Mitsubishi Outlander XL. Manual — part 772
⦆
MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
STEP 1. Check the ignition key inserted in the key cylinder
for interference.
Check if there are other ignition keys or anything that interferes
with the communication (things that generate radio waves such
as magnets and an air-cleaning device that has a power plug)
near the ignition key inserted in the key cylinder.
Q:Are there other ignition keys or anything that interferes
with the communication?
YES:
Move away or remove other ignition keys or anything
that interferes with the communication, and go to Step 4.
NO:
Go to Step 2.
STEP 2. Using scan tool MB991958, diagnose the CAN bus
line.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool (MB991958), always turn
the ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool (MB991958).
(1)
Connect scan tool MB991958 to the data link connector.
(2)
Turn the ignition switch to the "ON" position.
(3)
Diagnose the CAN bus line.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the CAN bus line found to be normal?
YES:
Go to Step 3.
NO:
Repair the CAN bus line. (Refer to GROUP 54D,
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the KOS-ECU.
(1)
Erase the DTC.
(2)
Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3)
Check if DTC is set.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the DTC set?
YES:
Go to Step 5.
NO:
The trouble can be an intermittent malfunction (Refer
to GROUP 00 - How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).
STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set to the KOS-ECU.
KEYLESS OPERATION SYSTEM (KOS)
42B-31
DIAGNOSIS
(1)
Erase the DTC.
(2)
Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3)
Check if DTC is set.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the DTC set?
YES:
Go to Step 5.
NO:
The procedure is complete.
STEP 5. Replace the emergency key and recheck the
diagnostic trouble code.
Replace the emergency key for which the DTC is set with a new
one, register the key ID and keyless operation key ID (refer
to P.42B-12), and check whether the DTC is reset.
(1)
Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2)
Check if the DTC is set.
Q:Is the DTC set?
YES:
Replace KOS-ECU and register the ID codes. (Refer
NO:
The procedure is complete.
DTC B2101: IG SW start POS.circuit low
DTC B2102: IG SW start POS.circuit high
M14209100096USA0000010000
⦆
If the DTC B2101 or B2102 is set in KOS-ECU,
always diagnose the CAN bus lines.
⦆
Before replacing the ECU, ensure that the
communication circuit is normal.
42B-32
KEYLESS OPERATION SYSTEM (KOS)
DIAGNOSIS
KOS-ECU Communication Circuit
34
FUSIBLE
LINK
IGNITION
SWITCH (IG1)
ETACS-
ECU
IG1
RELAY
KOS-ECU
POWER
SUPPLY
ZC6008780006
Connector: C-317
KEYLESS OPERATION SYSTEM (KOS)
42B-33
DIAGNOSIS
ZC600875
Connector: C-102
0028
DTC SET CONDITION
If the actual ignition switch status is different from the
ignition switch status information received from
ETACS-ECU via CAN, KOS-ECU sets the diagnostic
trouble code No. B2101 or B2102.
TECHNICAL DESCRIPTION (COMMENT)
If the difference in the ignition switch level shown
below occurs consecutively 10 times with the ignition
switch being the ON position or START position, when
the CAN message (ignition switch position
information)
from
ETACS-ECU,
KOS-ECU
determines that there is a problem.
B2101
⦆
Status of ignition switch: ON position
⦆
Ignition switch position information: OFF
B2102
⦆
Status of ignition switch: OFF position
⦆
Ignition switch position information: ON
TROUBLESHOOTING HINTS
⦆
Malfunction of CAN bus line
⦆
Malfunction of the KOS-ECU
⦆
Malfunction of the ignition switch
⦆
Damaged wiring harness and connectors
⦆
Malfunction of ETACS-ECU
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: Vehicles Communication Interface (V.C.I.)
⦆
MB991827: M.U.T.-III USB Cable
⦆
MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
42B-34
KEYLESS OPERATION SYSTEM (KOS)
DIAGNOSIS
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