With RPO C68

Symptom Action

Blower will not run in any mode Do Test A
Blower runs in the OFF mode Do Test B
Blower runs at high or low speed only Do Test B


Test A Test A - Blower Motor Test
Test B Test B - Heater and A/C Power Module Test


^ Do the test listed under Diagnostic Tests for your symptom in the Symptom Table above. Component Tests and General Diagnostics