Mitsubishi Outlander GS45X. Manual - part 1477

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-403

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.

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 

P.52B-28

."

(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 2.
NO :  Repair the CAN bus line (Refer to GROUP 54C, 

Diagnosis 

P.54C-17

).

STEP 2. Using scan tool MB991958, read the audio 
diagnostic trouble code.
Check if the DTC is set to the audio.
Q: Is the DTC set?

YES : Diagnose the radio and CD player. Then go to Step 4.
NO :  Go to Step 3.

STEP 3. Using scan tool MB991958, read diagnostic 
trouble code No. U0184 for other system.
Check if the DTC U0184 is set in ETACS-ECU, SRS-ECU, 
combination meter, A/C-ECU, KOS-ECU or WCM, hands free 
module, satellite radio tuner.
Q: Is the DTC set?

YES : Replace the radio and CD player (Refer to GROUP 

54A, Radio and CD player 

P.54A-423

).

NO :  Go to Step 4.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-404

STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set to the occupant classifica-
tion-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 : Replace the passenger seat cushion frame assembly 

(Refer to GROUP 52A, Front Seat Assembly 

P.52A-17

).

NO :  There is an intermittent malfunction such as poor 

engaged connector(s) or open circuit (Refer to 
GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

DTC U0195: Satellite Radio Tuner CAN Timeout

CAUTION

• If the DTC U0195 is set in the occupant classi-

fication-ECU, always diagnose the CAN main 
bus lines.

• When replacing the ECU, always check that 

the communication circuit is normal.

.

TROUBLE JUDGMENT

If the signal from satellite radio tuner cannot be 
received, the occupant classification-ECU sets the 
DTC U0195.

.

JUDGMENT CRITERIA

Because of the CAN-B bus circuit malfunction, if 
occupant classification-ECU becomes unable to per-
form the normal data transmission, occupant classifi-
cation-ECU determines that an abnormality is 
present.

.

TROUBLESHOOTING HINTS

• The CAN bus may be defective.

• The satellite radio tuner may be defective.

• The occupant classification-ECU may be defec-

tive.

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)

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-405

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line. 

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 

P.52B-28

."

(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 2.
NO :  Repair the CAN bus line (Refer to GROUP 54C, 

Diagnosis 

P.54C-17

).

STEP 2. Using scan tool MB991958, read the satellite radio 
tuner diagnostic trouble code.
Check if DTC is set to the satellite radio tuner.
Q: Is the DTC set?

YES : Diagnose the satellite radio tuner. Then go to Step 4.
NO :  Go to Step 3.

STEP 3. Using scan tool MB991958, read diagnostic 
trouble code No. U0195 for other system.
Check if the DTC U0195 is set in ETACS-ECU, SRS-ECU, 
A/C-ECU, hands free module, CAN box unit, radio and CD 
player, WCM.
Q: Is the DTC set?

YES : Replace the satellite radio tuner (Refer to GROUP 

54A, Satellite Radio Tuner 

P.54A-687

).

NO :  Go to Step 4.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-406

STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set to the occupant classifica-
tion-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 : Replace the passenger seat cushion frame assembly 

(Refer to GROUP 52A, Front Seat Assembly 

P.52A-17

).

NO :  There is an intermittent malfunction such as poor 

engaged connector(s) or open circuit (Refer to 
GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

DTC U0245: CAN box unit CAN timeout

CAUTION

• If DTC U0245 is set in the occupant classifica-

tion-ECU, always diagnose the CAN main bus 
lines.

• When replacing the ECU, always check that 

the communication circuit is normal.

.

DIAGNOSTIC FUNCTION

When the signals from audio visual navigation unit 
cannot be received, the occupant classification sys-
tem sets DTC U0245.

.

JUDGMENT CRITERIA

Because of the CAN-B bus circuit malfunction, if 
audio visual navigation becomes unable to perform 
the normal data transmission, occupant classifica-
tion-ECU determines that an abnormality is present.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The occupant classification-ECU may be defec-

tive.

• The audio visual navigation unit may be defec-

tive.

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)