Code 92 low speed fan

[MicTheGreaseMonkey]

Ive got code 92 low speed fan not comming on. Fuses ok relays ok. Fan motor works when jumped & i hav continuity. Any idea what else it could b . Vehicle is vx commodore berlina v6.

 

[Trevor loves holden.]

With your A/C on it should kick in, 99% of the time its the relay, other issues is wiring or temp sender, did you replace the relay?

 

[MicTheGreaseMonkey]

With your A/C on it should kick in, 99% of the time its the relay, other issues is wiring or temp sender, did you replace the relay?

replaced relay & fuse.but the a/c has no gas in it could this affect the fan?

 

[Trevor loves holden.]

replaced relay & fuse.but the a/c has no gas in it could this affect the fan?

No, I think the big fan switchers on at 104deg then off at 99deg, If you turn the A/C on it automatic kicks in that's if your compressor activates when on.

 

[Trevor loves holden.]

The bcm controls the first fan from a signal from the ecu there's a high-speed fan controlled from the ecu directly at a higher temp.unplug the coolant sensor and turn the engine on and one fan should start followed by the 2nd fan shortly after will at least confirm if the system is working
High fan will kick in a 111deg

 

[MicTheGreaseMonkey]

Yeah disconnected etc sensor both fans come on bit not when it's connected & the engine is running only high speed comes on. AC has no gas relays r fine fuses r ok.& if I bridge relay terminals on the problem fans (low speed) the fan will operate. So it's got me stuffed gonna get it looked ,@ by an auto elections. Hope he can figure it out.