DTC U3003:16 [AUTO LEVELING CONTROL MODULE]

id090277935200

Caution
•  Vehicle specifications differ depending on the vehicle identification number (VIN).
Type A VIN:
?  JM0 TC2WLA*# 100001—299999
?  JM0 TC4WLA*# 100001—299999
?  JMZ TB5WYA*# 100001—599999
?  JMZ TB6WYA*# 100001—599999
?  JMZ TBEWYA*# 100001—599999
?  JMZ TBFWYA*# 100001—599999
?  JM7 TC2WLA*# 100001—299999
?  JM7 TC4WLA*# 100001—299999
?  JM5 TCAWY**# 100001—299999
?  JM6 TC2WLA*# 100001—299999
?  JM6 TC4WLA*# 100001—299999
Type B VIN:
?  JM0 TC2WLA*# 300001—399999
?  JM0 TC4WLA*# 300001—399999
?  JMZ TB5WYA*# 600001—
?  JMZ TB6WYA*# 600001—
?  JMZ TBEWYA*# 600001—699999
?  JMZ TBFWYA*# 600001—699999
?  JM7 TC2WLA*# 300001—399999
?  JM7 TC4WLA*# 300001—399999
?  JM5 TCAWY**# 300001—399999
?  JM6 TC2WLA*# 300001—399999
?  JM6 TC4WLA*# 300001—399999
Type C VIN:
?  JM0 TC2WLA*# 400001—
?  JM0 TC4WLA*# 400001—
?  JM5 TCAWY**# 400001—
?  JM6 TC2WLA*# 400001—
?  JM6 TC4WLA*# 400001—
?  JM7 TC2WLA*# 400001—
?  JM7 TC4WLA*# 400001—
?  JMZ TBEWYA*# 700001—
?  JMZ TBFWYA*# 700001—

Description

Auto leveling control module low power supply voltage input
Detection condition
•  Auto leveling control module power supply circuit voltage of 9.0 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe
•  The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause
•  DTCs are stored in the PCM.
•  Battery malfunction
•  Generator malfunction
•  Auto leveling control module connector or terminal malfunction
•  Auto leveling control module power supply circuit malfunction
?  Short to ground in wiring harness between ENGINE.IG1 7.5 A fuse (without auto leveling sensor)/METER1 10 A fuse (with auto leveling sensor) and auto leveling control module terminal N
?  ENGINE.IG1 7.5 A fuse (without auto leveling sensor)/METER1 10 A fuse (with auto leveling sensor) malfunction
?  Open circuit in wiring harness between IG1 relay terminal C and auto leveling control module terminal N
•  Auto leveling control module malfunction
*1   :Without auto leveling sensor
*2   :With auto leveling sensor

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY PCM DTCs
•  Retrieve the PCM DTCs using the M-MDS.
•  Is the DTC displayed?
Yes
Repair 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 AUTO LEVELING CONTROL MODULE CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the auto leveling control module 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 AUTO LEVELING CONTROL MODULE POWER SUPPLY VOLTAGE
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Display PID VPWR_IG using the M-MDS.
•  Is the voltage B+?
Yes
Go to the next step.
No
Inspect the ENGINE.IG1 7.5 A fuse (without auto leveling sensor)/METER1 10 A fuse (with auto leveling sensor).
•  If the fuse is blown:
?  Refer to the wiring diagram and verify whether or not there is a common connector between ENGINE.IG1 7.5 A fuse (without auto leveling sensor)/METER1 10 A fuse (with auto leveling sensor) and auto leveling control module terminal N.
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 auto leveling control module terminal N.
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 auto leveling control module DTCs using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Retrieve the auto leveling control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the auto leveling control module, then go to the next step.
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 [AUTO LEVELING CONTROL MODULE].)
No
DTC troubleshooting completed.