Heavy Equipment Repair

CM2450 X15 X124B Engine Intake Air Heater 1 Current Below or Open

This instruction show you guide on how to solve CMX2450 X15 X124B engine intake air heater 1 circuit-current below normal or open circuit.

Related Contents:

INSITE 8.9.2 Engine Diagnostic Software

Cummings INLINE 6 Diagnostic Adapter

 

 

Lamp:

Amber

 

Reason:

A malfunctioning engine intake air heater circuit has been detected.

 

Effect:

Engine may not start or may be difficult to start.

 

Circuit Description:

The intake air heater improves starting and white smoke control in cold ambient conditions.

 

Component Location:

The intake air heater is located at the air inlet connection to the intake manifold. The location of the intake air heater relays will vary by vehicle and engine configuration.

 

Conditions for Running the Diagnostics:

This diagnostic runs at initial key ON when the intake air heater is commanded ON.

 

Conditions for Setting the Fault Codes:

The Engine Control Module(ECM) detected the voltage drop during intake air heater operation was less than expected.

 

Action Taken When the Fault Code Active:

The ECM illuminates the amber check engine lamp and/or Malfunction Indicator Lamp (MIL) after the diagnostic fails on two consecutive trips.

 

Conditions for Clearing the Fault Code:

1 To validate the repair, perform a key cycle and leave the key in the ON position for 2 minutes. Then start the engine and let it idle for 1 minute.

 

2 The fault code status displayed by the diagnostic tool will change to inactive immediately after the diagnostic runs and passes.

 

3 The ECM will turn off the amber check engine lamp immediately after the diagnostic runs and passes.

 

4 For On-Board Diagnostics(OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (MIL) after three consecutive trips where the diagnostic runs and passes.

 

5 The reset all faults command in the diagnostic tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.

 

Possible causes of this fault code include:

1 A malfunctioning engine intake air heater.

2 An open circuit in the engine harness.

3 A short circuit to ground in the engine harness.

auto

Recent Posts

How to Remove Center Joint and Center Frame for HITACHI Hitachi EX5600-7B

This instruction show you guide on how to remove center joint and center frame for…

2 days ago

How to Repair Doosan Machine P0100 DTC Signal Error

How to solve Doosan heavy duty machine P0100 fault code signal error of air mass…

1 week ago

How to Solve Fendt 800 Vario S4 wayline Running Slow

If the vehicle is oscillating on the wayline or catches up the wayline very slowly…

2 weeks ago

How to Adjust Cruise Control Release Linkage for Kubota L3901 Excavator?

This is instruction show you guide on how to adjust cruise control release linkage for…

2 weeks ago

How to do Perform Cylinder Cut-off Test for Massey Ferguson Tractor

This instruction show you guide on how to use AGCO EDT diagnostic software to perform…

2 weeks ago

Hitachi EX5600-7B Folding Stairway and Surrounding Parts Removal Guide

This instruction show you guide on how to remove folding stairway and surrounding part for…

2 weeks ago