Where is the overdrive relay
Where is the Overdrive relay Physically located on this vehicle, how accessible is it? Another question really, is the Intake Air Temperature sensor an integral part of The Mass Air Flow meter on this vehicle? I replaced the MAF due to a " IAT sensor one circuit Low Input " OBDII code.
Usually the IAT sensor is located in the air box, separate from the MAF sensor. I don't know about the overdrive relay, this is usually controlled by a solenoid in the valve body of the trans, somewhat major to access.
The S90 does not use an overdrive relay. It is a 4 speed electronically controlled gearbox. What exactly is the issue with your transmission? As far as I know, the S90 does not have an IAT sensor, what exactly is the OBD 2 code you are getting?
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