LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2010 >> Acadia SL, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 347 (Object Detection System) >> Diagnostic Information and Procedures >> DTC B094D or B094E: Side Object Detection Indicator >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the appropriate A9 Outside Rearview Mirror. It may take up to 2 minutes for all vehicle systems to power down.
    • X510 - Driver Door Harness to Outside Rearview Mirror
    • X610 - Passenger Door Harness to Outside Rearview Mirror
  2. Test for less than 10 Ω between the ground circuit terminal 9 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • If less than 10 Ω 
  3. Ignition ON, connect a test lamp between the control circuit terminal 8 and the ground circuit terminal 9.
  4. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool.
    • If the test lamp is always OFF 
    1. Ignition OFF, disconnect the harness connector at the appropriate B218 Side Object Sensor Module.
    2. Test for infinite resistance between the control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the B218 Side Object Sensor Module.
    • If the test lamp is always ON 
    1. Ignition OFF, disconnect the harness connector at the B218 Side Object Sensor Module, ignition ON.
    2. Test for less than 1 V between the control circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the B218 Side Object Sensor Module.
    • If the test lamp turns ON and OFF 
  5. Test or replace the A9 Outside Rearview Mirror Glass.