DTC P0335-62: Crankshaft Position Sensor "A" Signal Compare Failure [10/2022 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   Body Electrical > Power Source Control > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Engine Driving Condition (Line)	Engine state	Stop or Driving	Stop: Engine stopped Driving: Engine running	-

   Body Electrical > Power Source Control > Data List 

   Tester Display
   Engine Driving Condition (Line)

   Body Electrical > Power Source Control > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Engine Speed	Engine speed	0 to 16383.75 rpm	Fluctuates in accordance with actual engine speed	-

   Body Electrical > Power Source Control > Data List 

   Tester Display
   Engine Speed

   OK

   The GTS display changes correctly in response to the engine condition.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ] 

Result: 

NG 

See step  2

Pre-procedure1

• Disconnect the A7 certification ECU (smart key ECU assembly) connector.
• Disconnect the A16 ECM connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A7-15 (NE) - A16-19 (NEO)	Always	Below 1 Ω	Ω
  A7-15 (NE) or A16-19 (NEO) - Other terminals and body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

Pre-procedure1

• Connect the A7 certification ECU (smart key ECU assembly) connector.
• Connect the A16 ECM connector.

• Using an oscilloscope, check the engine speed input signal waveform at the terminal of the certification ECU (smart key ECU assembly).

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

  OK

  Tester Connection	Condition	Specified Condition
  A7-15 (NE) - Body ground	Engine stopped	No pulse generation
  A7-15 (NE) - Body ground	Engine running	Pulse generation

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]