Vessel View Fault HELP Transmission Overtemp!

[bmay1909]

I’m new here so if this is in the wrong spot please let me know.

I have an 04 Searay Sundancer 320 with twin 6.2 MPI Mercruiser V drives.

I received the following error on Vessel View Mobile over the weekend.

"Transmission temperature switch A temperature sensor value is higher than normal"

An alarm on my Smartcraft gauge says "Fault Sensor."

Does anyone have any ideas on what could be causing this fault?

 

[alldodge]

Shorted wire leading to the sensor, or shorted sensor
When the wire feeding the sensor goes at or near to zero ohms then the fault shows up

 

[bmay1909]

I’m new here so if this is in the wrong spot please let me know.

I have an 04 Searay Sundancer 320 with twin 6.2 MPI Mercruiser V drives.

I received the following error on Vessel View Mobile over the weekend.

"Transmission temperature switch A temperature sensor value is higher than normal"

An alarm on my Smartcraft gauge says "Fault Sensor."

Does anyone have any ideas on what could be causing this fault?

How do I determine if it’s shorted wire or sensor?

 

[alldodge]

There should be a sensor on the trans with a Black and a Dark Blue/Brown wire on it. Remove the wires and measure across both pins and see what the ohm value is. Then measure from one pin at a time to the body of the sender and record values.

If any of the values are below 200 ohms, there might be an issue

If issues are high, then measure the wires to ground. The Black should be near zero, the blue/brown should not

 

[bmay1909]

There should be a sensor on the trans with a Black and a Dark Blue/Brown wire on it. Remove the wires and measure across both pins and see what the ohm value is. Then measure from one pin at a time to the body of the sender and record values.

If any of the values are below 200 ohms, there might be an issue

If issues are high, then measure the wires to ground. The Black should be near zero, the blue/brown should not

Are either one of the pictures below the sensor I’m looking for?

 

[alldodge]

Its the one with the Blue/Wite wire, the other is the water pressure sensor

 

[bmay1909]

Its the one with the Blue/Wite wire, the other is the water pressure sensor

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Thank you! What exactly is this sensor called?

 

[alldodge]

Transmission temp

 

[bmay1909]

Transmission temp

Where can I find a new temp sensor?

Make: ZF Hurth
Model: HSW 63 UV -2.0
Ratio: 2.0:1
Serial: 18411 N

 

[alldodge]

Its item 12 p/n 87-88031

https://www.mercruiserparts.com/bam/subassembly/31710/7752/290