Mitsubishi Outlander (2013+). Manual - part 726
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54C-40
disconnected.
(3) Resistance between ETACS-ECU connector
terminal No.17 (CAN_H) and body earth by
backprobing
OK: 1 k
Ω or more
(4) Resistance between ETACS-ECU connector
terminal No.16 (CAN_L) and body earth by
backprobing
OK: 1 k
Ω or more
Q: Is the check result normal?
YES <Resistance value is 1 k
Ω or more in both
CAN_H and CAN_L> :
Go to Step 3.
NO <Resistance value is less than 1 k
Ω in either
CAN_H or CAN_L> :
Perform diagnosis item 7
"Diagnose shorts in the earth to
CAN-C-Mid". Refer to
STEP 3. Check the CAN-C-Mid for short to each
other. Resistance measurement at ETACS-ECU
connector by backprobing.
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
(1) Turn the ignition switch to the LOCK (OFF)
position.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
.
(2) Ensure that the negative battery terminal is
disconnected.
(3) Resistance between ETACS-ECU connector
terminal Nos.16 and 17 by backprobing
OK: 60
± 10 Ω
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
NO <Resistance value is less than 60
± 10 Ω> :
Perform diagnosis Item 8 "Diagnose shorts
between CAN_H and L lines (CAN-C-Mid)".
Refer to
.
NO <Resistance value is 1 k
Ω or more> :
Check
the wires between ETACS-ECU connector
and joint connector (CAN-LO) for open
circuit, and check the terminal resistors in
the combination meter and the ETACS-ECU
for open circuit. Then repair or replace if
necessary.
Diagnosis Item 6: Diagnose shorts in the power supply to CAN-C-Mid.
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 com-
ponent connected to the CAN bus line may be
broken.
• When the ETACS-ECU of vehicles without
KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
GROUP 54A, Immobilizer System
− How to
Register Key ID .)
TROUBLE JUDGEMENT CONDITIONS
The M.U.T.-III judges the trouble when it is impossi-
ble to receive the periodically sent data and the volt-
age of CAN_H or CAN_L line is more than 4.0 V.
TROUBLESHOOTING HINTS
• Malfunction of the wiring harness
• Malfunction of the connector
• Malfunction of the ETACS-ECU
• Malfunction of the A/C-ECU
• Malfunction of the KOS-ECU <Vehicles with
KOS>
• Malfunction of the OSS-ECU <Vehicles with
OSS>
• Malfunction of the CAN box unit <vehicles with
MMCS>
• Malfunction of the radio and CD player <vehicles
with radio and CD player>
• Malfunction of the corner sensor/back sen-
sor-ECU <vehicles with reversing sensor sys-
tem>
• Malfunction of the electric tailgate control unit
<vehicles with electric tailgate>
• Malfunction of the combination meter