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HOMESERVICE MANUALSCHEVROLET2003IMPALA BASE, 3.4 EREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESCONTROL MODULE REFERENCES
2003 Chevrolet Impala Base, 3.4 E

Control Module References

2003 Chevrolet Impala Base, 3.4 ESECTION Control Module References
Control Module References

Control Module Repair Instructions Diagnostic System Check Schematic
BCM Refer to Body Control Module Replacement  - Refer to Body Control System Schematics 
DIC Refer to Console Replacement - Overhead in Instrument Panel, Gages and Console Refer to Diagnostic System Check - Driver Information Systems in Instrument Panel, Gages and Console Refer to Driver Information System Schematics in Instrument Panel, Gages and Console
EBCM Refer to Electronic Brake Control Module Replacement in Antilock Brake System Refer to Diagnostic System Check - ABS in Antilock Brake System Refer to ABS Schematics in Antilock Brake System
IPC Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages and Console Refer to Diagnostic System Check - Instrument Cluster in Instrument Panel, Gages and Console Refer to Instrument Cluster Schematics in Instrument Panel, Gages and Console
PCM Refer to POWERTRAIN CONTROL MODULE Refer to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS for 3.4L or DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS for 3.8L For Impala, refer to or ENGINE PERFORMANCE . For Monte Carlo, refer to ENGINE PERFORMANCE
Radio Refer to Radio Replacement in Entertainment Refer to Diagnostic System Check - Radio/Audio System in Entertainment Refer to Radio/Audio System Schematics in Entertainment
SDM Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement (AK5) or Inflatable Restraint Sensing and Diagnostic Module Replacement (AJ7) in SIR Refer to Diagnostic System Check - SIR in SIR Refer to SIR Schematics in SIR
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.