Mitsubishi Evolution X. Manual - part 1158

AC608254 CX

Harness side: D-06

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-25

(4) Measure the voltage between sunroof motor assembly 

connector D-06 (terminal 7) and ground.

• The voltmeter needle does not swing.

NOTE: If the LIN bus lines are short to power supply, the 
voltmeter indicates a constant value.

Q: Is the check result normal?

YES : Go to Step 4.
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 4. Measure the resistance at the LIN bus lines.
Check the LIN bus lines for short to ground.
(1) Disconnect all the ECU connectors which are connected to 

the LIN bus lines.

AC608255 BV

Harness side: C-212

(2) Measure the resistance value between column switch 

connector C-212 (terminal 3) and ground.

•

AC608255 BW

Harness side: D-06

No continuity (1 k

Ω or more)

(3) Measure the resistance value between sunroof motor 

assembly connector D-06 (terminal 7) and ground.

• No continuity (1 kΩ or more)

Q: Is the check result normal?

YES : Go to Step 5.
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.

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-26

STEP 5. Check the column switch.
Disconnect column switch connector C-212, and recheck 
whether DTC U1515 is set.

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) Connect all the relevant ECUs, and disconnect column 

switch connector C-212 only.

(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) to "ON" position 

.

(5) Check whether DTC U1515 is set.

NOTE: If DTC U1515 is not set, DTC U1109 is set because 
the column switch is disconnected. This is normal.

(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC U1515 set?

YES : Reconnect the column switch connector, and go to 

Step 6.

NO :  Replace the column switch.

STEP 6. Check the sunroof motor assembly.
Disconnect sunroof motor assembly connector D-06, and 
recheck whether DTC U1515 is set.
(1) Connect all the relevant ECUs, and disconnect sunroof 

motor assembly connector D-06 only.

(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) to "ON" position 

.

(4) Check whether DTC U1515 is set.

NOTE: If DTC U1515 is not set, DTC U0169 is set because 
the sunroof motor assembly is disconnected. This is nor-
mal.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC U1515 set?

YES : Reconnect the sunroof motor assembly connector, 

and go to Step 7.

NO :  Replace the sunroof motor assembly.

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-27

STEP 7. Check the power window main switch.
Disconnect power window main switch connector E-15, and 
recheck whether DTC U1515 is set.
(1) Connect all the relevant ECUs, and disconnect power 

window main switch connector E-15 only.

(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) to "ON" position 

.

(4) Check whether DTC U1515 is set.

NOTE: If DTC U1515 is not set, DTC U0215 is set because 
the power window main switch is disconnected. This is nor-
mal.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC U1515 set?

YES : Reconnect the power window main switch connector, 

and go to Step 8.

NO :  Replace the power window main switch.

STEP 8. Check the lighting control sensor.
Disconnect lighting control sensor connector D-02, and 
recheck whether DTC U1515 is set.
(1) Connect all the relevant ECUs, and disconnect lighting 

control sensor connector D-02 only.

(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) to "ON" position 

.

(4) Check whether DTC U1515 is set.

NOTE: If DTC U1515 is not set, DTC U0231 is set because 
the power lighting control sensor is disconnected. This is 
normal.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC U1515 set?

YES : Reconnect the lighting control sensor connector, and 

go to Step 9.

NO :  Replace the lighting control sensor.

STEP 9. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) to "ON" position 

.

(3) Check whether DTC U1515 is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Replace the ETACS-ECU.
NO :  The trouble can be an intermittent malfunction (Refer 

to GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

NOTES