DTC U3003:17 [PARKING ASSIST UNIT (OPTICAL)]

id0902r0057100

Description

Parking assist unit (optical) high power supply voltage input
Detection condition
•  The parking assist unit (optical) detects that the power supply voltage of the parking assist unit (optical) is more than the specified range for a certain period of time.
Fail-safe
•  Black screen displayed when system is starting
Possible cause
•  DTCs are stored in the PCM.
•  Battery malfunction
•  Generator malfunction
•  Parking assist unit (optical) malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY OTHER PARKING ASSIST UNIT (OPTICAL) DTCs
•  Clear the DTC for the parking assist unit (optical) using the M-MDS.
•  Retrieve the parking assist unit (optical) DTCs using the M-MDS.
•  Is DTC U3000:41 or U3000:49 displayed?
Yes
Replace the parking assist unit (optical), then go to the Step 5.
(See PARKING ASSIST UNIT (OPTICAL) REMOVAL/INSTALLATION.)
No
Go to the next step.
2
VERIFY PCM DTCs
•  Retrieve the PCM DTCs using the M-MDS.
•  Are any DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-G 2.5T)].)
(See DTC TABLE [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)
(See DTC TABLE [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)
(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
No
Go to the next step.
3
INSPECT BATTERY
•  Inspect the battery.
•  Is the battery normal?
Yes
Go to the next step.
No
Replace the battery, then go to Step 5.
(See BATTERY REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
(See BATTERY REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
4
INSPECT GENERATOR
•  Inspect the generator.
•  Is the generator normal?
Yes
Go to the next step.
No
Replace the generator, then go to the next step.
(See GENERATOR REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
(See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
(See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].)
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the parking assist unit (optical) using the M-MDS.
•  Retrieve the parking assist unit (optical) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the parking assist unit (optical).
Go to the next step.
No
Go to the next step.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [PARKING ASSIST UNIT (OPTICAL)].)
No
DTC troubleshooting completed.