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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1151 (Safety Belt System) >> Description And Operation >> Seatbelt Systems - System Operation and Component Description >> System Operation >> Belt-Minder®

System Operation: Belt-Minder®

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

For Belt-Minder® operation, Refer to: Warning Chimes - System Operation and Component Description .

To diagnose the Belt-Minder® feature, Refer to: Instrumentation, Message Center and Warning Chimes .

To activate or deactivate the Belt-Minder® feature, Refer to: Seatbelt Minder Deactivating/Activating .

Seatbelt Tension Reducer 

With the ignition on, power is provided to the seatbelt tension reducer solenoids (integral to the seatbelt retractor). When the driver or front passenger seatbelt buckle is buckled, the seatbelt tension reducer solenoid circuit is grounded and enabled. When the seatbelt buckle is unbuckled, ground is removed, disabling the seatbelt tension reducer solenoid.

Inflatable Seatbelt System (if equipped) 

The inflatable seatbelt system uses a pyrotechnic device to release an inert gas under pressure from an inflator to fill and expand the inflatable shoulder belt. The pyrotechnic device (seatbelt inflator) deploys upon receipt of current from the RCM. The RCM monitors the readiness of the seatbelt inflator and uses this information, as well as other information provided by the restraints system, to determine if inflatable seatbelt deployment is appropriate.

To diagnose any seatbelt inflator Diagnostic Trouble Codes (DTCs): Refer to:Airbag Supplemental Restraint System (SRS) .

For any concerns regarding seatbelt buckle or retractor function: Refer to: Seatbelt Systems .

When replacing seatbelt buckles or retractor assemblies use only the replacement parts specified in the Ford parts catalog or equivalent.