Last Modified: 11-29-2007 1.6 J
Service Category: Audio/Visual/Telematics Section: Park Assist/Monitoring
Model Year: 2008 Model: Sequoia Doc ID: RM000002BIZ008X
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: DESCRIPTION (2008 Sequoia)

Park / Neutral Position Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT PARK / NEUTRAL POSITION SWITCH

(a) Disconnect the D21 park/neutral position switch connector.

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

Standard Resistance:

Tester Condition

Condition

Specified Condition

6 (PL) - 2 (RB)

Shift lever in P

Below 1 Ω

1 (RL) - 2 (RB)

Shift lever in R

Below 1 Ω

6 (PL) - 2 (RB)

Shift lever not in P

10 kΩ or higher

1 (RL) - 2 (RB)

Shift lever not in R

10 kΩ or higher

Result

Result

Proceed to

OK

A

NG (for A750E)

B

NG (for A750F)

C

NG (for AB60E)

D

NG (for AB60F)

E

(c) Reconnect the park/neutral position switch connector.

A

2.

CHECK HARNESS AND CONNECTOR (SWITCH - CLEARANCE WARNING ECU - BATTERY AND BODY GROUND)

(a) Disconnect the D21 park/neutral position switch connector.

(b) Disconnect the H43 clearance warning ECU connector.

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

Standard Voltage:

Tester Condition

Switch Condition

Specified Condition

D21-2 (RB) - Body ground

Ignition switch ON

11 to 14 V

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

Standard Resistance:

Tester Condition

Condition

Specified Condition

D21-6 (PL) - H43-1 (PL)

Always

Below 1 Ω

D21-1 (RL) - H43-13 (RL)

D21-6 (PL) - Body ground

Always

10 kΩ or higher

D21-1 (RL) - Body ground

(e) Reconnect the park/neutral position switch connector.

(f) Reconnect the clearance warning ECU connector.

OK