Mitsubishi Pajero Pinin. Manual — part 352
SWS –
Troubleshooting
54B-10
Code No.21 Short circuit in communication lines
Probable cause
This diagnosis code is displayed when the SWS communication line voltage
reaches the LO level for 0.3 second. The diagnosis code is erased when
voltage in the ETACS-ECU data line reaches the HI level for 0.3 second, or
the ETACS-ECU receives a normal signal from other ECUs or switches. While
this code is displayed, other codes are not displayed.
D
Malfunction of column switch
D
Malfunction of front-ECU
D
Malfunction of power window main switch
<vehicles with front power window>
D
Malfunction of multi center display <vehicles with
multi center display>
D
Malfunction of ETACS-ECU
D
Malfunction of wiring harness or connector
Check the following connectors:
A-38X, C-53, C-63, C-83, E-10
NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wires between column switch and ETACS-ECU,
front-ECU and ETACS-ECU, power window main switch and
ETACS-ECU, multi-center display and ETACS-ECU.
NG
Repair
OK
Is diagnosis code No. 21 no longer output when column
switch connector C-63 is disconnected? (However, code No.
12 is still output.)
Yes
Replace the column switch.
No
Is diagnosis code No. 21 no longer output when front-ECU
connector A-38X is disconnected? (However, code No. 13 is
still output.)
Yes
Replace the front-ECU.
No
Is diagnosis code No. 21 no longer output when power
window main switch connector E-10 is disconnected?
Yes
Replace the power window main switch.
No
Is diagnosis code No. 21 no longer output when multi-center
display connector C-53 is disconnected?
Yes
Replace the multi center display.
No
Replace the ETACS-ECU.
SWS –
Troubleshooting
54B-11
TROUBLE SYMPTOM CHART
Trouble symptom
Inspection
procedure
Reference
page
Communication with the MUT-
II
is impossible.
A-1
54B-14
Buzzer
Light reminder warning function does not work normally.
B-1
54B-15
Multi-center display alarm function does not work normally.
B-2
54B-15
Central door
locking system
Central door locking system does not work normally.
C-1
54B-16
locking system
Some doors do not lock or unlock.
C-2
54B-16
All the doors do not lock or unlock with just the driver’s door lock
key cylinder key operation or driver’s inside lock knob operation.
C-3
54B-17
All the doors do not lock or unlock with just the passenger’s or back
door lock key cylinder key operation.
C-4
54B-17
Forgotten key prevention function does not work.
C-5
54B-17
Power window
Power window do not work at all.
D-1
54B-18
Power window main switch can not operate driver’s window.
D-2
54B-18
Power window sub switch can not operate passenger’s window.
D-3
54B-19
Power window main switch can not operate passenger’s window.
D-4
54B-20
Power window timer function does not work normally.
D-5
54B-20
When the glass is raised, it then lowers automatically.
D-6
54B-21
The glass is not lowered when something is jammed in the
window.
D-7
54B-21
When the glass is fully raised, it then lowers automatically.
D-8
54B-21
Keyless entry
system
Keyless entry system does not operate.
E-1
54B-22
system
The room lamp and hazard warning lamps do not operate through
the answerback function.
E-2
54B-22
The encrypted code cannot be registered.
E-3
54B-22
Windshield wip-
er and washer
Windshield wiper does not operate.
F-1
54B-23
er and washer
Any of the windshield wiper switch positions is defective.
F-2
54B-24
Windshield wiper does not stop at the predetermined park
position.
F-3
54B-24
Windshield intermittent wiper interval cannot be adjusted.
F-4
54B-25
Windshield washer does not work.
F-5
54B-25
SWS –
Troubleshooting
54B-12
Trouble symptom
Reference
page
Inspection
procedure
Rear wiper and
washer
Rear wiper does not work at all.
G-1
54B-26
washer
Rear wiper does not stop at the predetermined park position.
G-2
54B-26
When the shift lever <M/T> or selector lever <A/T> is moved to R
position during the rear wiper operation, the rear wiper does not
operate at the continuous mode.
G-3
54B-27
Rear washer does not work.
G-4
54B-27
Headlamp
washer
Headlamp washer does not work.
H-1
54B-28
Headlamp, tail
lamp
Tail lamp do not illuminate.
I-1
54B-29
lamp
Headlamps (low-beam) do no illuminate.
I-2
54B-29
Headlamps (high-beam) do no illuminate.
I-3
54B-30
Headlamps do not illuminate when the passing switch is operated.
I-4
54B-30
The headlamp auto-cut function does not work normally.
I-5
54B-31
Headlamp dimmer switch auto-reset function does not work
normally.
I-6
54B-31
Daytime running lamp (DRL) function does not work.
I-7
54B-31
Flasher timer
Turn-signal lamp do not flash when the turn-signal lamp switch is
turned on.
J-1
54B-32
Hazard warning lamps do not flash when the hazard warning lamp
switch is turned on.
J-2
54B-33
Front fog lamp
Front fog lamps do not illuminate when the front fog lamp switch
is turned on.
K-1
54B-34
Front fog lamp do not go out when the tail lamps are turned off
while the fog lamps are on.
K-2
54B-34
Rear fog lamp
Rear fog lamp do not illuminate when the rear fog lamp switch is
turned on.
L-1
54B-35
Rear fog lamp do not out when the headlamps and front fog lamps
<vehicles with front fog lamp> are turned off while the fog lamp is
on.
L-2
54B-36
Room lamp
The room lamp does not illuminate.
M-1
54B-36
The doom lamp dimming function does not work normally.
M-2
54B-37
Multi-center dis-
play
The multi-center display does not work normally.
–
GROUP 54A
– Multi-cen-
ter Display.
SWS –
Troubleshooting
54B-13
DEFECTS FOUND BY INPUT SIGNAL CHECK
If the input signal check finds a defect, follow the table below to check.
Trouble symptom
Inspection
procedure
Reference
page
Ignition switch (ACC) signal is not sent to the ETACS-ECU.
N-1
54B-37
Ignition switch (IG1) signal is not sent to the ETACS-ECU.
N-2
54B-38
Key reminder switch signal is not sent to the ETACS-ECU.
N-3
54B-38
Hazard warning lamp switch signal is not sent to the ETACS-ECU.
N-4
54B-39
Front fog lamp switch signal is not sent to the ETACS-ECU.
N-5
54B-39
Rear fog lamp switch signal is not sent to the ETACS-ECU.
N-6
54B-40
Back-up lamp switch signal is not sent to the ETACS-ECU. <M/T>
N-7
54B-40
Inhibitor switch (reverse) signal is not sent to the ETACS-ECU. <A/T>
N-8
54B-41
Rear wiper motor auto-stop signal is not sent to the ETACS-ECU.
N-9
54B-41
Driver’s door switch signal is not sent to the ETACS-ECU.
N-10
54B-42
Door switches signal is not sent to the ETACS-ECU.
Passenger’s door lock key cylinder switch signal is not sent to the ETACS-ECU.
N-11
54B-43
Back door lock key cylinder switch signal is not sent to the ETACS-ECU.
N-12
54B-43
Driver’s door lock actuator switch signal is not sent to the ETACS-ECU.
N-13
54B-44
Column switch
Tail lamp switch signal is not sent to the ETACS-ECU.
N-14
54B-45
Headlamp switch signal is not sent to the ETACS-ECU.
Dimmer switch signal is not sent to the ETACS-ECU.
Passing switch signal is not sent to the ETACS-ECU.
Turn-signal lamp switch signal is not sent to the ETACS-ECU.
Windshield mist wiper switch signal is not sent to the ETACS-ECU.
Windshield intermittent wiper switch signal is not sent to the
ETACS-ECU.
Windshield low-speed wiper switch signal is not sent to the
ETACS-ECU.
Windshield high-speed wiper switch signal is not sent to the
ETACS-ECU.
Windshield intermittent wiper interval adjusting knob signal is not
sent to the ETACS-ECU.
N-15
54B-45
Windshield wiper switch signal is not sent to the ETACS-ECU.
N-14
54B-45
Rear wiper switch signal is not sent to the ETACS-ECU.
Rear washer switch signal is not sent to the ETACS-ECU.
Headlamp washer switch signal is not sent to the ETACS-ECU.
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