DESCRIPTION
DTC C1621 is stored if the parking assist ECU determines that the input/output signal communication with the rear television camera assembly is abnormal.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1621 | Back Camera Current Malfunction | Rear television camera assembly power supply malfunction |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the J158 parking assist ECU connector.
(b) Disconnect the Z11 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 |
---|---|---|
J158-33 (CB+) - Z11-6 (CB+) | Always | Below 1 Ω |
J158-32 (CGND) - Z11-5 (CGND) | Always | Below 1 Ω |
J158-33 (CB+) or Z11-6 (CB+) - Body ground | Always | 10 kΩ or higher |
J158-32 (CGND) or Z11-5 (CGND) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. | CHECK PARKING ASSIST ECU (CB+, CGND) |
(a) Connect the J158 parking assist ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J158-32 (CGND) - 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 |
---|---|---|
J158-33 (CB+) - J158-32 (CGND) | Engine switch on (IG) | 5.5 to 7.05 V |
OK | ![]() | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
NG | ![]() | REPLACE PARKING ASSIST ECU |
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