Inspection Procedure

1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

B: GO TO CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to Next Step 

1. Disconnect the D21 switch connector.
2. Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   2 (RB) - 6 (PL)	Shift lever in P	Below 1 Ω
   2 (RB) -1 (RL)	Shift lever in R
   2 (RB) - 9 (NL)	Shift lever in N
   2 (RB) - 7 (DL)	Shift lever in D Shift lever in S, "+" and
   4 (B) - 5 (L)	Shift lever in P or N
   2 (RB) - 6 (PL)	Shift lever not in P	10 kΩ or higher
   2 (RB) -1 (RL)	Shift lever not in R
   2 (RB) - 9 (NL)	Shift lever not in N
   2 (RB) - 7 (DL)	Shift lever not in D Shift lever not in S, "+" and "-"
   4 (B) - 5 (L)	Shift lever in P and N

NG: REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY 

Fig 1: Identifying D21 Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the D21 switch connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   D21-2 (RB) - Body ground	Ignition switch ON	11 to 14 V
   D21-2 (RB) - Body ground	Ignition switch off	Below 1 V

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

Fig 2: Identifying D21 Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the D21 switch connector.
2. Disconnect the D56 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   D21-4 (B) - D56-120 (NSW)	Always	Below 1 Ω
   D21-4 (B) or D56-120 (NSW) - Body ground	Always	10 kΩ or higher

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

Fig 3: Identifying D21 Switch Connector Terminal And D56 ECM Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the D56 ECM connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.
   Fig 4: Identifying D56 ECM Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   D56-2 (P) - Body ground	Ignition switch ON Shift lever in P	11 to 14 V
   D56-26 (R) - Body ground	Ignition switch ON Shift lever in R	11 to 14 V*
   D56-25 (N) - Body ground	Ignition switch ON Shift lever in N	11 to 14 V
   D56-27 (D) - Body ground	Ignition switch ON Shift lever in D
   D56-2 (P) - Body ground	Ignition switch ON Shift lever not in P	Below 1 V
   D56-26 (R) - Body ground	Ignition switch ON Shift lever not in R
   D56-25 (N) - Body ground	Ignition switch ON Shift lever not in N
   D56-27 (D) - Body ground	Ignition switch ON Shift lever not in D
   HINT: *: The voltage will drop slightly due to the turning on of the back up light.

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   NG	A
   OK (for 2UZ-FE)	B
   OK (for 3UR-FE)	C
   OK (for 3UR-FBE)	D

B: REPLACE ECM  (See REMOVAL )

C: REPLACE ECM  (See REMOVAL )

D: REPLACE ECM  (See REMOVAL )

A: REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK / NEUTRAL POSITION SWITCH - ECM)