Mitsubishi Outlander XL. Manual - part 792

KOS-ECU  Power Supply Circuit

IG1
RELAY

POWER
SUPPLY

KOS-ECU

ETACS-ECU

ZC600875

Connector: C-102

0028

ZC6008780006

Connector: C-317

KEYLESS OPERATION SYSTEM (KOS)

42B-111

DIAGNOSIS

TROUBLESHOOTING HINTS

｠

Damaged wiring harness and connectors

｠

Malfunction of KOS-ECU

STEP 1. Check KOS-ECU connector C-102 and ETACS-ECU
connector C-317 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.

Q:Is  the  KOS-ECU  connector  C-102  and  ETACS-ECU

connector C-317 in good condition?

YES:

 Go to Step 2.

NO:

 Repair the defective connector.

STEP 2. Check the wiring harness between the KOS-ECU
connector C-102 (terminal No. 38, 39) and the ETACS-ECU
connector C-317 (terminal No. 10, 5).

｠

Check the power supply and ground wires for open circuit.

Q:Is the wiring harness between KOS-ECU connector C-102

(terminal  No.  38,  39)  and  the  ETACS-ECU  connector

C-317 (terminal No. 10, 5) in good condition?

YES:

 Go to Step 3.

NO:

 The wiring harness may be damaged or the connector

(s) may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the wiring
harness as necessary.

STEP 3. Retest the system

Q:Does  the  abnormality  in  KOS-ECU  power  supply  and

ground circuits in good condition?

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 P.00-15).

NO:

 Replace KOS-ECU and register the ID codes. (Refer

to P.42B-12.)

Inspection Procedure 3: Keyless operation warning display does not disappear.

M14209100071USA0000010000

Before replacing the ECU, ensure that the power
supply  circuit,  the  ground  circuit  and  the
communication circuit are normal.

TROUBLESHOOTING HINTS

｠

Malfunction of CAN bus line

｠

Malfunction of combination meter

｠

Damaged wiring harness and connectors

｠

Malfunction of the KOS-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

42B-112

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS

｠

MB991910:  M.U.T.-III  Main  Harness  A  (Vehicles  with
CAN communication system)

STEP 1. Using scan tool MB991958, read the diagnostic
trouble code.
Check the DTC B2415 is set to the KOS-ECU.

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 scan
too (M.U.T.-III) P.42B-10."

(2)

Turn the ignition switch to the "ON" position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC B2415 is set?

YES:

 Refer to P.42B-75.

NO:

 Go to Step 2.

STEP 2. Using scan tool MB991958, read the combination
meter diagnostic trouble code.
Check if DTC is set in the combination meter.

Q:Is the DTC set?

YES:

 Troubleshoot the combination meter. (Refer to GROUP

54Ab, Diagnosis .)

NO:

 Go to Step 3.

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

Q:Is the DTC set?

YES:

 Refer to P.42B-18.

NO:

 Go to Step 4.

STEP 4. Check of the troubles.
Check  that  the  keyless  operation  warning  display  turns  OFF
unless the flashing or illumination conditions are met.

Q:Is the DTC set?

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 P.00-15).

NO:

 Replace KOS-ECU and register the ID codes. (Refer

to P.42B-12.)

KEYLESS OPERATION SYSTEM (KOS)

42B-113

DIAGNOSIS

Inspection Procedure 4: IG knob will not turn (keyless operation is not recognized).

M14209100087USA0000010000

Before  replacing  the  ECU,  ensure  that  the
communication circuit is normal.

42B-114

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS