Front Seats — 2016 workshop reference 1012

H4 CHECK THE DSM (DRIVER FRONT SEAT MODULE) VOLTAGE SUPPLY

Measure and record the voltage at the battery.

REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect: Driver Side Airbag In-line C345. Disconnect: DSM C341A and C341B. Ignition ON. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341A-1		Ground

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341B-1		Ground

Are the voltages greater than 11 volts?

Yes	GO to H5
No	REPAIR the circuit. CLEAR the DTC. GO to H7

H5 CHECK THE DSM (DRIVER FRONT SEAT MODULE) GROUND CIRCUIT

Ignition OFF. Disconnect: Negative Battery Cable. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341A-2		Ground

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341B-24		Ground

Are the resistances less than 3 ohms?

Yes	CONNECT the negative battery cable. GO to H6
No	REPAIR the circuit. CONNECT the negative battery cable. GO to H7

H6 CHECK THE DSM (DRIVER FRONT SEAT MODULE) OPERATION

Ignition OFF. Disconnect and inspect all of the DSM connectors. Repair:

corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins as necessary pushed-out pins - install new pins as necessary

Reconnect the DSM connectors. Make sure they seat and latch correctly.

NOTE: Do not reconnect Driver Side Airbag In-line C345 at this time. Reconnect all previously disconnected connectors. Ignition ON. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DSM. REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation). GO to H7
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. GO to H7

Source reference 1012

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.