DTC P0335-31: Crankshaft Position Sensor "A" No Signal [09/2022 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Active Noise Control > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Check for DTCs with all of the detection conditions met.

   Body Electrical > Active Noise Control > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

NG 

See step  3

1. Disconnect the G15 stereo component equalizer assembly connector.
2. Disconnect the A25 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G15-3 (NEI) - A25-30 (NEO)	Always	Below 1 Ω
   G15-3 (NEI) or A25-30 (NEO) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. According to the table and using an oscilloscope, measure the waveform with the stereo component equalizer assembly connected.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component with harness connected (Stereo Component Equalizer Assembly)

   *b

   Waveform

   Item	Condition
   Measurement terminal	G15-3 (NEI) - Body ground
   Tool setting	5 V/DIV., 20 ms./DIV.
   Vehicle condition	Idling after warming up

   OK

   The waveform is similar to that shown in the illustration.

   HINT: 

   The oscilloscope waveform shown in the illustration is an example for reference only. The waveform fluctuates according to engine speed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY. Refer to  REMOVAL [06/2018 - ] 

Result: 

NG 

GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]