LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Instrument Panel System Displays & Gages) >> Diagnostic Information and Procedures >> DTC B0160 or B0161 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the ambient air temperature sensor.
  2. Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit terminal B and ground.
    • If greater than the specified value, test the low reference circuit terminal B for an open/high resistance.
  3. Ignition ON, verify the driver information center (DIC) displays "OC".
    • If the DIC does not display "OC", test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the DIC.
  4. Ignition ON, install a 3A fused jumper wire between the signal circuit terminal A and the low reference circuit terminal B. Verify the DIC displays "SC".
    • If the DIC does not display "SC", test the signal circuit terminal A for a short to voltage or an open/high resistance. If the circuit tests normal, replace the DIC.
  5. If all circuits test normal, test or replace the ambient air temperature sensor.
scientia non olet · About LEMON Manuals