Inspection Procedure

HINT:

According to the DATA LIST displayed by the intelligent tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one method to shorten labor time.

1. Warm up the engine.
2. Turn the engine switch off.
3. Connect the intelligent tester together with the CAN VIM (controller area network vehicle interface module) to the DLC3.
4. Turn the engine switch on (IG) position.
5. Turn on the tester.
6. Select the item "DIAGNOSIS / OBD/MOBD / ECT / DATA LIST".
7. According to the display on the tester, read the "DATA LIST".
   DATA LIST REFERENCE
   
   

   Item	Measurement Item/Range (display	Normal Condition
   SPD (SP2)	Output shaft Speed/ min.: 0 km/h (0 mph) max.: 255 km/h (158 mph)	Vehicle stopped: 0 km/h (0 mph) HINT: Equal to vehicle speed

   HINT:

   • SPD (SP2) is always 0 while driving:

     Open or short in the sensor or circuit.

   • The SPD (SP2) value displayed on the tester is much lower than the actual vehicle speed:

     Sensor trouble, improper installation, or intermittent connection trouble of the circuit.

1. Check the speed sensor (SP2) installation.

   OK: 

   The installation bolt is tightened properly and there is no clearance between the sensor and transmission case. 

   Fig 1: Identifying Speed Sensor (SP2) Installation Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: SECURELY INSTALL SPEED SENSOR OR REPLACE SPEED SENSOR 

OK: Go to next step 

1. Disconnect the speed sensor connector from the transmission.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connection	Specified Condition 20°C (68°F)
   1 - 2	560 to 680 Ω

   Fig 2: Identifying Speed Sensor SP2 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SPEED SENSOR (SP2) 

OK: Go to next step 

1. Connect the speed sensor connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   HARNESS AND CONNECTOR (SPEED SENSOR - ECM) STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connection	Specified Condition 20°C (68°F)
   E4-23 (SP2+) - E4-22 (SP2-)	560 to 680 Ω

   Fig 3: Identifying E4 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Measure the resistance according to the value(s) in the table below.

   Standard resistance (Check for short) 

   HARNESS AND CONNECTOR (SPEED SENSOR - ECM) STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connection	Specified Condition
   E4-23 (SP2+) - Body ground	10 kΩ or higher
   E4-22 (SP2-) - Body ground	↑

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ECM