Toyota Parking Assist-Sensor System (W/O Multi-Display) Park / Neutral Position Switch Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - PARK/NEUTRAL POSITION SWITCH)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1. Disconnect the C40 park/neutral position switch assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   1 (RL) - 2 (RB)	Shift lever in R	Below 1 Ω
   1 (RL) - 2 (RB)	Shift lever not in R	10 kΩ or higher

   Result

   Result	Proceed to
   OK	A
   NG (for A750F)	B
   NG (for AC60F)	C

1. Disconnect the C40 park/neutral position switch assembly connector.
   

2. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C40-2 (RB) - Body ground	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Park/Neutral Position Switch Assembly)

1. Disconnect the I1 clearance warning ECU connector.
   

2. Disconnect the C40 park/neutral position switch assembly connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   I1-13 (RL) - C40-1 (RL)	Always	Below 1 Ω
   I1-13 (RL) - Body ground	Always	10 kΩ or higher