
Turn the power switch on (IG).
-
Turn the Techstream on.
-
Put the engine in Inspection Mode (Maintenance Mode).
Click here
-
Start the engine.
-
Idle the engine for 20 seconds or more [A].
-
Enter the following menus: Powertrain / Engine / Trouble Codes [B].
-
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.
-
Input the DTC: P03352A or P033531.
-
Check the DTC judgment result.
Techstream 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
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
- for Nickel Metal Hydride Battery: Click here
- for Lithium-ion Battery: Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
-
If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
- for Nickel Metal Hydride Battery: Click here
- for Lithium-ion Battery: Click here
HINT:
-
After performing the inspection procedure for the crankshaft position sensor, if DTC P03352A, P033531 and/or P033562 is output again, check the following items related to the camshaft position sensor.
-
Installation condition of the camshaft position sensor.
-
Installation condition of the camshaft.
-
Connection of the camshaft position sensor connector.
-
If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
-
The engine speed can be checked by using the Techstream. To perform the check, perform the following procedure:
-
Connect the Techstream to the DLC3.
-
Turn the power switch on (IG).
-
Turn the Techstream on.
-
Put the engine in Inspection Mode (Maintenance Mode).
Click here
-
Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
-
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 Techstream. 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
1.
|
READ VALUE USING TECHSTREAM (ENGINE SPEED)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
Tester Display
|
Inspection Mode
|
(e) Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
Powertrain > Engine > Data List
Tester Display
|
Engine Speed
|
(f) Start the engine.
(g) Read the values displayed on the Techstream while the engine is running.
Standard:
Correct values are displayed.
HINT:
-
To check the engine speed change, display the graph on the Techstream.
-
If the engine does not start, check the engine speed while cranking.
-
If the engine speed indicated on the Techstream remains zero (0), there may be an open or short in the crankshaft position sensor circuit.
NG
|
|
|
2.
|
INSPECT CRANKSHAFT POSITION SENSOR
|
(a) Inspect the crankshaft position sensor.
Click here
OK
|
|
|
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
|
C12-1 - C77-114 (NE+)
|
Always
|
Below 1 Ω
|
C12-2 - C77-113 (NE-)
|
Always
|
Below 1 Ω
|
C12-1 or C77-114 (NE+) - Body ground and other terminals
|
Always
|
10 kΩ or higher
|
C12-2 or C77-113 (NE-) - Body ground and other terminals
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|