Dodge Diesel - Diesel Truck Resource Forums - Heater grid , what triggers soleniod ?

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SKATERHAULER

12-08-2011 05:27 PM

Heater grid , what triggers soleniod ?

Been trouble shooting grid heater . Grid Ok , solenoid Ok as well as all connections . When I ground small lug on Sol grid heats up . Simply put where does the Solenoid get signal from ? Is there a fuse somewhere ?

patdaly

12-09-2011 08:08 AM

Signal from PCM, more correctly, PCM drags the coil to ground.

Not sure if the 95 follows the 97, but on 97's, PCM connector C1, pins A9 is relay # 2 control, and C1, pin A7 is relay #1 control.

Check you air intake temperature sensor, that is what I believe tells it it is cold enough to fire.

infidel

12-09-2011 10:31 AM

Everything you need to know about the grids> http://dodgeram.org/tech/dsl/trouble...niford_htr.htm

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