Engine Controls - MIL ON/DTC P0128 Set

MIL On With DTC P0128

NOTE:
This article applies to all 03-04 Civic Hybrids and 05 Civic Hybrids from VIN JHMFS9...5S000001 thru JHMES9...5S016049. Got a Civic Hybrid in your shop with the MIL on and DTC P0128 (cooling system malfunction) set? To fix this problem, see S/B 05-028, Product Update: FCM Update to Prevent Catalyst DTC P0420 and/or VPS DTC P1021, MCM Update to Current Specifications, and update the ECM and the MCM.