Mitsubishi Lancer (4A9 engine). Manual - part 121
HEADLAMP AUTOMATIC LEVELLING SYSTEM
CHASSIS ELECTRICAL
54A-146
DIAGNOSIS CODE PROCEDURES
Code No. B2510 Auto levelling initialization not completed
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnosis code may be set. Prior
to this diagnosis, always diagnose the CAN
bus lines.
• Before replacing the ECU, ensure that the
power supply circuit, the earth circuit and the
communication circuit are normal.
DIAGNOSTIC FUNCTION
When the headlamp automatic levelling system ini-
tialization
*
is not implemented, the headlamp auto-
matic levelling system warning is displayed on the
multi information display and the code No. B2510 is
stored. When the headlamp automatic levelling sys-
tem initialization is completed, the code No. B2510 is
cleared automatically.
NOTE:
*
: When the height sensor related diagnosis
code (B2514 or B2516) or headlamp automatic level-
ling-ECU related diagnosis code (B2511 or B2512) is
set, initialization of the headlamp automatic levelling
system is impossible, therefore perform the trouble-
shooting for the diagnosis code that has been set
previously.
JUDGEMENT CRITERIA
Initialization of the headlamp automatic levelling sys-
tem is not completed.
PROBABLE CAUSES
• Headlamp automatic levelling system initializa-
tion not completed
• Malfunction of the headlamp automatic levelling-
ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the CAN bus line (Refer to GROUP
54C
− Troubleshooting ).
STEP 2. M.U.T.-III diagnosis code
Check if the height sensor related diagnosis code
(B2514 or B2516) or the headlamp automatic level-
ling-ECU related diagnosis code (B2511 or B2512) is
set.
Q: Is the diagnosis code set?
YES :
Perform the troubleshooting of the
diagnosis code that has been set previously.
NO :
Go to Step 3.
STEP 3. Check whether the diagnosis code is
reset.
Initialize the headlamp automatic levelling system
and check the diagnosis code of the headlamp auto-
matic levelling-ECU.
(1) Initialize the headlamp automatic levelling
system. Refer to .
(2) Turn the ignition switch from "LOCK" (OFF)
position to "ON" position.
(3) Check if diagnosis code is set.
Q: Is the diagnosis code set?
YES :
Replace the headlamp automatic levelling-
ECU.
NO :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
U0141
ETACS CAN time-out
U1415
Coding not completed/failed
U1417
Abnormality in coding data
Diagnosis
code No.
Diagnostic item
Reference page