DTC B1868

• Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure.

Step	Inspection	Action
1	VERIFY IF OTHER DTCs ARE DISPLAYED • Clear the DTC from the SAS control module memory using the M-MDS. (See CLEARING DTC.) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.) • Is DTC U0073 or U0155 displayed?	Yes	Perform a separate inspection of the applicable DTCs. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 1.5))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop, MZR 1.5))].)
No	Go to the next step.
2	INSPECT INSTRUMENT CLUSTER • Verify that the instrument cluster is installed correctly. • Is the Instrument cluster installed correctly?	Yes	Go to the next step.
No	Install the instrument cluster correctly. Then go to the next step.
3	INSPECT INSTRUMENT CLUSTER • Perform the following active command mode inspection for the instrument cluster using the M-MDS. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) ― WL+IL (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].) • Does the air bag system warning light illuminate?	Yes	Go to the next step.
No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
4	PERFORM SAS CONTROL MODULE DTC INSPECTION • Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC.) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.) • Are the same DTCs present?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No	DTC troubleshooting completed.

Step

Inspection

Action

VERIFY IF OTHER DTCs ARE DISPLAYED

• Clear the DTC from the SAS control module memory using the M-MDS. (See CLEARING DTC.)

• Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.)

• Is DTC U0073 or U0155 displayed?

Yes

Perform a separate inspection of the applicable DTCs.

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 1.5))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop, MZR 1.5))].)

Go to the next step.

INSPECT INSTRUMENT CLUSTER

• Verify that the instrument cluster is installed correctly.

• Is the Instrument cluster installed correctly?

Yes

Go to the next step.

Install the instrument cluster correctly.

Then go to the next step.

INSPECT INSTRUMENT CLUSTER

• Perform the following active command mode inspection for the instrument cluster using the M-MDS. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

― WL+IL

(See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].)

• Does the air bag system warning light illuminate?

Yes

Go to the next step.

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

PERFORM SAS CONTROL MODULE DTC INSPECTION

• Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC.)

• Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.)

• Are the same DTCs present?

Yes

Replace the SAS control module.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)

DTC troubleshooting completed.