WHATSAPP +1 (725) 567-5938

Keep in touch with our customer service representatives.

WE ARE THE BEST

PROVIDER OF REPAIR PDF MANUALS

Over 25 years of service with a 100% satisfaction guarantee

Concerning ourselves and our vision  100% customer satisfaction, after-sale support, and maintaining contact with our regular clients are our goals.

Until you download it and save it in a secure location Since we sincerely care about you and try our best to accommodate your demands, your feedback is essential to our efforts to improve our services.

What we provide to our clients  Original factory service manuals, repair manuals, workshop manuals, parts manuals, technical manuals, operator’s manuals, owner manuals, electrical diagrams, hydraulic diagrams, and many other instructions for the heavy mechanic industry are available here.

Over 15,000 customers have faith in our service. We value your business and are grateful that you have chosen www.repair-manuals.com!

WHATSAPP +1 (725) 567-5938

Keep in touch with our customer service representatives.

CUMMINS FAULT CODE 122

ADVERTICEMENT

mk:@MSITStore:C:\Users\HP\Desktop\Backup\Insite\Cummins%20FIS\F


FAULT CODE 122

Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source

Overview


CODE

REASON

EFFECT

Fault Code: 122

Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal

Engine power derate to no air setting for industrial

PID:

or Shorted to High Source. High signal voltage detected at the

applications. None on performance for power

SPN: 102

intake manifold pressure circuit.

generation applications.

FMI: 3



LAMP: Amber



SRT:



Intake Manifold 1 Pressure Sensor Circuit


Circuit Description


The intake manifold 1 pressure sensor monitors intake manifold pressure and passes information to the engine control module (ECM) through the engine harness. If the intake manifold 1 pressure sensor circuit voltage becomes too high, it will cause a derate condition on automotive applications. For marine applications, no derate condition occurs. There is no engine protection for a circuit or a defective sensor.


Component Location


The intake manifold 1 pressure sensor is located in the air intake. Use the following procedure for a detailed component location view. Refer to Procedure

100-002 in Section E


Shop Talk


The intake manifold 1 pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active. Before troubleshooting Fault Code 122, check for multiple faults.


Possible causes of this fault code include:


  • Open return circuit in the engine harness, connectors, or sensor

  • Signal wire shorted to sensor supply or battery voltage.


Refer to Troubleshooting Fault Code t05-122.


Last Modified: 26-Nov-2012

Copyright © 2000-2010 Cummins Inc. All rights reserved.

Scroll to Top