Need some help...... My 1991 348ts is running well and has occasional issue with the ecu. The blower fan is intermittent and sometimes just stays on. No error codes... The solution seems to be to disconnect power to battery at connector and wait ten minutes. Then reconnect and system seems to work fine. Is there a permanent fix I need to know about.....I was thinking there is a ground issue but my sense is the system wants to reset as a cure. Thanks.
What blower fan? Engine cooling fan (which one or both), HVAC interior fan, condenser fan, oil cooler fan?
