Lexus ES: Back Camera Power Supply Failure (C1621)
DESCRIPTION
This DTC is stored if the rear television camera assembly judges as a result of its self check that the signals or signal lines between the rear television camera assembly and parking assist ECU are not normal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1621 | Back Camera Power Supply Failure | Rear television camera assembly power supply failure |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
When "!" is displayed on the multi-display assembly after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.
Click here
.gif)
-
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the panoramic view monitor system may be needed.
Click here
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the N43 parking assist ECU connector.
(b) Disconnect the T2 rear television camera assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N43-32 (CGND) - T2-5 (CGND) | Always | Below 1 Ω |
| N43-32 (CGND) or T2-5 (CGND) - Body ground | Always | 10 kΩ or higher |
| NG |  | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 2. | CHECK HARNESS AND CONNECTOR (ACC POWER SUPPLY - BODY GROUND) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| T2-6 (CB+) - Body ground | Engine switch on (IG) | 11 to 14 V |
| OK | | REPLACE PARKING ASSIST ECU |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Open or Short Circuit in Back Camera Signal (C1622)
DESCRIPTION DTC C1622 is stored if the parking assist ECU judges as a result of its self check that the signals or signal lines between the parking assist ECU and the rear television camera assembly a
Open or Short in Steering Angle Sensor +B (C1625)
DESCRIPTION
This DTC is stored if the parking assist ECU receives a signal via CAN communication from the steering sensor that indicates a power supply system problem.
This DTC is stored if the r
Steering Angle Sensor Failure (C1626)
DESCRIPTION
This DTC is stored if the parking assist ECU receives a signal via CAN communication from the steering sensor that indicates an internal malfunction.
This DTC is stored if the rear te
SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Avoid any impact to the blind spot monitor sensor.
Do not drop the blind spot monitor sensor. If it is dropped, replace it with a new one.
HINT:
The blind spot monitor beam axis confirmation is performed to confirm whether the sensor beam axis
Lost Communication With ECM/PCM "A" (U0100-U0122,U0124,U0126,U1103)
DESCRIPTION The absorber control ECU receives signals from the ECM, skid control ECU (brake actuator assembly), airbag ECU assembly, steering sensor and engine stop and start ECU* via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communicat
