SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEPARKING ASSISTANCE SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1405 (UD7)CIRCUIT/SYSTEM TESTING
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol

Circuit/System Testing

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Circuit/System Testing
  1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
  2. Test for infinite resistance between the 12 V reference circuit terminal 4 and ground.
    • If less than infinite resistance 
    1. Ignition OFF, disconnect the harness connector at each of the B306 Parking Assist Sensors.
    2. Test for infinite resistance between the 12 V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If less than 2 Ω, replace the appropriate B306 Parking Assist Sensor.
    • Go to next step: If infinite resistance 
  3. Connect the X2 harness connector at the K182 Parking Assist Control Module, ignition ON.
  4. Verify DTC B1405 is not set.
    • If DTC B1405 is set. 
    1. Ignition OFF, disconnect the harness connector at each of the B306 Parking Assist Sensors.
    2. Verify DTC B1405 is not set.
      • If DTC B1405 is set.

        Replace the K182 Parking Assist Control Module.

      • Go to next step: If DTC B1405 is not set.
    3. Verify DTC B1405 is not set while connecting the harness connector at each B306 Parking Assist Sensor, one at a time.
    • If DTC B1405 does set

      Replace the B306 Parking Assist Sensor that was connected immediately before DTC B1405 set.

    • Go to next step: If DTC B1405 does not set.
  5. All OK.
    • Go to next step: If DTC B1405 is not set. 
  6. All OK.
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.