DTC U3003:17 [PARKING ASSIST UNIT]

id0902q6243200

Description

Parking assist unit high power supply voltage input

Detection condition

•  Parking assist unit power supply circuit voltage of 16.8 ± 0.8 V or more is detected for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe

•  Inhibits the smart city brake support [reverse] (SCBS R).^*1

Possible cause

•  DTCs are stored in the PCM.

•  DTCs are stored in the DC-DC converter (i-ELOOP). (With i-ELOOP)

•  Battery malfunction

•  Generator malfunction

•  Parking assist unit malfunction

System wiring diagram

Not applicable

Description	Parking assist unit high power supply voltage input
Detection condition	• Parking assist unit power supply circuit voltage of 16.8 ± 0.8 V or more is detected for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	• Inhibits the smart city brake support [reverse] (SCBS R).^*1
Possible cause	• DTCs are stored in the PCM. • DTCs are stored in the DC-DC converter (i-ELOOP). (With i-ELOOP) • Battery malfunction • Generator malfunction • Parking assist unit malfunction
System wiring diagram	Not applicable

*1 :With smart city brake support [reverse] (SCBS R)

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY OTHER PARKING ASSIST UNIT DTCs • Clear the DTC for the parking assist unit using the M-MDS. (See CLEARING DTC [PARKING ASSIST UNIT].) • Retrieve the parking assist unit DTCs using the M-MDS. (See DTC INSPECTION [PARKING ASSIST UNIT].) • Is DTC U3000:49 displayed?	Yes	Replace the parking assist unit, then go to the Step 6. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)
1		No	Go to the next step.
2	VERIFY PCM DTCs • Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) (See ON-BOARD DIAGNOSTIC TEST [MZR 1.6].) • Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 1.5].) (See DTC TABLE [SKYACTIV-D 2.2].) (See DTC TABLE [MZR 1.6].)
2		No	Without i-ELOOP • Go to Step 4. With i-ELOOP • Go to the next step.
3	VERIFY DC-DC CONVERTER (i-ELOOP) DTCs • Retrieve the DC-DC converter (i-ELOOP) DTCs using the M-MDS. (See DTC INSPECTION [i-ELOOP].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [i-ELOOP].)
3		No	Go to the next step.
4	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY INSPECTION [SKYACTIV-D 1.5].) (See BATTERY INSPECTION [SKYACTIV-D 2.2].) (See BATTERY INSPECTION [MZR 1.6].) • Is the battery normal?	Yes	Go to the next step.
4		No	Replace the battery, then go to Step 6. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [MZR 1.6].)
5	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-D 1.5].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2 (WITHOUT i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2 (WITH i-ELOOP)].) (See GENERATOR INSPECTION [MZR 1.6].) • Is the generator normal?	Yes	Go to the next step.
5		No	Replace the generator, then go to the next step. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2 (WITHOUT i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2 (WITH i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [MZR 1.6].)
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Clear the DTC for the parking assist unit using the M-MDS. (See CLEARING DTC [PARKING ASSIST UNIT].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Retrieve the parking assist unit DTCs using the M-MDS. (See DTC INSPECTION [PARKING ASSIST UNIT].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the parking assist unit. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	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].)
7		No	DTC troubleshooting completed.