Inspection Procedure

HINT:

Using Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

1. Warm up the engine.
2. Turn the engine switch off.
3. Connect Techstream to the DLC3.
4. Turn the engine switch on (IG).
5. Turn on the tester.
6. Enter the following items: "Powertrain / ECT / Data List".
7. According to the display on the tester, read "Data List".
   TESTER DISPLAY REFERENCE
   
   

   Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
   Neutral Position SW Signal	PNP switch status/ ON or OFF	Shift lever position is; P and N: ON Except P and N: OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
   Shift SW Status (Ft Range)	PNP switch status/ ON or OFF	Shift lever position is; R: ON Except R: OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
   Shift SW Status (P Range)	PNP switch status/ ON or OFF	Shift lever position is; P: ON Except P: OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
   Shift SW Status (N Range)	PNP switch status/ ON or OFF	Shift lever position is; N. ON Except N. OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect
   Shift SW Status (D Range)	PNP switch status/ ON or OFF	Shift lever position is, D and S. ON Except D and S: OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.

1. Disconnect the park/neutral position switch connector.
2. Measure the resistance according to the value (s) in the table below when the shift lever is moved to each position.

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Shift Position	Specified Condition
   1 - 3 and 4 - 9	P	Below 1 Ω
   	Except P	10 kΩ or higher
   1 - 2	R	Below 1 Ω
   	Except R	10 kΩ or higher
   1 - 8 and 4 - 9	N	Below 1 Ω
   	Except N	10 kΩ or higher
   1 - 7	D, S, "+" and "-"	Below 1 Ω
   	Except D, S, "+" and "-"	10 kΩ or higher

   Fig 1: Identifying Park/Neutral Position Switch Connector B36

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 

OK: Go to next step 

1. Connect the transmission control switch connector of the shift lever assembly.
2. Measure the voltage according to the value (s) in the table below while cranking the engine.

   Standard Voltage 

   STANDARD VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   B40-10 (STA) - Body ground	Engine switch on (IG)	9 to 14 V

   Fig 2: Identifying TCM Connector B40 (STA Terminal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TCM - ECM) 

OK: Go to next step 

1. Disconnect the TCM connector.
2. Turn the engine switch on (IG), and measure the voltage according to the value (s) in the table below when the shift lever is moved to each position.

   Standard Voltage 

   STANDARD VOLTAGE SPECIFICATION
   
   

   Tester Connection	Shift Position	Specified Condition
   B40-15 (R) - Body ground	R	11 to 14 V*
   	Except R	Below 1 V
   B40-16 (D) - Body ground	D	11 to 14 V
   	Except D	Below 1 V
   HINT: *: The voltage will drop slightly because the back up light is turned on.

   Fig 3: Identifying TCM Connector B40 Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - TCM) 

OK: REPLACE TCM