Inspection Procedure

1. Shift the shift lever (M/T) or transmission gear selector lever (A/T) to the neutral position.
2. Jack up the vehicle.
3. Turn the ignition switch to ON.
4. Check the voltage while turning the wheel slowly.

   Standard 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-13 (SI) - Body ground	Voltage generated intermittently

   Fig 1: Identifying Combination Meter Connector And Voltage Graph

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   The output voltage should fluctuate up and down as shown in the diagram on the left when the wheel is turning slowly.

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

NG: Go to next step 

1. Check the vehicle's transaxle type.

   Result 

   RESULT
   
   

   Transaxle Type	Proceed to
   M/T	A
   A/T	B

B:  Go to step  5

A: Go to next step 

1. Remove the speed sensor.
2. Connect the positive (+) lead from the battery to terminal 1 and the negative(-) lead to terminal 2.
3. Connect the positive (+) lead from the tester to terminal 3 and the negative (-) lead to terminal 2.
4. Rotate the shaft.
5. Check that the voltage output between terminals 2 and 3 varies between 0V and 11V.
Fig 2: Identifying Voltage Output Between Speed Sensor Terminals 2 And 3
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Reinstall the speed sensor.

NG: REPLACE SPEED SENSOR 

OK: Go to next step 

1. Disconnect the E13 combination meter assembly connector.
Fig 3: Identifying Speed Sensor And Combination Meter Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the B44 speed sensor connector.
3. Measure the resistance

   Standard resistance 

   RESISTANCE TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-13 (SI) - B44-3 (SI)	Below 1 Ω
   B44-2 (SE) - E13-4 (SE)	Below 1 Ω

4. Reconnect the combination meter assembly connector.
5. Measure the voltage

   Standard voltage 

   VOLTAGE TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   B44-1 (IG+) - Body ground	Ignition switch ON	11 to 14V

6. Reconnect the speed sensor connector

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON and the tester ON.
3. Select the item below from the Data List, and read the value displayed on the Techstream.

   METER 

   DATA LIST - METER
   
   

   Item	Measurement Item / Range(Display)	Normal Condition	Diagnostic Note
   SPEED METER	Vehicle speed / Min.: 0 mph (0 km/h), Max.: 158mph (255 km/h)	Approximately same as actual vehicle speed (When vehicle is driven)	-

   OK: 

   Vehicle speed displayed on the tester is approximately the same as the actual vehicle speed. 

NG: GO TO BRAKE SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next step 

1. Disconnect the E13 combination meter assembly connector.
2. Disconnect the A4 skid control ECU connector.
3. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-E13 (SI) - A4-12 (SP1)	Below 1 Ω
   A4-32 (GND2) - Body ground	Below 1 Ω

   Fig 4: Identifying Skid Control ECU And Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )