Mitsubishi Outlander XL. Manual — part 932

STEP 12. Recheck for diagnostic trouble code.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

Check again if the DTC is set.

(1)

Erase the DTC.

(2)

Turn the ignition switch to the "ON" position.

(3)

Check if the DTC is set.

(4)

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

Q:Is DTC B210D set?

YES:

Return to Step 1.

NO:

The procedure is complete.

DTC B212C: Open Circuit to IG1 Power Supply (Fuse No.12 Circuit)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-259

SRS AIR BAG DIAGNOSIS

DTC B212D: Open Circuit to IG1 Power Supply (Fuse No.18 Circuit)

M15204000967USA0000010000

ETACS-
ECU

FUSIBLE
LINK

34

IGNITION
SWITCH (IG1)

IG1
RELAY

SRS-ECU

POWER
SUPPLY

IG1 Power Supply Circuit

ZC600876

Connector: C-27

C-27 (Y)

0025

ZC6008780023

Connectors: C-309, C-313, C-317

C-309 (B)

C-316

C-317

52B-260

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS

If DTC B212C (Fuse No.12) or B212D (Fuse No.18)
is set in the SRS-ECU, always diagnose the CAN
main bus lines.

CIRCUIT OPERATION

｠

The SRS-ECU is powered from the ignition switch
(IG1).

｠

The SRS-ECU power is supplied from two circuits.
Even if one circuit is shut off, the air bag can inflate.

DTC SET CONDITIONS
This DTC is set if the voltage between the IG1
terminals (fuse No.12 circuit or fuse No.18 circuit) and

ground is lower than a predetermined value for a
continuous period of five second or more.

TROUBLESHOOTING HINTS

｠

Open circuit to power supply circuit

｠

Damaged wiring harnesses or connectors

｠

Malfunction of the SRS-ECU

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: Vehicle 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. 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 P.52B-31."

(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 54D,

Diagnosis P.54D-17).

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-261

SRS AIR BAG DIAGNOSIS

STEP 2. Using scan tool MB991958, diagnose the ETACS.

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 P.52B-31."

(2)

Turn the ignition switch to the "ON" position.

(3)

Check if the DTC is set.

(4)

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

Q:Is the DTC set?

YES:

Diagnose the ETACS, (Refer to GROUP 54Ad, ETACS,

Diagnosis P.54Ad-8.

NO:

Go to Step 3).

STEP 3. Recheck for diagnostic trouble code.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

Check again if the DTC is set.

(1)

Erase the DTC.

(2)

Turn the ignition switch to "ON" position.

(3)

Check if the DTC is set.

(4)

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

Q:Is the DTC set?

YES:

Go to Step 4.

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).

STEP 4. Check the harness for open circuit between SRS-
ECU connector C-27 (terminal No.61 and 62) and the
ETACS-ECU connector C-313 (terminal No.4 and 2).

(1)

Disconnect SRS-ECU connector C-27.

52B-262

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS