SL L4-1.9L DOHC VIN 7 (1992)
An SPI communication failure occurs during an incorrect PCM power down that can be caused by repeated cycling of the ignition, calibration download,
battery connect or disconnect.
CORRECTIVE
ACTION:
Turn the ignition off, wait 10 seconds to reset the PCM and then start the vehicle.
NOTE:
If engine coolant temperature is 42~C (106~F) or above, it may take up to five minutes of ignition off time to reset the PCM.
If any of the vehicle symptoms of intermittent no fan operation or high coolant temperature, no A/C cool down, increased idle, or no RPM or tachometer
inoperative still exist, refer to the appropriate Saturn Service Manual section.