Mitsubishi Evolution X. Manual - part 1154

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-9

DTC U0215: P/W SW (DR) LIN timeout

CAUTION

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

Power Window Main Switch LIN Communication Circuit

ETACS-
ECU

INTERFACE
CIRCUIT

LIN DRIVE
CIRCUIT

CPU

POWER WINDOW
MAIN SWITCH

JOINT
CONNECTOR (2)

AC708950BR

C-129 (BR)

C-102 (B)

Connectors: C-102, C-129

AC708972AY

Connector: C-301

ETACS-ECU

AC608167AF

Connector: E-15

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-10

.

TROUBLE JUDGMENT

The ETACS-ECU receives signal from the power 
window main switch. If signal cannot be received at 
all, DTC U0215 will be set.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

• Connector(s) or wiring harness in the LIN bus 

lines between the power window main switch and 
the ETACS-ECU, the power supply system of the 
power window main switch, or the power window 
main switch itself may be defective.

Past trouble

• If DTC U0215 is stored as a past trouble, carry 

out diagnosis with particular emphasis on wiring 
and connector(s) in the LIN bus line between the 
power window main switch and the ETACS-ECU, 
and the power supply system of the power win-
dow main switch.

.

TROUBLESHOOTING HINTS

• The power window main switch may be defective.

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.

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)

STEP 1. Check ETACS-ECU connector C-301 and power 
window main switch connector E-15 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are ETACS-ECU connector C-301 and power window 

main switch connector E-15 in good condition?
YES : Go to Step 2.
NO :  Repair or replace the damaged component(s).

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-11

STEP 2. Check the wiring harness between ETACS-ECU 
connector C-301 (terminal 1) and power window main 
switch connector E-15 (terminal 7).
NOTE: Also check joint connector C-102 and intermediate con-
nector C-129 for loose, corroded, or damaged terminals, or ter-
minals pushed back in the connector. If joint connector C-102 
or intermediate connector C-129 is damaged, repair or replace 
the connector as described in GROUP 00E, Harness Connec-
tor Inspection 

P.00E-2

.

Q: Is the wiring harness between ETACS-ECU connector 

C-301 (terminal 1) and power window main switch 
connector E-15 (terminal 7) 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. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect the 

Scan Tool (M.U.T.-III) 

P.54B-4

."

(2) Erase the DTC.
(3) Turn the ignition switch to the "ON" position.
(4) Check if the DTC is set.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Replace the power window main switch.
NO :  A poor connection, open circuit or other intermittent 

malfunction is present in the LIN bus lines between 
the power window main switch and the ETACS-ECU 
(Refer to GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-12

DTC U0231: Rain light sensor LIN timeout <Vehicles with auto light function>

CAUTION

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

Lighting Control Sensor LIN Communication Circuit

ETACS-
ECU

INTERFACE
CIRCUIT

LIN DRIVE
CIRCUIT

LIGHTING
CONTROL
SENSOR

AC708972AI

Connector: C-316

Junction block

AC708954 AI

Connector: D-02

.

TROUBLE JUDGMENT

The ETACS-ECU receives signal from the lighting 
control sensor. If signal cannot be received at all, 
DTC U0231 will be set.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

• Connector(s) or wiring harness in the LIN bus 

lines between the lighting control sensor and the 
ETACS-ECU, the power supply system of the 
lighting control sensor, or the lighting control sen-
sor itself may be defective.

Past trouble

• If DTC U0169 is stored as a past trouble, carry 

out diagnosis with particular emphasis on wiring 
and connector(s) in the LIN bus line between the 
lighting control sensor and the ETACS-ECU, and 
the power supply system of the lighting control 
sensor.

.

TROUBLESHOOTING HINTS

• The lighting control sensor may be defective.

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles Communication Interface (V.C.I.)