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CAT 305e RH Thumbwheel stopped working

RnR LAMF

Member
Joined
Feb 11, 2020
Messages
15
Location
Salida,Colorado
Hello HEF!
I got a Cat305e2 mini-ex and the RH Thumbwheel stopped working entirely. Active code for voltage above normal 1658-3 seems to be the problem, checked all the relays and fuses they're ok, plugged and unplugged the connector, its got battery voltage to the connector (well I think at least...not sure which wire is supposed to supply voltages). Looking like that thumbwheel switch is likely bad but before dropping $ id like to verify that

I was hoping someone could help out with wiring diagram of any diagnostic help for that code?

CAT 305e2 s/n H5M11340

Thanks!
 

Nige

Senior Member
Joined
Jun 22, 2011
Messages
30,117
Location
G..G..G..Granville.........!! Fetch your cloth.
Attached the troubleshooting procedure for 1685-3.
I'll send you an electrical schematic
The replacement Part Number is 528-5705, and that is for a complete handle assembly Ref #1. The thumbwheel switch is not sold separately.

1685230416623.png
 

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  • PWM Sensor Signal Test.pdf
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