SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2015TAHOE LS, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDATA COMMUNICATION SYSTEM - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESDTC U209F: OBJECT DETECTION CONTROL MODULE HIGH SPEED COMMUNICATION ENABLE CIRCUIT 2CIRCUIT/SYSTEM TESTING
2015 Chevrolet Tahoe LS, RWD

Circuit/System Testing

2015 Chevrolet Tahoe LS, RWDSECTION Circuit/System Testing
NOTE:

Use the schematic to determine which devices are on the K124 active safety control module's ignition circuit 10 X1. Use the connector end view to identify the object detection ignition circuit terminal for each of those devices.

  1. Ignition OFF, disconnect the harness connectors at an easily accessible device that shares the K124 active safety control module's ignition circuit 10 X1. Ignition ON.
  2. Verify that the DTC U209F remains current.
    • If the DTC becomes history 

      Replace the device that was just disconnected.

    • If the DTC remains current 
  3. With the prior devices disconnected, repeat steps 1 and 2 for each device on the ignition circuit except the K124 active safety control module.
  4. Ignition OFF, disconnect the X1 harness connector at the K124 active safety control module.
  5. Test for infinite resistance between the ignition circuit terminal 10 X1 at the K124 active safety control module and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  6. Replace the K124 active safety control module.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.