Oldsmobile Questions? Ask a Mechanic for Answers ASAP
the 1652 is a code set for the cooling fans on this car which should not be causing this issue
the alternator volts and amps tested good and the battery tested good for volts and amps and NO bad cells ?
any access to a good multi meter to read amps ?
Output Driver Modules (ODMs) are used by the PCM to turn on many of the current driven devices that are needed to control various engine and Transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding ON.Unlike the Quad Driver Modules (QDMs) used in prior model years, ODMs have the capability of diagnosing each output circuit individually. DTC P1652 set indicates an improper voltage level has been detected on ODM B output 2, which control the Fan 2 relay.CONDITION FOR SETTING THE DTC
ACTION TAKEN WHEN THE DTC SETS