DTC U3003:16 [INSTRUMENT CLUSTER]

id0902e8999400

Description

Low power supply voltage input to instrument cluster
Detection condition
•  Instrument cluster power supply circuit voltage of less than 10 V is detected.
Fail-safe
Not applicable
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 1S
?  METER1 10 A fuse malfunction
?  Open circuit in wiring harness between IG1 relay terminal C and instrument cluster terminal 1S
•  Instrument cluster malfunction

Diagnostic Procedure

Step

Inspection

Action
1
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)].)
No
Go to the next step.
2
INSPECT BATTERY
•  Inspect the battery.
•  Is the battery normal?
Yes
Go to the next step.
No
Recharge or replace the battery, then go to Step 6.
(See BATTERY RECHARGING.)
(See BATTERY REMOVAL/INSTALLATION.)
3
INSPECT GENERATOR
•  Inspect the generator.
•  Is the generator normal?
Yes
Go to the next step.
No
Replace the generator, then go to Step 6.
(See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (SKYACTIV-G 2.5T)].)
(See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-G 2.5T)].)
4
INSPECT INSTRUMENT CLUSTER CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  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.
No
Repair or replace the connector, then go to Step 6.
5
VERIFY INSTRUMENT CLUSTER POWER SUPPLY VOLTAGE
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Display the PID VPWR using the M-MDS.
•  Is the voltage B+?
Yes
Go to the next step.
No
Inspect the METER1 10 A fuse.
•  If the fuse is blown:
?  Refer to the wiring diagram and verify whether or not there is a common connector between METER1 10 A fuse and instrument cluster terminal 1S.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
•  Replace the fuse.
•  If the fuse is damaged:
?  Replace the fuse.
•  If the fuse is normal:
?  Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay terminal C and instrument cluster terminal 1S.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to the next step.
6
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Clear the DTC for the instrument cluster using the M-MDS.
•  Retrieve the instrument cluster DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the instrument cluster.
Go to the next step.
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 [INSTRUMENT CLUSTER].)
No
DTC troubleshooting completed.