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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Battery, Starting System And Charging System - Except Hybrid) >> Diagnostic Information and Procedures >> DTC P058A-P058F, P16D4-P16D6, P16DC-P16DF, or P16E1-P16E3 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Some control module ground circuits may require up to 20 min after the ignition is turned Off before achieving a resistance reading of less than 5 ohms. In most cases the readings will drop below 20 ohms within 1 min indicating the control modules are going to sleep.
  1. Ignition/Vehicle & All vehicle systems - Off
  2. Test for less than 2 ohms between the test points:Battery Negative Post & B110 Battery Sensor Module - Clamp
    • If 2 ohms or greater 
    1. Ignition/Vehicle & All vehicle systems - Off
    2. Test for less than 2 ohms between the test points:Ground circuit terminal @Control module harness & The other end of the circuit
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Repair the open/high resistance in the ground connection.
    • Go to next step: If less than 2 ohms 
  3. Disconnect the electrical connector:B110 Battery Sensor Module
  4. Verify a test lamp turns On between the test points:B+ circuit terminal 2 @ Ground
    • If the test lamp does not turn On and the circuit fuse is OK 
    1. Remove - Test Lamp
    2. Test for less than 2 ohms between the test points:B+ circuit terminal @ Control module harness & Output terminal @ Fuse
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.
    • If the test lamp does not turn On and the circuit fuse is open 
    1. Remove - Test Lamp
    2. Test for infinite resistance between the test points:B+ circuit terminal @ Control module harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If infinite resistance - Replace the component:Control Module
    • Go to next step: If the test lamp turns On 
  5. Replace the component:B110 Battery Sensor Module
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