I am trying to trouble shoot the wiper motor on my TR4A. It seems to be a two speed motor with three wires (plus ground) going into it. However the wire diagram I have for the car seems to show a one speed motor with a simple SPST switch.
From my experimenting it seems the motor works on slow when both inputs are grounded and then on fast when only one input is grounded. My switch does have two on positions and five terminals. I may have a TR250 or TR6 wiper motor and switch for all I know.
Does anyone have access to a wire diagram that shows the two speed motor set up (or can describe it in words). I am trying to ring out the switch to figure out where the wires go. I assume one switch terminal goes to ground and two others go to the motor (the third motor input seems to be hot all the time which makes sense if the switch grounds the other side). But not knowing if the switch is working properly ringing out the switch does not tell me much (I need to know what the switch is suppose to be doing /ubbthreads/images/graemlins/smile.gif
From my experimenting it seems the motor works on slow when both inputs are grounded and then on fast when only one input is grounded. My switch does have two on positions and five terminals. I may have a TR250 or TR6 wiper motor and switch for all I know.
Does anyone have access to a wire diagram that shows the two speed motor set up (or can describe it in words). I am trying to ring out the switch to figure out where the wires go. I assume one switch terminal goes to ground and two others go to the motor (the third motor input seems to be hot all the time which makes sense if the switch grounds the other side). But not knowing if the switch is working properly ringing out the switch does not tell me much (I need to know what the switch is suppose to be doing /ubbthreads/images/graemlins/smile.gif