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LR Side Impact Sensor Internal Electronic Failure DTC B0087 3A LR Side Impact Sensor Incorrect Component Installed DTC B0087 71 LR Side Impact Sensor Invalid Serial Data Received DTC B0088 00 RR Side Impact Sensor No Additional Information DTC B0088 0F RR Side Impact Sensor Erratic DTC B0088 39 RR Side Impact Sensor Internal Electronic Failure DTC B0088 3A RR Side Impact Sensor Incorrect Component Installed DTC B0088 71 RR Side Impact Sensor Invalid Serial Data Received Diagnostic Fault Information Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance Front End Sensor 1 High B0083 00 B0083 0F B0083 00 B0083 00 B0083 0F Front End Sensor 1 Low B0083 00 B0083 0F B0083 00 B0083 00 B0083 0F Front End Sensor 2 High B0084 00 B0084 0F B0084 00 B0084 00 B0084 0F Front End Sensor 2 Low B0084 00 B0084 0F B0084 00 B0084 00 B0084 0F
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Circuit/System Description The inflatable restraint front end sensor utilizes a unidirectional 2-wire circuit. The front end Conditions for Running the DTC Ignition voltage is between 9-16 volts. Conditions for Setting the DTC Any of the following conditions exist for 2.5 seconds: B0083 00, B0084 00, B0085 00, B0086 00, B0087 00, B0088 00 Circuit B0085 00 B0085 0F B0085 00 B0085 00 B0085 0F Left Front Side Impact Low B0085 00 B0085 0F B0085 00 B0085 00 B0085 0F Right Front Side Impact B0086 00 B0086 0F B0086 00 B0086 00 B0086 0F Right Front Side Impact Low B0086 00 B0086 0F B0086 00 B0086 00 B0086 0F Left Rear Side Impact Sensor B0087 00 B0087 0F B0087 00 B0087 00 B0087 0F Left Rear Side Impact Low B0087 00 B0087 0F B0087 00 B0087 00 B0087 0F Right Rear Side Impact B0088 00 B0088 0F B0088 00 B0088 00 B0088 0F Right Rear Side Impact Low B0088 00 B0088 0F B0088 00 B0088 00 B0088 0F
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
The front end sensor has been shorted to voltage, open, or shorted to ground. The front end sensor current has been above 23 mA for longer than 5 milliseconds. The SDM has not received a message from the front end sensor for more than 375 B0083 0F, B0084 0F, B0085 0F, B0086 0F, B0087 0F, B0088 0F The SDM has received erratic messages from the front end sensor. B0083 39, B0084 39, B0085 39, B0086 39, B0087 39, B0088 39 The SDM has received a Not Ok (NOK) message from the front end sensor. The SDM has not received a message. The SDM has received invalid serial data from the front end sensor. B0083 3A, B0084 3A, B0085 3A, B0086 3A, B0087 3A, B0088 3A The SDM has received an ID message from the front end sensor, which does not match the The SDM has reset the front end sensor twice without detecting the correct ID message. B0083 71, B0084 71, B0085 71, B0086 71, B0087 71, B0088 71 The SDM has received invalid serial data from the front end sensor. Action Taken When the DTC Sets The SDM commands the AIR BAG indicator ON. The SIR System is disabled and no deployments are allowed. Conditions for Clearing the DTC The condition for setting the DTC no longer exists. A history DTC will clear once 100 malfunction-free ignition cycles have occurred. Reference Information Schematic Reference SIR Schematics
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Connector End View Reference Component Connector End Views Description and Operation SIR System Description and Operation Electrical Information Reference Circuit Testing Testing for Intermittent Conditions and Poor Connections Connector Repairs Wiring Repairs Scan Tool Reference Control Module References for scan tool information. Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the appropriate sensor. 2. Disconnect the harness connector at the SDM. 3. Ignition ON, test for less than 1 volt between the following signal circuit and ground. Right front end sensor terminal 1 Left front end sensor terminal 1 Right front side impact sensor terminal B Left front side impact sensor terminal B IMPORTANT: Refer to SIR Service Precautions. When removing connectors, inspect for damage or corrosion. The front end sensor The SDM module The front end sensor wiring harness connector The SDM wiring harness connector
2008 Chevrolet Silverado 1500 2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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