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Home >> Buick >> 1997 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.8L >> Diagnostic Trouble Codes >> DTC P1610 - Standard Body Module Serial Data Circuit >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK. See the BASIC TESTING - 3.8L article. After performing OBD system check, go to next step.
  2. Check if scan tool can display data from PCM. If data is displayed, go to next step. If data cannot be displayed, diagnose data link connector.
  3. Check an intermittent, short, or open connection on serial data circuit between Body Control Module (BCM) and PCM. Repair as necessary. After repairs, go to step 6). If circuit is okay, see DIAGNOSTIC AIDS.
  4. Check serial data circuit for poor connection at BCM. Repair as necessary. After repairs, go to step 6). If circuit is okay, go to next step.
  5. Check serial data circuit for poor connection at PCM. Repair as necessary. After repairs, go to next step.
  6. Using scan tool, clear DTCs. Start and warm engine to normal operating temperature. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this diagnostic ran and passed, system is okay. If not, repeat step 2).
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