DTC P0335-1F: Crankshaft Position Sensor "A" Circuit Intermittent; DTC P0335-2A: Crankshaft Position Sensor "A" Signal Stuck in Range; DTC P0335-31: Crankshaft Position Sensor "A" No Signal [10/2017 - 09/2018]: Procedure

1. Check the engine cranking condition.

   Result

   Result	Proceed to
   Cranking is OK	A
   Does not crank at all*	B

   HINT: 

   *: When the engine cannot crank, there may be a malfunction in the starter assembly.

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE (ENGINE DOES NOT CRANK (DOES NOT START)). Refer to  PROBLEM SYMPTOMS TABLE [10/2017 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.

   Powertrain > Engine > Data List 

   Tester Display
   Engine Speed

5. Start the engine.
6. 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 at zero (0), there may be an open or short in the crankshaft position sensor circuit.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [10/2017 - ] 

Result: 

NG 

See step  3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT: 

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

1. Disconnect the crankshaft position sensor connector.
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   F84-1 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V
   F84-3 (NE+) - Body ground	Engine switch on (IG)	3.0 to 5.0 V

4. Turn the engine switch off and wait for at least 30 seconds.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F84-1 (VC) - F84-3 (NE+)	Engine switch off	1.425 to 1.575 kΩ
   F84-2 (NE-) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  6

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Visually check the crankshaft position sensor for damage.
2. 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

Result: 

NG 

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR. Refer to  INSTALLATION [10/2017 - ] 

Result: 

OK 

See step  5

1. Inspect the teeth of the No. 1 crankshaft position sensor plate.

   OK

   No. 1 crankshaft position sensor plate does not have any cracks or deformation.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CRANKSHAFT POSITION SENSOR. Refer to  REMOVAL [10/2017 - ] 

Result: 

NG 

REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE. Refer to  REMOVAL [10/2017 - ] 

1. Disconnect the crankshaft position sensor connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F84-1 (VC) - F102-96 (VCNE)	Always	Below 1 Ω
   F84-2 (NE-) - F102-95 (NE-)	Always	Below 1 Ω
   F84-3 (NE+) - F102-128 (NE+)	Always	Below 1 Ω
   F84-1 (VC) or F102-96 (VCNE) - Body ground and other terminals	Always	10 kΩ or higher
   F84-2 (NE-) or F102-95 (NE-) - Body ground and other terminals	Always	10 kΩ or higher
   F84-3 (NE+) or F102-128 (NE+) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [10/2017 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR