Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Subaru Legacy 2.5iFACTORY OEM SERVICE PROCEDURE
Occupant Detection System DTCS
OCCUPANT DETECTION SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Item | Description |
|---|---|---|
| B1762 | OCCUPANT DETECTION MODULE CALIBRATION NOT INITIALIZED | < Ref. to DTC B1762 OCCUPANT DETECTION MODULE CALIBRATION NOT INITIALIZED , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1763 | OCCUPANT DETECTION MODULE CALIBRATION CHECKSUM | < Ref. to DTC B1763 OCCUPANT DETECTION MODULE CALIBRATION CHECKSUM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1764 | OCCUPANT DETECTION MODULE CALIBRATION UNCOMPLETED | < Ref. to DTC B1764 OCCUPANT DETECTION MODULE CALIBRATION UNCOMPLETED , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1765 | OCCUPANT DETECTION MODULE ROM CHECKSUM | < Ref. to DTC B1765 OCCUPANT DETECTION MODULE ROM CHECKSUM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1766 | OCCUPANT DETECTION MODULE STACK OVERFLOW | < Ref. to DTC B1766 OCCUPANT DETECTION MODULE STACK OVERFLOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1767 | OCCUPANT DETECTION MODULE EEPROM INITIALIZING | < Ref. to DTC B1767 OCCUPANT DETECTION MODULE EEPROM INITIALIZING , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1768 | OCCUPANT DETECTION MODULE EEPROM STATE | < Ref. to DTC B1768 OCCUPANT DETECTION MODULE EEPROM STATE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1769 | OCCUPANT DETECTION SENSOR TEMPERATURE CIRCUIT OPEN | < Ref. to DTC B1769 OCCUPANT DETECTION SENSOR TEMPERATURE CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176A | OCCUPANT DETECTION SENSOR PRESSURE CIRCUIT OPEN | < Ref. to DTC B176A OCCUPANT DETECTION SENSOR PRESSURE CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176B | OCCUPANT DETECTION SENSOR PRESSURE TOO LOW | < Ref. to DTC B176B OCCUPANT DETECTION SENSOR PRESSURE TOO LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176C | OCCUPANT DETECTION SENSOR PRESSURE TOO HIGH | < Ref. to DTC B176C OCCUPANT DETECTION SENSOR PRESSURE TOO HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176D | OCCUPANT DETECTION SENSOR INPUT VOLTAGE LOW AT IG-SW ON | < Ref. to DTC B176D OCCUPANT DETECTION SENSOR INPUT VOLTAGE LOW AT IG-SW ON , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176E | OCCUPANT DETECTION SENSOR GEL RUN OUT | < Ref. to DTC B176E OCCUPANT DETECTION SENSOR GEL RUN OUT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B176F | OCCUPANT DETECTION SENSOR INPUT VOLTAGE LOW | < Ref. to DTC B176F OCCUPANT DETECTION SENSOR INPUT VOLTAGE LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1770 | OCCUPANT DETECTION SENSOR TEMPERATURE TOO HIGH | < Ref. to DTC B1770 OCCUPANT DETECTION SENSOR TEMPERATURE TOO HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1772 | OCCUPANT DETECTION SENSOR TEMPERATURE TOO LOW | < Ref. to DTC B1772 OCCUPANT DETECTION SENSOR TEMPERATURE TOO LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1773 | BELT TENSION SENSOR CIRCUIT OPEN | < Ref. to DTC B1773 BELT TENSION SENSOR CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1774 | BELT TENSION SENSOR OUTPUT TOO HIGH | < Ref. to DTC B1774 BELT TENSION SENSOR OUTPUT TOO HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1775 | BELT TENSION SENSOR OUTPUT TOO LOW | < Ref. to DTC B1775 BELT TENSION SENSOR OUTPUT TOO LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1776 | BELT TENSION SENSOR INPUT VOLTAGE HIGH | < Ref. to DTC B1776 BELT TENSION SENSOR INPUT VOLTAGE HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1777 | BELT TENSION SENSOR INPUT VOLTAGE LOW | < Ref. to DTC B1777 BELT TENSION SENSOR INPUT VOLTAGE LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1778 | BELT TENSION SENSOR CONTROL MODULE | < Ref. to DTC B1778 BELT TENSION SENSOR CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1779 | BUCKLE SWITCH CIRCUIT OPEN | < Ref. to DTC B1779 BUCKLE SWITCH CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B177A | BUCKLE SWITCH CIRCUIT LOW | < Ref. to DTC B177A BUCKLE SWITCH CIRCUIT LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B177B | BUCKLE SWITCH CIRCUIT HIGH | < Ref. to DTC B177B BUCKLE SWITCH CIRCUIT HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B177C | IGNITION POWER SUPPLY HIGH VOLTAGE | < Ref. to DTC B177C IGNITION POWER SUPPLY HIGH VOLTAGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B177D | IGNITION POWER SUPPLY LOW VOLTAGE | < Ref. to DTC B177D IGNITION POWER SUPPLY LOW VOLTAGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B177E | BUCKLE SWITCH RANGE | < Ref. to DTC B177E BUCKLE SWITCH RANGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| B1795 | OCCUPANT DETECTION MODULE INTERNAL CIRCUIT | < Ref. to DTC B1795 OCCUPANT DETECTION MODULE INTERNAL CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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