DTC U3003:16 [INSTRUMENT CLUSTER]

id0902e8999400

Without i-stop System

System malfunction location	Low power supply voltage input to instrument cluster
Detection condition	• Instrument cluster power supply circuit voltage of 10 V or less is detected with the ignition switched ON (engine off or on).
Fail-safe	—
Possible cause	• DTCs are stored in the PCM. • Battery malfunction • Generator malfunction • Instrument cluster connector or terminal malfunction • Instrument cluster power supply circuit malfunction ― Short to ground in wiring harness between METER1 10 A fuse and instrument cluster terminal S ― METER1 10 A fuse malfunction ― Open circuit in wiring harness between IG1 relay and instrument cluster terminal S • Instrument cluster malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Perform the DTC inspection for the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
1		No	Go to the next step.
2	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Is the battery normal?	Yes	Go to the next step.
2		No	Recharge or replace the battery, then go to Step 6. (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
3	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) • Is the generator normal?	Yes	Go to the next step.
3		No	Replace the generator, then go to Step 6. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].)
4	INSPECT INSTRUMENT CLUSTER CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Disconnect the instrument cluster connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
4		No	Repair or replace the connector, then go to Step 6.
5	VERIFY INSTRUMENT CLUSTER POWER SUPPLY VOLTAGE • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Display PID VPWR using the M-MDS. (See PID/DATA MONITOR INSPECTION [INSTRUMENT CLUSTER].) • Is the VPWR monitor value B+?	Yes	Go to the next step.
5		No	Inspect the METER1 10 A fuse. • If a fuse is burnt out: ― Repair or replace the wiring harness which is shorted to ground. ― Replace the fuse. • If a fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Repair or replace the wiring harness which has an open circuit. Go to the next step.
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Reconnect the disconnected negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Clear DTC for the instrument cluster using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER].) • Switch the ignition ON (engine off or on). • Perform the DTC inspection for the instrument cluster using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Is DTC U3003:16 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
6		No	Go to the next step.
7	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [INSTRUMENT CLUSTER].)
7		No	DTC troubleshooting completed.

With i-stop System

System malfunction location

Low power supply voltage input to instrument cluster

Detection condition

•  Instrument cluster power supply circuit voltage of 10 V or less is detected with the ignition switched ON (engine off or on).

Fail-safe

—

Possible cause

•  DTCs are stored in the PCM.

•  Battery malfunction

•  Generator malfunction

•  Instrument cluster connector or terminal malfunction

•  Instrument cluster power supply circuit malfunction

―  Short to ground in wiring harness between METER1 10 A fuse and instrument cluster terminal S

―  METER1 10 A fuse malfunction

―  Open circuit in wiring harness between IG1 relay and instrument cluster terminal S

•  Ignition relay (IG1_STAB) malfunction

•  DC-DC converter connector or terminal malfunction

•  Short to ground in wiring harness between the following terminals:

―  DC-DC converter terminal K—Ignition relay (IG1_STAB) terminal D

―  Ignition relay (IG1_STAB) terminal C—Instrument cluster terminal I

•  Open circuit in wiring harness between the following terminals:

―  DC-DC converter terminal K—Ignition relay (IG1_STAB) terminal D

―  Ignition relay (IG1_STAB) terminal C—Instrument cluster terminal I

•  DC-DC converter malfunction

•  Instrument cluster malfunction

System malfunction location	Low power supply voltage input to instrument cluster
Detection condition	• Instrument cluster power supply circuit voltage of 10 V or less is detected with the ignition switched ON (engine off or on).
Fail-safe	—
Possible cause	• DTCs are stored in the PCM. • Battery malfunction • Generator malfunction • Instrument cluster connector or terminal malfunction • Instrument cluster power supply circuit malfunction ― Short to ground in wiring harness between METER1 10 A fuse and instrument cluster terminal S ― METER1 10 A fuse malfunction ― Open circuit in wiring harness between IG1 relay and instrument cluster terminal S • Ignition relay (IG1_STAB) malfunction • DC-DC converter connector or terminal malfunction • Short to ground in wiring harness between the following terminals: ― DC-DC converter terminal K—Ignition relay (IG1_STAB) terminal D ― Ignition relay (IG1_STAB) terminal C—Instrument cluster terminal I • Open circuit in wiring harness between the following terminals: ― DC-DC converter terminal K—Ignition relay (IG1_STAB) terminal D ― Ignition relay (IG1_STAB) terminal C—Instrument cluster terminal I • DC-DC converter malfunction • Instrument cluster malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Perform the DTC inspection for the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 2.2].)
1		No	Go to the next step.
2	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY INSPECTION [SKYACTIV-D 2.2].) • Is the battery normal?	Yes	Go to the next step.
2		No	Recharge or replace the battery, then go to Step 11. (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY RECHARGING [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
3	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2].) • Is the generator normal?	Yes	Go to the next step.
3		No	Replace the generator, then go to Step 11. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
4	INSPECT INSTRUMENT CLUSTER CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Disconnect the instrument cluster connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
4		No	Repair or replace the connector, then go to Step 11.
5	VERIFY INSTRUMENT CLUSTER POWER SUPPLY VOLTAGE • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Display PID VPWR using the M-MDS. (See PID/DATA MONITOR INSPECTION [INSTRUMENT CLUSTER].) • Is the VPWR monitor value B+?	Yes	Go to the next step.
5		No	Inspect the METER1 10 A fuse. • If a fuse is burnt out: ― Repair or replace the wiring harness which is shorted to ground. ― Replace the fuse. • If a fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Repair or replace the wiring harness which has an open circuit. Go to Step 11.
6	INSPECT IGNITION RELAY (IG1_STAB) • Switch the ignition to off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Remove the ignition relay (IG1_STAB). (See RELAY LOCATION.) • Inspect the ignition relay (IG1_STAB). (See RELAY INSPECTION.) • Is the ignition relay (IG1_STAB) normal?	Yes	Go to the next step.
6		No	Replace the ignition relay (IG1_STAB), then go to Step 11. (See RELAY LOCATION.)
7	INSPECT DC-DC CONVERTER CONNECTOR CONDITION • Disconnect the DC-DC converter connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
7		No	Repair or replace the connector, then go to Step 11.
8	INSPECT DC-DC CONVERTER CIRCUIT FOR SHORT TO GROUND • Verify that the DC-DC converter connector is disconnected. • Disconnect the instrument cluster connector. • Inspect the wiring harness between the following terminals (vehicle wiring harness side) and body ground for continuity. ― DC-DC converter terminal K ― Ignition relay (IG1_STAB) terminal D ― Instrument cluster terminal I • Is there continuity?	Yes	Repair or replace the wiring harness which is shorted to ground, go to Step 11.
8		No	Go to the next step.
9	INSPECT DC-DC CONVERTER CIRCUIT FOR OPEN CIRCUIT • Verify that the instrument cluster and DC-DC converter connectors are disconnected. • Inspect the wiring harness between the following terminals (vehicle wiring harness side) for continuity. ― DC-DC converter terminal K—Ignition relay (IG1_STAB) terminal D ― Ignition relay (IG1_STAB) terminal C—Instrument cluster terminal I • Is there continuity?	Yes	Go to the next step.
9		No	Repair or replace the wiring harness which has an open circuit, go to Step 11.
10	INSPECT DC-DC CONVERTER • Inspect the DC-DC converter. (See DC-DC CONVERTER INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See DC-DC CONVERTER (i-ELOOP) INSPECTION [i-ELOOP].) (See DC-DC CONVERTER INSPECTION [SKYACTIV-D 2.2].) • Is the DC-DC converter normal?	Yes	Go to the next step.
10		No	Replace the DC-DC converter, then go to the next step. (See DC-DC CONVERTER REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See DC-DC CONVERTER (i-ELOOP) REMOVAL/INSTALLATION [i-ELOOP].) (See DC-DC CONVERTER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
11	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Reconnect the disconnected negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Clear DTC for the instrument cluster using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER].) • Switch the ignition ON (engine off or on). • Perform the DTC inspection for the instrument cluster using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Is DTC U3003:16 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
11		No	Go to the next step.
12	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [INSTRUMENT CLUSTER].)
12		No	DTC troubleshooting completed.