Mitsubishi Lancer (4A9 engine). Manual — part 155
COLUMN SWITCH
CHASSIS ELECTRICAL
54A-282
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING
M1543101200145
Refer to GROUP 00
− Contents of troubleshooting .
DIAGNOSIS FUNCTION
M1543101300120
HOW TO READ DIAGNOSIS CODE
GROUP 00
− Diagnosis function .
HOW TO ERASE DIAGNOSIS CODE
GROUP 00
− Diagnosis function .
DIAGNOSIS CODE TABLE
M1543100300291
NOTE: The ETACS-ECU sets a diagnosis code.
DIAGNOSIS CODE PROCEDURES
Code No.B2350 Lighting switch malfunction
Code No.B2351 Wiper/washer switch malfunction
TROUBLE JUDGMENT
The ETACS-ECU receives the signals related to
lighting and wiper/washer from the column switch. If
the fail information data is included in the signal from
column switch, the diagnosis code No. B2350 (light-
ing switch) or B2351 (wiper/washer switch) is stored.
COMMENTS ON TROUBLE SYMPTOM
The lighting switch, wiper/washer switch or the
ETACS-ECU may have a problem.
PROBABLE CAUSES
• Malfunction of lighting switch (with built-in col-
umn-ECU)
• Malfunction of wiper/washer switch
• Malfunction of the ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set to the
ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)
position to "ON" position.
(3) Check if the diagnosis code No. B2350 or B2351
is set.
Q: Is the diagnosis code set?
Code No. B2351 is set. :
Go to Step 2.
Code No. B2350 is set. :
Go to Step 3.
No diagnosis code is set. :
The trouble can be an
intermittent malfunction (GROUP 00
− How
to Cope with Intermittent Malfunction ).
MB992006
Extra fine probe
Continuity check and voltage
measurement at harness wire or
connector
Tool
Number
Name
Use
MB992006
Diagnosis code No.
Diagnostic item
Reference page
B2350
Lighting switch malfunction
B2351
Wiper/washer switch malfunction
COLUMN SWITCH
CHASSIS ELECTRICAL
54A-283
STEP 2. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set to the
ETACS-ECU.
(1) Replace the wiper/washer switch.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF)
position to "ON" position.
(4) Check if diagnosis code is set.
Q: Is the diagnosis code set?
YES :
Go to Step 3.
NO :
The diagnosis is complete.
STEP 3. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set to the
ETACS-ECU.
(1) Replace the lighting switch (with built-in column-
ECU).
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF)
position to "ON" position.
(4) Check if diagnosis code is set.
Q: Is the diagnosis code set?
YES :
Replace the ETACS-ECU.
NO :
The diagnosis is complete.
REMOVAL AND INSTALLATION
M1543100700727
LIGHTING SWITCH AND WIPER/WASHER
SWITCH
AC802153
3
5
4
2
1
AD
2.5 ± 0.5 N·m
Removal steps
1.
Ignition key cover (Refer to
GROUP 54A
− Ignition switch ).
2.
Steering column cover lower,
Steering column cover upper (Refer
to GROUP 54A
− Ignition switch ).
3.
Steering column upper cover (Refer
to GROUP 54A
− Ignition switch ).
4.
Wiper/washer switch
5.
Lighting switch (with built-in
column-ECU)
Removal steps (Continued)
COLUMN SWITCH
CHASSIS ELECTRICAL
54A-284
COLUMN SWITCH BODY
CAUTION
• To remove the driver airbag module, refer to GROUP 52B − Service Precautions and Driver’s Air
Bag Module and Clock Spring .
• After the installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor
neutral point. (Refer to GROUP 35C, On-vehicle Service
− Steering Wheel Sensor Calibration ).
<Vehicles with ASC or AFS>
Pre-removal operation
• Check of steering wheel straight-ahead position
• Removal of steering wheel assembly (Refer to GROUP
52B - Driver’s Air Bag Module and Clock Spring .)
• Removal of ignition key cover, steering column lower
cover, steering column upper cover (Refer to GROUP 54A
− Ignition switch )
• Removal of Clock spring (Refer to GROUP 52B - Driver’s
Air Bag Module and Clock Spring ).
Post-installation operation
• Installation of Clock spring (Refer to GROUP 52B -
Driver’s Air Bag Module and Clock Spring ).
• Installation of steering column lower cover, steering col-
umn upper cover (Refer to GROUP 54A
− Ignition switch )
• Installation of steering wheel assembly (Refer to GROUP
52B - Driver’s Air Bag Module and Clock Spring .)
• Check of steering wheel straight-ahead position
AC605523AB
1
2
2.5 ± 0.5 N·m
Wiper/washer switch
Lighting switch
Removal Steps
1.
Column switch body
2.
Steering wheel sensor (Refer to
GROUP 35C - Steering wheel
sensor ). <Vehicles with ASC or
AFS>
COLUMN SWITCH
CHASSIS ELECTRICAL
54A-285
INSPECTION
WIPER/WASHER SWITCH CONTINUITY CHECK
M1543101700225
<VEHICLES WITHOUT LIGHTING CON-
TROL SENSOR>
<VEHICLES WITH LIGHTING CONTROL
SENSOR>
WIPER/WASHER SWITCH CONTINUITY CHECK
M1543101700214
<VEHICLES WITHOUT LIGHTING CON-
TROL SENSOR>
Switch position
Tester
connectio
n
Specified
condition
OFF
−
Open circuit
Windshield
intermittent wiper
interval adjusting
knob
6
− 3
Operating the
adjusting knob
changes the
resistance.
Windshield washer
switch
6
− 7
Continuity exists
(2
Ω or less)
Windshield
wiper switch
Hi
6
− 8
Continuity exists
(2
Ω or less)
Lo
6
− 9
Continuity exists
(2
Ω or less)
Int
6
− 10
Continuity exists
(2
Ω or less)
Mist
6
− 11
Continuity exists
(2
Ω or less)
AC609144
1
6
8
11
10
9
7
5
4
3
2
AE
Switch position
Tester
connectio
n
Specified
condition
OFF
−
Open circuit
Windshield rain
sensitive wiper
function adjusting
knob
6
− 3
Operating the
adjusting knob
changes the
resistance.
Windshield washer
switch
6
− 7
Continuity exists
(2
Ω or less)
Windshield
wiper switch
Hi
6
− 8
Continuity exists
(2
Ω or less)
Lo
6
− 9
Continuity exists
(2
Ω or less)
Auto 6
− 10
Continuity exists
(2
Ω or less)
Mist
6
− 11
Continuity exists
(2
Ω or less)
AC609144
AC612670AG
AC605524
1
6
8
11
10
9
7
5
4
3
2
AC
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст