Topic: Common Ground Issue?

[bp1911]

1985 4Runner 22R-E

I have no 4wd indicator light on my instrument cluster (bulb is good)

No reverse lights

And the left side of my gauge cluster does not work – well the temp gauge works sometimes usually in the first :30 min of driving and the oil pressure gauge does not work.

I have bench tested the gauges and they work according to the FSM diags.

I have replaced all the sending units with the appropriate Toyota parts.

I have grounded the firewall to the engine block

I have jumped the ground on the “working” side of the cluster to the non-working side – No change

What next? Is there a common ground that I am missing?

Thoughts suggestions?

[tufsurf]

no 4x light on my 85 either. i did find a connector flopping around down by my starter that looks like it should go somewhere. im checkin the FSM if i fix mine ill post here for ya

[Rocksurfer]

Check to see if the ground strap from the engine to the firewall is intact. That is the most common thing that will cause the intrument cluster to go nuts.

[bp1911 [OP]]

That was one of the first I things I did. The firewall is grounded.