| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000014WA8 |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - 10/2020] |
| Title: PRE-COLLISION: PRE-COLLISION SYSTEM: ECU Power Source Circuit; 2018 - 2020 MY Camry HV [07/2017 - 10/2020] | ||
|
ECU Power Source Circuit |
DESCRIPTION
This circuit supplies power to the millimeter wave radar sensor assembly when the power switch is on (IG).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY (B VOLTAGE) |
|
(a) Disconnect the A30 millimeter wave radar sensor assembly connector. |
|
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A30-8 (IGB) - Body ground |
Power switch on (IG) |
11 to 14 V |
(d) Turn the power switch off.
(e) Connect the A30 millimeter wave radar sensor assembly connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
|
2. |
CHECK HARNESS AND CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - BODY GROUND) |
|
(a) Disconnect the A30 millimeter wave radar sensor assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A30-1 (SGND) - Body ground |
Always |
Below 1 Ω |
(c) Connect the A30 millimeter wave radar sensor assembly connector.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|