SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P033511, P033515, P03351F, P03352A, P033531

DTC Code	DTC Name
P033511	Crankshaft Position Sensor "A" Circuit Short to Ground
P033515	Crankshaft Position Sensor "A" Circuit Short to Battery or Open
P03351F	Crankshaft Position Sensor "A" Circuit Intermittent
P03352A	Crankshaft Position Sensor "A" Signal Stuck in Range
P033531	Crankshaft Position Sensor "A" No Signal

DESCRIPTION

The crankshaft position sensor system consists of a crankshaft position sensor plate and Magneto Resistance 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 NE signal to detect the crankshaft position and engine speed.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	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).	Open or short in crankshaft position sensor circuit Crankshaft position sensor ECM	Comes on	DTC stored	SAE Code: 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).	Open or short in crankshaft position sensor circuit Crankshaft position sensor ECM	Comes on	DTC stored	SAE Code: P0338
P03351F	Crankshaft Position Sensor "A" Circuit Intermittent	Under conditions (a), (b) and (c), no crankshaft position sensor signal to ECM for 0.05 seconds or more (1 trip detection logic): (a) Engine speed 1000 rpm or higher. (b) Starter signal off. (c) 3 seconds or more have elapsed since the starter signal switched from on to off. *	Open or short in crankshaft position sensor circuit Crankshaft position sensor Crankshaft (crankshaft position sensor plate) ECM	Does not come on	DTC stored	SAE Code: P0339
P03352A	Crankshaft Position Sensor "A" Signal Stuck in Range	All of the following conditions are met (1 trip detection logic). Camshaft position sensor signal input for 5 times or more. No crankshaft position sensor signal to the ECM while cranking. *	Open or short in crankshaft position sensor circuit Crankshaft position sensor Crankshaft (crankshaft position sensor plate) ECM	Comes on	DTC stored	SAE Code: P0335
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 Crankshaft (crankshaft position sensor plate) ECM	Comes on	DTC stored	SAE Code: P0335

*: 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.


*a	2 V/DIV.
*b	20 ms./DIV.

Reference: Inspection using an oscilloscope.

Tech Tips

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

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 being cranked.
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).
The crankshaft position sensor output voltage is above or below the threshold.

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 engine switch on (IG) and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) and turn the GTS on.
Start the engine.
Idle the engine for 20 seconds or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the pending DTCs.
Tech Tips
- 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: P033511, P033515, P03351F, P03352A or P033531.

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
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

Tech Tips

If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM


*a	Crankshaft Position Sensor

CAUTION / NOTICE / HINT

Tech Tips

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:

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
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

READ VALUE USING GTS (ENGINE SPEED)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Engine Speed.

Powertrain > Engine > Data List

Tester Display

Engine Speed
Start the engine.

Tester Display
Engine Speed

Read the values displayed on the GTS while the engine is running.

OK
Correct values are displayed.

Tech Tips

To check the engine speed change, display the graph on the GTS.
If the engine does not start, check the engine speed while cranking.
If the engine speed indicated on the GTS remains zero (0), there may be an open or short in the crankshaft position sensor circuit.

Result

Proceed to
OK
NG

CHECK FOR INTERMITTENT PROBLEMS Click here

CHECK TERMINAL VOLTAGE (POWER SOURCE OF CRANKSHAFT POSITION SENSOR)

*a	Front view of wire harness connector (to Crankshaft Position Sensor)

Disconnect the crankshaft position sensor connector.
Turn the engine switch on (IG).

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Condition	Specified Condition
F72-1 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V

Result

Proceed to
OK
NG

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Click here

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

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
F72-3 (NE+) - F66-76 (NE+)	Always	Below 1 Ω
F72-2 (NE-) - F66-109 (NE-)	Always	Below 1 Ω
F72-3 (NE+) or F66-76 (NE+) - Body ground and other terminals	Always	10 kΩ or higher
F72-2 (NE-) or F66-109 (NE-) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

Clearance

Check the crankshaft position sensor installation condition.

OK
Crankshaft position sensor is installed correctly.

Result

Proceed to
OK
NG

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR Click here

INSPECT CRANKSHAFT (TEETH OF CRANKSHAFT POSITION SENSOR PLATE)

Inspect the teeth of the crankshaft position sensor plate.

OK
Crankshaft position sensor plate does not have any cracks or deformation.

Result

Proceed to
OK
NG

REPLACE CRANKSHAFT Click here

REPLACE CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor.

Click here

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P033511, P033515, P03351F, P03352A AND/OR P033531)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs
Turn the engine switch off and wait for at least 30 seconds.
Start the engine.
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
P033511, P033515, P03351F, P03352A and/or P033531 are output	B

Tech Tips

If the engine does not start, replace the ECM.

END

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

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
F72-1 (VC) - F66-110 (VCNE)	Always	Below 1 Ω
F72-1 (VC) or F66-110 (VCNE) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPLACE ECM Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR