Toyota Tundra Service Manual: Park / Neutral Position Switch Circuit

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Park / Neutral Position Switch Circuit

DESCRIPTION

This circuit sends the park/neutral position switch assembly signals to the clearance warning ECU assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	CHECK CLEARANCE WARNING ECU ASSEMBLY

(a) Disconnect the clearance warning ECU assembly connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
J35-6 (PL) - Body ground	Ignition switch ON, shift lever in P	11 to 14 V
J35-6 (PL) - Body ground	Ignition switch ON, shift lever not in P	Below 1 V
J35-21 (RL) - Body ground	Ignition switch ON, shift lever in R	11 to 14 V
J35-21 (RL) - Body ground	Ignition switch ON, shift lever not in R	Below 1 V

Text in Illustration

*a	Front view of wire harness connector (to Clearance Warning ECU Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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

(a) Disconnect the D35 park/neutral position switch assembly connector.

(b) Disconnect the J35 clearance warning ECU assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D35-6 (PL) - J35-6 (PL)	Always	Below 1 Ω
D35-1 (RL) - J35-21 (RL)	Always	Below 1 Ω
D35-6 (PL) - Body ground	Always	10 kΩ or higher
D35-1 (RL) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

(a) Disconnect the park/neutral position switch assembly connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
D35-2 (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)

HINT:

*: Park/neutral position switch assembly replacement procedure:

for A760E: See page
for A760F: See page
for AB60E: See page
for AB60F: See page

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY*

REPAIR OR REPLACE HARNESS OR CONNECTOR

See More:

Toyota Tundra Service Manual > Trailer Brake Control System: Precaution
PRECAUTION 1. TROUBLESHOOTING PRECAUTIONS (a) When there is a malfunction in the contact point of the terminals or installation problems with parts, removal and installation of the suspected problem parts may return the system to the normal condition either completely or temporarily. (b) To determin ...

Toyota Tundra Service Manual: Park / Neutral Position Switch Circuit

Operation Check

Parts Location

See More:

Toyota Tundra Owners Manual

Toyota Tundra Service Manual