DTC U0423:68 [AUTO LEVELING CONTROL MODULE]
id090277017600
|
Description |
Error signal received from instrument cluster |
|---|---|
|
Detection condition
|
• Auto leveling control module received headlight illumination state signal which undefined for 5 s or more with the ignition switched ON (engine off or on).
|
|
Fail-safe
|
• Control of the headlight auto leveling system is continued.
|
|
Possible cause
|
• DTCs are stored in the instrument cluster.
• Instrument cluster malfunction
• Auto leveling control module malfunction
|
|
System wiring diagram
|
Not applicable
|
Diagnostic Procedure
|
Step |
Inspection |
Action |
|
|---|---|---|---|
|
1
|
VERIFY INSTRUMENT CLUSTER DTCs
• Retrieve the instrument cluster DTCs using the M-MDS.
• Is the DTC displayed?
|
Yes
|
Repair the malfunctioning part according to the applicable DTC troubleshooting.
|
|
No
|
Go to the next step.
|
||
|
2
|
VERIFY IF MALFUNCTIONING LOCATION IS INSTRUMENT CLUSTER DEPENDING ON REPEATABILITY
• 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
|
Replace the instrument cluster, then go to the next step.
|
|
No
|
Go to Step 4.
|
||
|
3
|
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• 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
|
Replace the auto leveling control module, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
4
|
VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
|
Yes
|
Repair the malfunctioning part according to the applicable DTC troubleshooting.
|
|
No
|
DTC troubleshooting completed.
|
||