Diagnostic Aids

WARNING: This page is about a different car, the 2002 Saturn LW200, 2002 Saturn L200, and 2002 Saturn L100. However, it is still accessible from the selected car via links, so may be relevant.

To locate an intermittent problem, use scan to command each of the four solenoids tied to the ODM circuit ON and OFF independently while monitoring:

A/C RELAY CKT OPEN SHORT TO GND.
A/C RELAY CKT SHORT TO VOLTS.
TCC DUTY CYCLE OPEN SHORT TO GND.
TCC DUTY CYCLE SHORT TO VOLTS.
MODULE DRIVER OVERVOLT.
MODULE DRIVER OVERTEMP.

If IGN 3 fuse is open, A/C RELAY CKT OPEN SHORT TO GND, EVAP VENT CKT OPEN SHORT TO GND and EVAP PURGE CKT OPEN SHORT TO GND parameters on scan tool will read YES.