Pinpoint Test 9: DTC B2296 - Restraint System - Impact sensor Fault
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PINPOINT TEST 9: DTC B2296 - RESTRAINT SYSTEM - IMPACT SENSOR FAULT
Normal Operation
The restraints control module (RCM) checks all of the impact sensor circuits for faults. If the RCM detects one of the following faults on any of the impact sensor circuits, it will store DTC B2296 in memory and send a message to the instrument cluster module to illuminate the air bag warning indicator.
- Fault PIDs that end in OD indicate an on-demand status and are associated with on-demand DTC B2296. Fault PIDs that end in CM indicate continuous monitor status and are associated with continuous DTC B2296.
Possible Causes
- Wiring, terminals or connectors
- Impact sensor
- Incorrect sensor mounting
- RCM
Diagnostic Procedure
WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the safety canopy and cause serious personal injury or death.
CAUTION: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
NOTE: Do not probe any impact sensor. The impact sensor can not be tested using a multi-meter.
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