Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ6T
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Navigation Receiver Assembly Power Source Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

Navigation Receiver Assembly Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the navigation receiver assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY POWER SOURCE)

(a) Disconnect the navigation receiver assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D57-7 (GND1) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

D57-4 (+B1) - D57-7 (GND1)

Always

11 to 14 V

D57-3 (ACC1) - D57-7 (GND1)

Ignition switch ACC

11 to 14 V

D153-1 (IG) - D57-7 (GND1)

Ignition switch ON

11 to 14 V

Text in Illustration

*a

Front view of wire harness connector

(to Navigation Receiver Assembly)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR