Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data recorded the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
READ VALUE WITH HAND-HELD TESTER OR OBD II SCAN TOOL
1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
2. Start the engine and turn the hand-held tester or the OBD II scan tool ON.
3. Select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / ENGINE SPD.
The engine speed can be confirmed in DATA LIST using the hand-held tester or OBD II scan tool. If there is no NE signals from the crankshaft position sensor despite the engine revolving, the engine speed will be indicated as zero. If voltage output of the crankshaft position sensor is insufficient, the engine speed will be indicated as lower PRM (than the actual RPM).

INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)
1. Disconnect the C2 crankshaft position sensor connector.
2. Measure the resistance between terminals 1 and 2.
  Standard:
  
  Fig 1: Crankshaft Position Sensor Connector Terminals Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Identifying Crankshaft Position Sensor Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: In the above section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C to 50°C (14°F to 122°F). "Hot" means approximately 50°C to 100°C (122°F to 212°F).
3. Reconnect the crankshaft position sensor connector.
NG: REPLACE CRANKSHAFT POSITION SENSOR (See CRANKSHAFT POSITION SENSOR (3MZ-FE) )

OK: GO TO NEXT STEP.
CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
1. Disconnect the C2 crankshaft position sensor connector.
2. Disconnect the E8 ECM connector.
3. Check the resistance between the wire harness side connectors.
  Standard (Check for open):
  
  Fig 3: Crankshaft Position Sensor And ECM Terminals Specified Condition Chart (Check For Open)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard (Check for short):
  
  Fig 4: Crankshaft Position Sensor And ECM Terminals Specified Condition Chart (Check For Short)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reconnect the crankshaft position sensor connector.
5. Reconnect the ECM connector.
  
  Fig 5: Identifying Crankshaft Position Sensor Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 6: Connecting E8 ECM Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: GO TO NEXT STEP.
CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
NG: TIGHTEN SENSOR

OK: GO TO NEXT STEP.
CHECK CRANKSHAFT TIMING PULLEY
1. Check the teeth of the crankshaft timing pulley.
NG: REPLACE CRANKSHAFT TIMING PULLEY

OK: GO TO NEXT STEP.

REPLACE ECM (See ECM (3MZ-FE) )