DTC P0335 Crankshaft Position Sensor "A" Circuit; DTC P0339 Crankshaft Position Sensor "A" Circuit Intermittent: Wiring Diagram

Fig 1: Crankshaft Position Sensor Circuit - Wiring Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• If no problem is found by this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
• Check the engine speed. The engine speed can be checked by using the intelligent tester. To check, follow the operation below:
  1. Connect the intelligent tester to the DLC3.
  2. Start the engine.
  3. Turn the tester on.
  4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / ENGINE SPD.

     The engine speed may be indicated as zero despite the engine revolving normally. This is caused by a lack of NE signals from the crankshaft position (CKP) sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed, if the CKP sensor output voltage is insufficient.

• Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (See FREEZE FRAME DATA  ).

1. INSPECT CRANKSHAFT POSITION SENSOR 
   1. Disconnect the E9 crankshaft position (CKP) sensor connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Condition	Specified Condition
      1 - 2	Cold	1,630 to 2,740 Ω
      1 - 2	Hot	2,065 to 3,225 Ω

      Fig 2: Identifying E9 Crankshaft Position (CKP) Sensor Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      Terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F).

   3. Reconnect the CKP sensor connector.

   NG : REPLACE CRANKSHAFT POSITION SENSOR 

   OK : GO TO NEXT STEP 

2. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
   1. Disconnect the E9 CKP sensor connector.
   2. Disconnect the E3 ECM connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open) 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      E9-1 - NE+ (E3-32)	Below 1 Ω
      E9-2 - NE- (E3-31)	Below 1 Ω

      Standard resistance (Check for short) 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      E9-1 or NE+ (E3-32) - Body ground	10 kΩ or higher
      E9-2 or NE- (E3-31) - Body ground	10 kΩ or higher

      Fig 3: Identifying E3 ECM Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Reconnect the ECM connector.
   5. Reconnect the CKP sensor connector.

   NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK : GO TO NEXT STEP 

3. CHECK CRANK POSITION SENSOR (SENSOR INSTALLATION) 
   1. Check the CKP sensor installation.
      Fig 4: Checking CKP Sensor Installation

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Sensor is installed correctly. 

   NG : REPAIR OR REPLACE CRANK POSITION SENSOR 

   OK : GO TO NEXT STEP 

4. CHECK CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE) 
   1. Check the teeth of the sensor plate.

      OK: Sensor plate does not have any cracks or deformation. 

   NG : REPLACE CRANKSHAFT POSITION SENSOR PLATE 

   OK : REPLACE ECM