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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1014 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test G: DTC B2294 - Restraint System - Curtain Fault >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The restraints control module (RCM) monitors all safety canopy module circuits for faults. The RCM will set a DTC if a short to battery or short to ground fault is detected. The RCM will also set a DTC if the loop resistance is less than 0.9 ohm or greater than 5.0 ohms. The normal expected resistance range is 1.31 to 4.29 ohms. If a loop resistance is between 0.9 and 1.31 or between 4.29 and 5.0 ohms, a DTC may or may not set, yet there exists a strong potential for an intermittent fault. If the RCM detects a fault on any of the safety canopy module circuits, it will store DTC B2294 in memory and send a message to the instrument cluster (IC) module to illuminate the air bag warning indicator.

Fault PIDsa Description Fault Trigger Condition
2294_24_OD and 2294_24_CM A - B or A - C Pillar Curtain Circuit Resistance Low, Passenger Side When the restraints control module (RCM) measures less than 0.9 ohm between the passenger safety canopy circuits, a fault will be indicated.
2294_25_OD and 2294_25_CM A - B or A - C Pillar Curtain Circuit Open, Passenger Side When the RCM measures greater than 5.0 ohms between the passenger safety canopy circuits, a fault will be indicated.
2294_26_OD and 2294_26_CM A - B or A - C Pillar Curtain Circuit Short to Ground, Passenger Side When the RCM senses a short to ground on either of the passenger safety canopy circuits, a fault will be indicated.
2294_27_OD and 2294_27_CM A - B or A - C Pillar Curtain Circuit Short to Battery, Passenger Side When the RCM senses a short to voltage on either of the passenger safety canopy circuits, a fault will be indicated.
2294_28_OD and 2294_28_CM A - B or A - C Pillar Curtain Circuit Resistance Low, Driver Side When the RCM measures less than 0.9 ohm between the driver safety canopy circuits, a fault will be indicated.
2294_29_OD and 2294_29_CM A - B or A - C Pillar Curtain Circuit Open, Driver Side When the RCM measures greater than 5.0 ohms between the driver safety canopy circuits, a fault will be indicated.
2294_30_OD and 2294_30_CM A - B or A - C Pillar Curtain Circuit Short to Ground, Driver Side When the RCM senses a short to ground on either of the driver safety canopy circuits, a fault will be indicated.
2294_31_OD and 2294_31_CM A - B or A - C Pillar Curtain Circuit Short to Battery, Driver Side When the RCM senses a short to voltage on either of the driver safety canopy circuits, a fault will be indicated.

a Fault PIDs that end in OD indicate an on-demand status and are associated with on-demand DTC B2294. Fault PIDs that end in CM indicate continuous memory status and are associated with continuous DTC B2294.

This pinpoint test is intended to diagnose the following:

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