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RWD - 1989 245 DL Windshield Wiper Non-functioning

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1989 245 DL Windshield Wiper Non-functioning 200 1989

I have a 1989 Volvo 245 DL nearing 200k and its windshield wipers have ceased to function.

I have been trying to determine the cause of the failure using the circuit path diagrams in the Volvo Greenbook Section 3 (39) Wiring Diagrams 240, 1987-1988.

When I set the switch to the first speed position and back probe the wiper motors connect with a test light I find that I am receiving current on Yellow wire (53a), the Brown wire (53), and the Green wire (53b). There is no current on the fourth wire White/Black (31b). According to the circuit flow diagram for Speed on there is supposed to be only current flow on the Yellow wire, which is always hot because it goes directly to the fuse and the current should flow into the motor from the column switch on the brown wire. According to the diagram the green wire is not supposed to have any current flowing into it, but in mmy case the test light detects current.

I then removed the connector and found only current on the Brown wire and Yellow wire. Then there was no current on the Green wire.

The only conclusion I can reach is that something internal to the motor is causeing current flow into the green wire.

Does anyone have any idea what is wrong? Would appreciate it if you could discribe trouble shooting technique to determine error with wiper motor system (including switch and relay).

 





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New 1 1989 245 DL Windshield Wiper Non-functioning [200][1989]
posted by  Ronin4Hire  on Fri Feb 10 15:43 CST 2017 >

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