Log in or Sign up

92 W900b ac wiring

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Hman621, Aug 14, 2025.

Aug 14, 2025 #1

Hman621 Bobtail Member

1

0

May 2, 2022

0

Does anyone have a ac wiring schematic for 92 w900b? Trying to find which wire controls conpressor clutch

Hman621, Aug 14, 2025

Hman621, Aug 14, 2025

#1
Trucking Jobs in 30 seconds

Every month 400 people find a job with the help of TruckersReport.

Wait, employers can't reach you!

Without your consent employers will not be able to contact with job offers, would you like to opt-in now?

Zip

Class A CDL Experience

Please select ALL of your current, valid driver’s licenses

CDL A CDL B CDL C

Please select the number of verifiable months you’ve been driving professionally using your Class A CDL within the last 3 years.

Each company we work with has specific experience requirements for their drivers. In order for you to receive the best possible offers, please make sure your answers above are accurate prior to submitting.

Name

Email

Phone

By checking this box and clicking the "Send me job offers" button below, I represent that I:
1. am 18+ years of age.
2. have read and agree to the TruckersReport Terms of Use and Privacy Policy.
3. agree to receive email marketing from TruckersReport and its Truck Driving Job Partners.

By checking this box and clicking the "Send me job offers" button below. I give my express consent authorizing TruckersReport and its Truck Driving Job Partners to contact me by telephone, which may include artificial or pre-recorded calls and/or text messages, delivered via automated technology to the phone number(s) that I have provided above (for which I am the primary user and subscriber), including wireless number(s), if applicable. I understand that my consent is not required to get job alerts.
Aug 14, 2025 #2

BoxCarKidd Road Train Member

4,552

6,642

Aug 26, 2014

0

No but memory says odd wire on blower switch is for the compressor. Then to the thermostat. Trinary switch on dryer controls the fan and the power to compressor.

BoxCarKidd, Aug 14, 2025

BoxCarKidd, Aug 14, 2025

#2

Star Rider Thanks this.
Aug 14, 2025 #3

BoxCarKidd Road Train Member

4,552

6,642

Aug 26, 2014

0

In front of the clutch pedal fuse box? Fuse and relay there? Look for burnt connectors.

BoxCarKidd, Aug 14, 2025

BoxCarKidd, Aug 14, 2025

#3

Star Rider Thanks this.
Aug 14, 2025 #4

Star Rider Road Train Member

1,791

18,831

Sep 23, 2019

Michigan

0

There is a micro switch in your HVAC controls, when you move it to AC or defrost it gets bumped.

Looks like this,

Star Rider, Aug 14, 2025

Star Rider, Aug 14, 2025

#4

BoxCarKidd Thanks this.