Mitsubishi 380. Manual — part 331
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)
13C-44
• Connect oscilloscope to FL sensor signal terminal (5) at
ABS-ECU (A-02)
• Connect oscilloscope to FR sensor signal terminal (10)
at ABS-ECU (A-02)
• Connect oscilloscope to RL sensor signal terminal (17)
at ABS-ECU (A-02)
• Connect oscilloscope to RR sensor signal terminal (19)
at ABS-ECU (A-02)
(7) Recommended Oscilloscope setting:
• Y-axis: 2Volts
• X-axis: 100ms
(8) Turn the ignition switch to the "ON" position.
(9) Turn wheel by hand at approximately 1 revolution per
second (r/sec) or drive on brake dynamometer at 5km/h.
The measurement reading of the active wheel speed sen-
sors on the oscilloscope should correspond to figure 3
below.
NOTE: If the oscilloscope signal shape is correct and wheel
sensor air gap is within specification, but the voltage values are
either higher or lower as shown in the table below, the wheel
speed sensor must be changed.
1.50
1.00
0.50
0.00
U-CH1
0
20
40
60
80
100
ms
V
Test Procedure: Universal Oscilloscope
FIGURE 3
35DB120A
SPECIAL TOOLS
TRACTION CONTROL SYSTEM (TCL)
13C-45
SPECIAL TOOLS
M1136000600024
TOOL
TOOL NUMBER AND NAME SUPERSESSION
APPLICATION
MB991958
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826
MUT-III sub assembly
A: Vehicle communication
interface (V.C.I.)
B: MUT-III USB cable
C: MUT-III main harness A
(Vehicles with CAN
communication system)
D: MUT-III main harness B
(Vehicles without CAN
communication system)
E: MUT-III main harness C
(for Daimler Chrysler
models only)
F: MUT-III measurement
adapter
G: MUT-III trigger harness
MB991824-KIT
NOTE: G: MB991826
MUT-III trigger
harness is not
necessary when
pushing V.C.I. ENTER
key.
Checking diagnostic
trouble codes
CAUTION
For vehicles with CAN
communication, use
MUT-III main harness A
to send simulated
vehicle speed. If you
connect MUT-III main
harness B instead, the
CAN communication
does not function
correctly.
MB991910
MB991826
MB991958
MB991911
MB991914
MB991824
MB991827
MB991825
DO NOT USE
A
B
C
D
E
F
G
DO NOT USE
SPECIAL TOOLS
TRACTION CONTROL SYSTEM (TCL)
13C-46
MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222
Harness set
A: Inspection harness
B: LED harness
C: LED harness adapter
D: Probe
General service tools
Checking the continuity
and measuring the
voltage at the harness
connector
TOOL
TOOL NUMBER AND NAME SUPERSESSION
APPLICATION
MB991223
A
D
C
B
AD
ON-VEHICLE SERVICE
TRACTION CONTROL SYSTEM (TCL)
13C-47
ON-VEHICLE SERVICE
TCL INDICATOR LIGHT CHECK
M1136000900058
1. Check that the "TCL OFF" indicator light and the TCL work
indicator light illuminate for three seconds when the ignition
switch is turned to the "ON" position.
2. Check that the "TCL OFF" indicator light illuminates and
goes off in cycles each time the TCL switch is pushed after
starting the engine.
3. Check that the "TCL OFF" indicator light and the TCL work
indicator light do not illuminate, when driving at 30km/h
(37.5 mph) for more than 2 seconds.
4. If defective, repair it. (Refer to
, TCL diagnosis
−
Symptom Procedures
− Inspection Procedure 1, 2, 3 and 4).
TCL OPERATION CHECK
M1136001100055
Required Special Tools:
• MB991958: Diagnostic Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
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