DTC P0335-62: Crankshaft Position Sensor "A" Signal Compare Failure [11/2021 - 03/2023]: Procedure

1. Enter the following menus: Powertrain / Engine / Trouble Codes.

   Powertrain > Engine > Trouble Codes 

2. Read the DTCs

   Result

   Result	Proceed to
   Engine control system DTCs are not output	A
   Engine control system crank position sensor circuit DTC is output	B

Result: 

B 

GO TO ENGINE CONTROL SYSTEM 

for A25A-FKS: Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2022 - 03/2023]

for T24A-FTS: Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2023]

Result: 

A 

See step  2

1. Start the engine.
2. Enter the following menus: Powertrain / Stop and Start / Data List / Engine Speed.
3. According to the display on the GTS, read the Data List.

   Powertrain > Stop and Start > Data List 

   Tester Display
   Engine Speed

   OK

   Engine speed signal is input (the speeds displayed on the tachometer and the GTS are almost the same).

   Result

   Result	Proceed to
   OK	A
   NG (for A25A-FKS)	B
   NG (for T24A-FTS)	C

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

C 

See step  4

Result: 

B 

See step  3

1. Disconnect the engine stop and start ECU connector.
2. Disconnect the ECM connector.
3. Disconnect the certification ECU (smart key ECU assembly) connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A29-10 (NE) - A20-16 (NEC)	Always	Below 1 Ω
   A29-10 (NE) - Body ground	Always	10 kΩ or higher
   A20-16 (NEC) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  5

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the engine stop and start ECU connector.
2. Disconnect the ECM connector.
3. Disconnect the certification ECU (smart key ECU assembly) connector.
4. Disconnect the stereo component equalizer assembly connector.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A29-10 (NE) - A19-19 (NEO)	Always	Below 1 Ω
   A29-10 (NE) - Body ground	Always	10 kΩ or higher
   A19-19 (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  5

1. Disconnect the engine stop and start ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A29-6 (DGND) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Connect an oscilloscope to the NE and DGND terminals of the engine stop and start ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component with harness connected (Engine Stop and Start ECU)

   -

   -

2. Start the engine.
3. Check the signal waveform according to the condition(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Item	Condition
   Tester Connection	A29-10 (NE) - A29-6 (DGND)
   Tool Setting	5 V/DIV., 2 ms./DIV.
   Condition	Idling with warm engine

   Result

   Result	Proceed to
   Pulse generation (See waveform)	A
   Stuck at 0 to 1.5 V	B
   Stuck at 8 to 14 V	C

Result: 

A 

REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [11/2021 - ] 

Result: 

C 

GO TO ENGINE CONTROL SYSTEM 

for A25A-FKS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

for T24A-FTS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

Result: 

B 

See step  7

1. Disconnect the ECM connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component with harness connected (Engine Stop and Start ECU)

   -

   -

2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   A29-10 (NE) - A29-6 (DGND)	Ignition switch ON	8 to 14 V

   HINT: 

   DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO ENGINE CONTROL SYSTEM 

for A25A-FKS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

for T24A-FTS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

Result: 

NG 

REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [11/2021 - ]