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Home >> Chevrolet >> 1995 >> Lumina Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (A/C-Heater System - Automatic) >> Self-Diagnostics >> Code 08 Or 09, Passenger Control Short Or Open

Code 08 Or 09, Passenger Control Short Or Open

WARNING: This page is about a different car, the 1995 Oldsmobile Cutlass Supreme. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect passenger A/C-heater select switch. Turn ignition on. Set A/C-heater control to DUAL, AUTO. Measure voltage between passenger A/C-heater select switch connector terminal "A" (Dark Blue wire) and ground. If approximately 5 volts are present, go to step 3). If approximately 5 volts are not present, go to next step.
  2. If Code 08 was set, check Dark Blue wire for a short to ground. If Code 09 was set, check Dark Blue wire for a short to voltage. If circuit is okay, replace A/C-heater control.
  3. Measure voltage between A/C-heater switch connector terminal "A" (Dark Blue wire) and terminal "B" (Yellow wire). If voltage is not approximately 5 volts, check Yellow wire for an open circuit . If voltage is approximately 5 volts, check for poor connection at passenger A/C-heater select switch. If connector is okay, replace passenger A/C-heater select switch.
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