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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 980 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0083 or B0084: Inflatable Restraint Seat Position Switch Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table:

  1. 2:  Inspects the SPS connector and terminals.
  2. 6:  Tests for a short to ground, a high resistance, or an open in the SPS signal circuit.
  3. 7:  Tests for a short to ground, a high resistance, or an open in the SPS low reference circuit.
  4. 8:  Tests for a short to voltage in the SPS signal and low reference circuits.
DTC B0083 or B0084

Step Action Yes No
Schematic Reference: SIR Schematics 
Connector End View Reference: SIR Connector End Views 
1 Did you perform the Diagnostic System Check - SIR? Go to Step 2  Go to Diagnostic System Check - SIR 
2 
  1. Turn OFF the ignition.
  2. If DTC B0083 is present disconnect the right seat position sensor (SPS)-located on the RF outboard seat track. If DTC B0084 is present disconnect the left seat position sensor (SPS)-located on the LF outboard seat track.
  3. Inspect both the SPS and harness connector terminals for the following conditions:
    • Corrosion
    • Terminal damage
    • Poor connections/terminal tension
Do the SPS terminals or harness connector exhibit any signs of corrosion, terminal damage, or poor connections?		 Go to Step 3  Go to Step 4 
3
  1. If the SPS terminals are damaged, replace the SPS. Refer to Inflatable Restraint Seat Position Sensor Replacement  in Seats.
  2. If the SPS harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems.
Did you complete the replacement?		 Go to Step 12  -
4
  1. If DTC B0083 is present disconnect the right main seat harness connector-located under the RF seat. If DTC B0084 is present disconnect the left main seat harness connector-located under the LF seat. Refer to Power Seat Systems Connector End Views in Seats.
  2. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 5 
5
  1. Disconnect the SDM connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
  2. Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 6 
6 
  1. If DTC B0083 is current, test the right SPS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
  2. If DTC B0084 is current, test the left SPS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 7 
7 
  1. If DTC B0083 is current, test the right SPS low reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
  2. If DTC B0084 is current, test the left SPS low reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 8 
8 
  1. Turn ON the ignition, with the engine OFF.
  2. If DTC B0083 is current, test the right SPS signal and low reference circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
  3. If DTC B0084 is current, test the left SPS signal and low reference circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 9 
9 For DTC B0083 replace the right SPS. For DTC B0084 replace the left SPS. Refer to Inflatable Restraint Seat Position Sensor Replacement .
Did you complete the replacement?		 Go to Step 10  -
10
  1. Reconnect all SIR system components.
  2. Use the scan tool in order to Clear the DTCs.
  3. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 11  System OK
11 Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
Did you complete the replacement?		 Go to Step 12  -
12
  1. Reconnect all SIR system components.
  2. Verify that all components, connectors and CPAs are properly mounted.
  3. Use the scan tool in order to clear the DTCs.
  4. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
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