Mitsubishi Outlander XL. Manual - part 793

KOS-ECU System Circuit

KOS-ECU

KEY
REMINDER
SWITCH

WHEN
REMOVING
KEY: ON

(PUSH SWITCH)

ETACS-ECU

FUSIBLE
LINK

36

RELAY
BOX

IGNITION
KEY RING
ANTENNA

KEYLESS
OPERATION
KEY

KEY ID

TRANSPONDER

RECEIVER
ANTENNA MODULE

KEYLESS OPERATION SYSTEM (KOS)

42B-115

DIAGNOSIS

ZC600875

C-102

C-30

0029

Connectors: C-30, C-102

ZC6008780017

Connector: C-315

TROUBLESHOOTING HINTS

｠

Configration function setting

｠

Damaged wiring harness and connectors

｠

Malfunctions of the steering lock push switch

｠

Malfunction of the keyless operation key

｠

Malfunction of the receiver antenna module

｠

Malfunction of KOS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB992006: Extra fine probe

｠

MB991223: Harness set

｠

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)

STEP 1. Check the power supply circuit and the ground
circuit to KOS-ECU.
Refer  to  Inspection  procedure  2  "Abnormality  in  KOS-ECU
power supply and ground circuits" P.42B-110.

Q:Is the power supply circuit and the ground circuit to KOS-

ECU in good condition?

YES:

 Go to Step 2.

NO:

 Repair the power supply circuit and the ground

circuit to KOS-ECU.

42B-116

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS

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. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.42B-10."

(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,

Diagnosis P.54D-17).

STEP 3. Using scan tool MB991958, read the KOS-ECU
diagnostic trouble code.
Check if DTC is set to the KOS-ECU.

Q:Is the DTC set?

YES:

 Troubleshoot the KOS. (Refer to P.42B-18.)

NO:

 Go to Step 4.

STEP 4. Using scan tool MB991958, Check the configuration
function.
Use  the  ETACS-ECU  configuration  function  to  check  that  the
"KOS feature" is set to "Both enable" or "ENG strt enable".

Q:Is it set to "Both enable" or "ENG strt enable"?

YES:

 Go to Step 5.

NO:

 Use the ETACS-ECU configuration function to set the

"KOS feature" to "Both enable" or "ENG strt enable".
(Refer to P.42B-157).

STEP 5. Check the ignition push switch. Measure the
resistance at KOS-ECU connector C-102.

(1)

Disconnect the KOS-ECU connector C-102.

(2)

With  the  IG  knob  push  switch  pressed,  measure  the
resistance at the harness-side connector.

KEYLESS OPERATION SYSTEM (KOS)

42B-117

DIAGNOSIS

ZC501041052

Harness side: C-102

(3)

Resistance  between  the  KOS-ECU  connector  C-102
terminal No. 8 and 34.

OK: The resistance should be 2 Ω or less.

Q:Is the measured resistance 2 Ω or less?

YES:

 Go to Step 6.

NO:

 Check the KOS-ECU C-102 connector, the key reminder

switch connector C-211, the ETACS-ECU connector C-317,
and the wiring harness between the KOS-ECU connector
C-102 (terminal No. 8, 34) and the C-211 key reminder
switch connector (terminal No. 4, 10), and between the key
reminder switch connector C-211 (terminal No. 1) and the
ETACS-ECU connector C-317 (terminal No. 10), and repair
them if necessary. If they are normal, replace the key
reminder switch.

STEP 6. Check the key reminder switch. Measure the
resistance at ETACS-ECU connector C-315.

(1)

Disconnect the ETACS-ECU connector C-315.

(2)

Measure the resistance at the harness-side connector with
the ignition key removed from the ignition key cylinder.

ZC5010410053

Harness side: C-315

(3)

Resistance  between  the  ETACS-ECU  connector  C-315
terminal No. 13 and the ground.

OK: The resistance should be 2 Ω or less.

Q:Is the measured resistance 2 Ω or less?

YES:

 Go to Step 7.

NO:

 Check the key reminder switch connector C-211, the

ETACS-ECU connector C-315, the wiring harness between the
key reminder switch connector C-211 (terminal No. 3) and
the ETACS-ECU connector C-315 (terminal No. 13), and
between the key reminder switch connector C-211 (terminal
No. 2) and the ground. If they are normal, replace the key
reminder switch.

STEP 7. Check with another registered keyless operation
key.

Q:Does  the  IG  knob  turn?  (Is  the  keyless  operation  key

recognised?)

YES:

 Replace the keyless operation key with which the IG

knob does not turn (no recognition) and register the ID
codes. (Refer to P.42B-12.)

NO:

 Go to Step 8.

STEP 8. Check KOS-ECU connector C-102 and receiver
antenna module connector C-30 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.

Q:Is  KOS-ECU  connector  C-102  and  receiver  antenna

module connector C-30 in good condition?

YES:

 Go to Step 9.

NO:

 Repair the defective connector.

42B-118

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS