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 AND SPECIFIED CONDITION
   
   

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

   HINT:

   The output voltage should fluctuate up and down as shown in Fig 1 when the wheel is turning slowly.

   Fig 1: Identifying Combination Meter Assembly Connector & Voltage Graph

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE COMBINATION METER ASSEMBLY 

NG: Go TO NEXT STEP 

1. Check the vehicle's transaxle type.

   Result 

   RESULT REFERENCE
   
   

   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: Measuring Voltage Output Between Speed Sensor Terminals 2 & 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.
2. Disconnect the B44 speed sensor connector.
   Fig 3: Identifying Speed Sensor & Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   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 SPECIFICATION
   
   

   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 

1. Connect the intelligent tester 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 intelligent tester.

   METER 

   DATA LIST (METER)
   
   

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   SPEED METER	Vehicle speed / Min.: 0 MPH (0 km/h), Max.: 158 MPH (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 

OK: Go TO NEXT STEP 

1. Disconnect the E13 combination meter assembly connector.
2. Disconnect the A4 skid control ECU connector.
   Fig 4: Identifying Skid Control ECU & Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

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

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY