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.
2008 Ford Mustang GT, 2D Convertible, AutomaticFACTORY OEM SERVICE PROCEDURE
Supplemental Restraint System
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DTC LIST
| DTC | Description | Perform Test |
|---|---|---|
| - | The Air Bag Warning Indicator is Illuminated Continuously | Go to Pinpoint Test A . |
| B1231 | Event Threshold Exceeded | INSTALL a new RCM and impact sensors. |
| B1317 | Battery Voltage High | Go to Pinpoint Test Y . |
| B1318 | Battery Voltage Low | Go to Pinpoint Test Y . |
| B1342 | ECU Is Faulted | INSTALL a new RCM. REFER to Restraints Control Module (RCM) . |
| B1869 | Lamp Air Bag Warning Indicator Circuit Open | Go to Pinpoint Test B . |
| B1870 | Lamp Air Bag Warning Indicator Circuit Short To Battery | Go to Pinpoint Test C . |
| B1884 | PAD Warning Lamp Circuit Failure | Go to Pinpoint Test D . |
| B1890 | PAD Warning Lamp Circuit Short to Battery | Go to Pinpoint Test E . |
| B1891 | Air Bag Tone Warning Indicator Short to Battery | Go to Pinpoint Test F . |
| B1892 | Air Bag Tone Warning Indicator Circuit Failure | Go to Pinpoint Test G . |
| B1921 | Air Bag Diagnostic Monitor Ground Circuit Open | Go to Pinpoint Test H . |
| B2290 | Occupant Classification System Fault | Go to Pinpoint Test I . |
| B2292 | Restraint System - Seatbelt Pretensioner Fault (Driver Pretensioner Circuit Failure) | Go to Pinpoint Test J . |
| B2292 | Restraint System - Seatbelt Pretensioner Fault (Passenger Pretensioner Circuit Failure) | Go to Pinpoint Test J . |
| B2293 | Restraint System - Airbag Fault (Driver Front Air Bag Circuit Failure) | Go to Pinpoint Test K . |
| B2293 | Restraint System - Airbag Fault (Passenger Front Air Bag Circuit Failure) | Go to Pinpoint Test K . |
| B2295 | Restraint System - Side Airbag Fault (Driver Seat Side Air Bag Circuit Failure) | Go to Pinpoint Test L . |
| B2295 | Restraint System - Side Airbag Fault (Passenger Seat Side Air Bag Circuit Failure) | Go to Pinpoint Test L . |
| B2296 | Restraint System - Impact Sensor Fault (Front Impact Severity Sensor Circuit Failure) | Go to Pinpoint Test M . |
| B2296 | Restraint System - Impact Sensor Fault (Driver Side Impact Sensor Circuit Failure) | Go to Pinpoint Test M . |
| B2296 | Restraint System - Impact Sensor Fault (Passenger Side Impact Sensor Circuit Failure) | Go to Pinpoint Test M . |
| B2434 | Drivers Seat Belt Buckle Switch Circuit Short to Ground | Go to Pinpoint Test N . |
| B2435 | Driver Seat Belt Buckle Switch Resistance out of Range | Go to Pinpoint Test O . |
| B2438 | Passengers Seat Belt Buckle Switch Circuit Short to Ground | Go to Pinpoint Test P . |
| B2439 | Passengers Seat Belt Buckle Switch Resistance out of Range | Go to Pinpoint Test Q . |
| B2477 | Module Configuration Failure | INSTALL a new RCM. REFER to Restraints Control Module (RCM) . |
| B2691 | Seat Belt Buckle Switch Circuit Fault, Front Driver's side | Go to Pinpoint Test R . |
| B2692 | Front Passenger's Seat Belt Buckle Switch Circuit Fault | Go to Pinpoint Test S . |
| B2909 | Belt Tension Sensor Fault | Go to Pinpoint Test T . |
| C1414 | Incorrect Module Design Level | Go to Pinpoint Test U . |
| C1947 | Front Driver's Seat Track Position Switch Circuit Short to Ground | Go to Pinpoint Test V . |
| C1948 | Front Driver's Seat Track Position Switch Circuit Resistance Out of Range | Go to Pinpoint Test W . |
| C1981 | Front Driver's Seat Track Position Switch Circuit Fault | Go to Pinpoint Test X . |
| - | No Communication with the Restraints Control Module (RCM) | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the no communication concern. |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.