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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P24B0-P24B6, P24C7, P24D0, or P24D1 >> 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/Vehicle - Off
  2. Disconnect the electrical connector: B136 Exhaust Particulate Matter Sensor
  3. Connect a test lamp between the test points: Ignition circuit terminal 6 & Ground
  4. Ignition - On / Vehicle - In Service Mode
  5. Verify the test lamp turns On.
    • If the test lamp does not turn On 
    1. Ignition/Vehicle - Off & Remove - Test lamp & Fuse
    2. Test for less than 2 ohms between the test points: Ignition circuit terminal 6 & The other end of the circuit
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • Go to next step: If less than 2 ohms
    3. Test for infinite resistance between the test points: Ignition circuit terminal 6 & Ground
    • If less than infinite resistance - Repair the short to ground on the circuit.
    • If infinite resistance - Replace the component: B136 Exhaust Particulate Matter Sensor
    • Go to next step: If the test lamp turns On 
  6. Test or replace the component: B136 Exhaust Particulate Matter Sensor
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