Detectable Faults

The SCTM affords limited diagnostic capability including:

• Solenoid shorted to ground.
• Solenoid open.
• Solenoid shorted to battery.
• Internal fault.
• No acceleration within the last 10 timer cycles (one timer cycle - key ON plus 30 minute minimum key OFF).

The seat belts themselves can demonstrate problems such as:

• Both locked all the time.
• Both locked with the ignition OFF, but not timed out.
• Both seat belts function properly when the ignition is ON or the driver door is opened, but not when the driver door is opened.
• Both seat belts function properly when the ignition is ON or the driver door is opened but not when the passenger door is opened.
• Driver seat belt locked, passenger seat belt unlocked.
• Passenger seat belt locked, driver seat belt unlocked.

These problems can be diagnosed using a Digital Volt/Ohm Meter (DVOM). Refer to appropriate SYSTEM WIRING DIAGRAMS article and the BODY DIAGNOSTIC PROCEDURES - EXCEPT COUPE article.