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2003 Cadillac Escalade EXT code C0660 will reset

Customer concerns: tests/procedures: potential causes: tech tips: C0660 the code will be reset. 1. check the RTD fuse fuse block is underhood. 2. Check battery voltage (B +) on the orange wire for automatic control of air compressor-pin f 3. If less than B + in the PIN (F), check the wiring and communication problems between the air compressor and underhood Fuse block. 4. turn off the compressor module connector alignment and check the resistance of the positive battery voltage circuit solenoid valve for exhaust and control scheme of solenoid valve exhaust. Must be a 30-90 ohms. 5. Verify B + on the dark blue wire pin (b) air compressor with solenoid exhaust commanded off. 6. Verify B + in an electronic control module connector C2 hanger PIN B5-dark blue wire with solenoid exhaust commanded off. 7. If B + in the air compressor, but not a Electronic suspension, check the wiring and communication problems between the air compressor and electronic suspension control module. Air suspension compressor vent solenoid electronic suspension control ground wiring power conditions to install DTC C0660 • exhaust control circuit • solenoid valve short land supply chain management solenoid valve exhaust • A Brief battery in supply chain management • valve solenoid exhaust the battery positive voltage open circuit exhaust solenoid valve • public RTD fuse • faulty exhaust solenoid valve

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