LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2010 >> DTS 4.6 9 >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System >> Diagnostic Information and Procedures >> DTC B356A >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for less than 10 ohms between the ground circuit terminal 8 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Mode Switch parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 9 for a short to ground. If the circuit tests normal, replace the vehicle direction alert alarm warning module.
  4. Install 3A fused jumper wire between the signal circuit terminal 9 and ground. Verify the scan tool Mode Switch parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the vehicle direction alert alarm warning module.
  5. If all circuits test normal, test or replace the headlamp switch.
scientia non olet · About LEMON Manuals