Mitsubishi L200. Manual - part 833

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-91

Diagnosis Item 6: Diagnose when the M.U.T.-III cannot receive the data sent by RV meter <vehicles 
with RV meter>

CAUTION

When servicing a CAN bus line, earth yourself by touching a metal object such as an unpainted water 
pipe. If you fail to do, a component connected to the CAN bus line may be broken.

Wire colour code 
B : Black     LG : Light green     G : Green     L : Blue     W : White 
Y : Yellow     SB : Sky blue     BR : Brown     O : Orange     GR : Grey 
R : Red     P : Pink     V : Violet     PU : Purple     SI : Silver

A/T-ECU

DIAGNOSIS 
CONNECTOR

ENGINE-ECU

STEERING 
WHEEL 
SENSOR

G AND 
YAW RATE 
SENSOR

A/C-ECU

ABS-ECU

ASTC-ECU

ETACS-ECU

RV METER

NOTE

:VEHICLES WITH ABS
:VEHICLES WITH ASTC
:VEHICLES WITH RV METER
:VEHICLES WITH AUTOMATIC-A/C
:LHD
:RHD
:A/T

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-92

FUNCTION
The diagnostic result demonstrates that "the M.U.T.-
III cannot receive the sent data from the RV meter 
<vehicles with RV meter>" when the M.U.T.-III 
checks the periodically sent data from each ECU.

TROUBLE JUDGEMENT CONDITIONS
M.U.T.-III judges the trouble when the periodically 
sent data from RV meter <vehicles with RV meter> 
cannot be received.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-93

PROBABLE CAUSES

• Damaged harness wires and connectors

• Power supply circuit malfunction of the RV meter

• Malfunction of the RV meter <vehicles with RV 

meter>

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-94

DIAGNOSIS PROCEDURE

STEP 1. Connector check: C-119 joint connector 
(CAN1) and C-171 RV meter connector <vehicles 
with RV meter>

AC903853

BM

Connector: C-119 <LHD>

C-119 (GR)

AC903868

CM

Connector: C-119 <RHD>

C-119 (GR)

AC903856

Connector: C-171 <LHD>

AY

Harness side

C-171 (GR)

AC903868

Connector: C-171 <RHD>

BQ

Harness side

C-171 (GR)

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54C-7

.

AC209350

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AC209350

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AC

Short pin

When checking the joint connector, ensure that its 
wiring harness side and its short pins are not dam-
aged.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the defective connector. Replace the 
joint connector as necessary.