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11. Test for less then 1 ohm between the following low control circuit terminals. I/P Module - Stage 1 terminal A2 and SDM terminal 11 (with 10 series) I/P Module - Stage 1 terminal B and SDM terminal 11 (without 10 series) I/P Module - Stage 2 terminal B2 and SDM terminal 7 Left Front Roof Rail Module terminal A and SDM terminal 12 (regular cab) Left Front Roof Rail Module terminal 2 and SDM terminal 12 (extended cab) Right Front Roof Rail Module terminal A and SDM terminal 15 (regular cab) Right Front Roof Rail Module terminal 2 and SDM terminal 15 (extended cab) Seat Belt Pretensioner - Left terminal A and SDM terminal 17 Seat Belt Pretensioner - Right terminal A and SDM terminal 18 If not within the specified range, test the circuit for an open/high resistance. 12. If all circuits test normal, replace the SDM. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. SIR/SRS Wiring Repairs Inflatable Restraint Instrument Panel Module Replacement Inflatable Restraint Steering Wheel Module Replacement Inflatable Restraint Steering Wheel Module Coil Replacement Inflatable Restraint Side Impact Sensor Replacement (Extended Cab) or Inflatable Inflatable Restraint Roof Side Rail Module Replacement (Crew Cab) or Inflatable Seat Belt Retractor Pretensioner Replacement - Front (Regular Cab) or Seat Belt Control Module References for SDM replacement, programming, and setup DTC B0052 OR B0053 Diagnostic Instructions
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors DTC B0052 00 Deployment Commanded DTC B0053 00 Deployment Commanded With Loop DTCs Present Circuit/System Description The inflatable restraint sensing and diagnostic module (SDM) contains a sensing device that Conditions for Running the DTC Ignition voltage is between 9-16 volts. Conditions for Setting the DTC B0052 The SDM detects a frontal impact of sufficient force to warrant deployment of the frontal The SDM detects a side impact of sufficient force to warrant deployment of a side impact The SDM has deployed the seat belt pretensioner. B0053 SDM commands inflators deployment with loop faults present.
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Action Taken When the DTC Sets The SDM will only set DTC B0052 or the SDM sets DTC B0053 along with DTC B0052. The SDM commands the AIR BAG indicator ON. The SDM records crash data. Conditions for Clearing the DTC After an air bag deployment or 3 separate pretensioner deployments the DTC becomes latched Reference Information Schematic Reference SIR Schematics Connector End View Reference Component Connector End Views Description and Operation SIR System Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification IMPORTANT: The seat belt pretensioners may deploy for impacts that are
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
1. Ignition OFF, verify no signs of inflator module or pretensioner deployment exist. If any signs of deployment exist, refer to Repairs and Inspections Required After a 2. Ignition ON, verify DTC B0052 or DTC B0053 is not set. If the DTC is set, clear DTCs. If DTC resets, replace the SDM. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Refer to Control Module References for SDM replacement, setup, and programming DTC B0071 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors DTC B0071 03 Passenger Seat Belt Tension Sensor Circuit Voltage Below Threshold DTC B0071 07 Passenger Seat Belt Tension Sensor Circuit Voltage Above Threshold Diagnostic Fault Information deployment events, or one frontal or side deployment event. When DTC B0053 is accompanied by additional DTCs, other
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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