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.

INSPECT SPEED SENSOR INSTALLATION
1. Check the speed sensor installation.
  Standard:
  
  The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case.
Fig 1: Identifying Clearance Between Sensor And Transaxle Case
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SPEED SENSOR (NT)

OK: Go to next step.
INSPECT SPEED SENSOR (NT)
1. Disconnect the speed sensor connector from the trans-axle.
2. Measure the resistance according to the value(s) in the figure Fig 2 below.
  Standard
  
  Fig 2: Identifying Tester Connection Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Measuring Resistance
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE SPEED SENSOR (NT)

OK: Go to next step.
CHECK HARNESS AND CONNECTOR (SPEED SENSOR - ECM)
1. Connect the speed sensor connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the figure Fig 4 below.
  
  Fig 4: Identifying Tester Connection Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard
  
  Fig 5: Identifying Tester Connection Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Measure the resistance according to the value(s) in the figure Fig 6 below.
  Standard (Check for short)
  
  Fig 6: Measuring Resistance
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE )

OK: REPLACE ECM (SEE ECM (3MZ-FE) )