LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Parking Assistance Systems) >> Diagnostic Information and Procedures >> DTC B0958, B0959, B0960, or B0961 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, scan tool disconnected, disconnect the harness at the appropriate B306 Parking Assist Sensor. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω replace the K182 Parking Assist Control Module.
    • Go to next step: If less than 10 Ω 
  3. Ignition ON.
  4. Test for 7.8 - 10.2 V between the 8 V reference circuit terminal 1 and ground.
    • If less than 7.8 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for infinite resistance between the 8 V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for less than 2 Ω in the 8 V reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K182 Parking Assist Control Module.
    • If greater than 10.2 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for less than 1 V between the 8 V reference circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K182 Parking Assist Control Module.
    • Go to next step: If between 7.8 - 10.2 V 
  5. Test for 10.3 - 12.0 V between the signal circuit terminal 3 and ground.
    • If less than 10.3 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K182 Parking Assist Control Module.
    • If greater than 12.0 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module, ignition ON.
    2. Test for less than 1 V between the signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K182 Parking Assist Control Module.
    • Go to next step: If between 10.3 - 12.0 V 
  6. Test or replace the B306 Parking Assist Sensor.
scientia non olet · About LEMON Manuals