CAT 262c2 Aux Hydraulic Fault Code

[RnR LAMF]

Hello

So I got a Cat 262c2 skidsteer that has a flashing yellow warning lamp, plugged in and found the following fault codes

2204-3 Aux Lever #1 Position Sensor : Voltage Above Normal
2204-4 Aux Lever #1 Position Sensor : Voltage Below Normal
2004-8 Aux Lever #1 Position Sensor : Abnormal Frequency

cat0262c s/n tmw000361

I checked all the fuses, inspected wiring and connectors, nothing out of the ordinary there. Tested continuity to the right side joystick roller switch and didn't get anything there or any observable signal but the RH trigger button works.. On ET the duty cycle just stays at 100% and when I change the Joystick Input #1 Config from PWM to Switch to Ground the code goes inactive, but I don't think that solves the problem.

I suspect that I may just have a bad switch, but I feel like maybe there's something I'm not checking.
Any help or insight would be appreciated

 

[Nige]

2004-8 Aux Lever #1 Position Sensor : Abnormal Frequency

Do you mean 2204-8.? That would make more sense.

 

[Nige]

On ET the duty cycle just stays at 100% and when I change the Joystick Input #1 Config from PWM to Switch to Ground the code goes inactive, but I don't think that solves the problem.

The thumbwheel sensor is PWM. If it will not register a varying duty cycle either side of 50% (probably 15-85%) in ET as you roll it away from the centre position in both directions it is most likely toast.
The bad news is the roller/sensor assembly is not available separately. It will cost you a replacement handle, Part Number 273-9103. See attachment.

 

[RnR LAMF]

Do you mean 2204-8.? That would make more sense.

Oh yeah 2204-8 my bad!

Gotta replace the whole joystick huh? Geez..

Thank you so much for your help and the p/n Nige!

 

[Nige]

Gotta replace the whole joystick huh? Geez..

Only the handle, but you will still have a sharp intake of breath when they tell you the price. Around $750 IIRC.
If you want to be double sure I can give you the troubleshooting procedures for the 3 Codes you have. If they all point to the thumbwheel roller sensor being Donald Ducked I guess that would confirm it.

 

[RnR LAMF]

If you want to be double sure I can give you the troubleshooting procedures for the 3 Codes you have. If they all point to the thumbwheel roller sensor being Donald Ducked I guess that would confirm it.

If you don't mind that would be helpful, best to double check before having to fork that over!

AGAIN, thank you very much for your help Nige!

 

[Nige]

See attached.