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Home >> Chevrolet >> 2011 >> Cruze LS, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC B1370 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the KR73 ignition run/crank relay.
  2. Test for less than 10 Ω between the ground circuit terminal 86 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify that a test lamp illuminates between the Ignition circuit terminal 85 and ground.
    • If the test lamp does not illuminate, test the Ignition circuit for an open/high resistance. If the circuit tests normal replace the K9 BCM.
  4. Ignition OFF, reconnect the KR73 ignition run/crank relay.
  5. Disconnect the harness connector at the P16 Instrument Cluster.
  6. Ignition ON, verify that a test lamp illuminates between the ignition terminal 32 and ground.
    • If the test lamp does not illuminate and the Ignition fuse is good, test the ignition circuit for an open/high resistance. If the circuit tests normal, replace the KR73 ignition run/crank relay. If the ignition fuse is open, test the ignition circuit for a short to ground. If the circuit tests normal, replace the P16 instrument cluster.
  7. If all circuits test normal, replace the P16 instrument cluster.
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