Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM1000000018J6M |
Model Year Start: 2018 |
Model: Sienna |
Prod Date Range: [11/2017 -
] |
Title: PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM: ECU Power Source Circuit; 2018 - 2020 MY Sienna [11/2017 - ] |
DESCRIPTION
This circuit is the power source circuit to operate the parking assist ECU. The parking assist ECU controls the panoramic view monitor system.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuse for circuits related to this system before performing the following inspection procedure.
HINT:
If the parking assist ECU does not operate due to a power source problem, other system DTCs may be stored due to a CAN communication interruption.
PROCEDURE
1.
|
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BODY GROUND)
|
(a) Disconnect the D163 parking assist ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
D163-4 (GND1) - Body ground
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU POWER SOURCE)
|
(a) Disconnect the parking assist ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
D163-1 (+B) - D163-4 (GND1)
|
Always
|
11 to 14 V
|
D163-2 (ACC) - D163-4 (GND1)
|
Engine switch on (ACC)
|
11 to 14 V
|
Engine switch off
|
Below 1 V
|
D163-3 (IG) - D163-4 (GND1)
|
Engine switch on (IG)
|
11 to 14 V
|
Engine switch off
|
Below 1 V
|
|
|
*a
|
Front view of wire harness connector
(to Parking Assist ECU)
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|