DTC U3003:17 [i-ELOOP]

id130201001300

DTC U3003:17

DC-DC converter (i-ELOOP) system: power supply voltage high input
DETECTION CONDITION
•  Any of the following conditions is met for a continuous 5 s period:
―  DC-DC converter (i-ELOOP) terminal 4A voltage: 16 V or more
―  DC-DC converter (i-ELOOP) terminal 2A voltage: 16 V or more
FAIL-SAFE FUNCTION
•  Not applicable
POSSIBLE CAUSE
•  PCM DTC or pending code is stored.
•  Battery malfunction
•  Generator malfunction
•  DC-DC converter (i-ELOOP) malfunction
SYSTEM WIRING DIAGRAM
•  Not applicable

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
VERIFY PCM DTCs
•  Switch the ignition off, then ON (engine off).
•  Retrieve the PCM DTCs using the M-MDS.
•  Are any DTCs present?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
No
Go to the next step.
3
INSPECT BATTERY
•  Inspect the battery.
•  Is there any malfunction?
Yes
Recharge or replace the battery, then go to Step 5.
(See BATTERY RECHARGING [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
No
Go to the next step.
4
INSPECT GENERATOR
•  Inspect the generator.
•  Is there any malfunction?
Yes
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 (WITH i-ELOOP)].)
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2 (WITH i-ELOOP)].)
No
Go to the next step.
5
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC for the DC-DC converter (i-ELOOP) using the M-MDS.
•  Switch the ignition off.
•  Switch the ignition ON (engine on) and wait for 5 s or more.
•  Retrieve the DC-DC converter (i-ELOOP) DTCs using the M-MDS.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the DC-DC converter (i-ELOOP).
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 [i-ELOOP].)
No
DTC troubleshooting completed.