Low Air Pressure For 2005 Sterling Wiring Diagram

Hello everyone looking to see if anyone knows the location of the low air alarm buzzer on my 2002 sterling l7500 the light on the dash comes on when the air is low but no buzzer im taking one of my guys for his license next week and would like the alarm to work.

Low air pressure for 2005 sterling wiring diagram. Pin50 12v during crank from the ignition switch. Low air pressure. Pin86 12v from pin 8 of the ac switch in dash when depressed through the ac low pressure cut off switch and the ac anti frost switch. The water temp oil pressure warning lights flash the tachometer and speedometer the voltmeter oil pressure gauge and water temperature gauge each pin to the right side of each gauge.

The most common problem with a. One is located between the starter motor battery terminal the other is in the alternator wiring circuit protection. The fan clutch may slip if the air supply pressure is below 70 psi 483 kpa or if there is a leak inside the fan clutch. Page 113 brakes 102894 1.

Pressure sensor wiring diagram amazon printed. Air valve solenoid radiator fan stays on freightliner century class 423 duration. I have a frieghtliner m2 class that a low air buzzard and light on. Two 10 gauge fuse links may be used on sterling vehicles built before february 27 2001.

Fe replace the switch but its still there. Hi that is the low air pressure sensor not completing circuit sorry i do not have diagram but you really dont need then that just locate the low air pressure sensor and replace to verify that it is bad take wire from switch and ground it the buzzer will go off wayne. 2005 freightliner m2 low air pressure lamp and buzzer stays on all the timefound 2 wire plug on amu disconnected replugged and also jumped with no. If the operating tempera ture is below 200f 290c use a low temperature extreme pressure grease.

I am attaching a diagram of the amu also. Freightliner ac systems are much larger than most vehicle systems and they use a larger condenser and an air compressor to cool the air. Modern automotive pressure sensors are of up. Diagram if you have anymore.

Pin 15 12v in run and crank on ign switch from positive buss bar under relay panel fed by ign. Did you know that a faulty hvac or air conditioning high pressure sensor can make the engine. I have a 2005 international 9200 with a cummins ism engine. Sterling trucks maintenance manual.

Pressure sensor wiring diagram. The engine runs fine but the truck has developed an instrument panel problem. Located in the battery cable wiring assembly and pro vide power to the pdm fuses for the electrical audio and gauges in the cab.