Medium and Heavy Trucks

Have Truck Repair Questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Medium and Heavy Trucks

I have a 2003 International 4300 tow truck with a dt466

Customer Question
Hello. I have a...
Hello. I have a 2003 International 4300 tow truck with a dt466 engine. The engine light has come on and we are getting an engine code 108 and 164. Both codes are thrown as soon as switch is turned on even after clearing code. (ie truck does not have to be run.)
Submitted: 5 years ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 6 minutes by:
5/3/2012
Technician: sevn103, Journeyman replied 5 years ago
sevn103
sevn103, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 275
Experience: dealer mechanic for over 14 yrs.
Verified
I'm guessing you are using a generic scanner, if so what make is it? Also does it give you any more info, description, pid Sid fmi numbers with it?
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 5 years ago

I am using an OTC 34`8 HD Reader.

Codes are:

128 108 4 PID

128 164 4 PID

Barometric Pressure voltage below normal or shorted low

Engine # 1 Injector control pressure voltage Below normal or shorted low.

Customer reply replied 5 years ago

Code 1 128 PID/SID 108 FMI 4

code2 128 PID/SID 164 FMI 4

Customer reply replied 5 years ago
Relist: Other.
Sent in more info as requested. Recieved no reply. It has been over two hours.
Technician: sevn103, Journeyman replied 5 years ago
I can cross these over when I get back to shop, or we can see if another expert can help.
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 5 years ago

Lets see if another expert can help. Thanks.

Technician: Walt-mod,
 replied 5 years ago
Walt-mod
Category: Medium and Heavy Trucks
Satisfied Customers: 27
Verified
Hi, I'm a moderator for this topic. Your Professional has opted out and I wonder whether you're still waiting for an answer. If you are, please let me know and I will do my best to find another Professional to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!
Ask Your Own Medium and Heavy Trucks Question
Technician: sevn103, Journeyman replied 5 years ago

this is to test the barometric psi sensor

Barometric Absolute Pressure Sensor and Circuit Diagnostics

Connector Voltage Checks (check with sensor connector (1808) disconnected, ignition key on)

Test

Spec.

Comments

A to gnd

<0.25V

Ground circuit, no voltage expected.

B to gnd

5V ± 0.5

V REF check with KEY ON, if voltage not within spec., check V REF circuit for short to gnd or open.

C to gnd

<0.25V

If voltage is >0.25V, signal wire is shorted to V REF or battery

Connector Checks to Chassis Ground (check with sensor connector (1808) disconnected, positive battery cable disconnected and ignition key off)

Test

Spec.

Comments

A to gnd

<5Ω

Resistance to chassis ground, check with key off, > 5Ω the harness is open

B to gnd

>1kΩ

Resistance <1kΩ indicates a short to ground

C to gnd

>1kΩ

Resistance <1kΩ indicates a short to ground

Harness Resistance Checks (check with breakout box installed on chassis harness only)

Test

Spec.

Comments

11 to A

<5Ω

Resistance >5Ω indicates wires are open

3 to B

<5Ω

Resistance >5Ω indicates wires are open

29 to C

<5Ω

Resistance >5Ω indicates wires are open

Test (+) 29 to (-) 11

Operational Voltage Checks (check with breakout box installed in line with the ECM)

Voltage

in Hg

kPa

Comments

4.89

31.0905

105

High atmospheric pressure.

4.60

29.61

100

Normal atmospheric pressure at sea level.

2.60

17.766

60

Normal atmospheric pressure at 10,000 feet.

Diagnostic Trouble Code Description

151= Signal voltage was >4.95V for more than 1.0 sec.

152 = Signal voltage was <1.0V for more than 1.0 sec.

Ask Your Own Medium and Heavy Trucks Question
Technician: sevn103, Journeyman replied 5 years ago

this is to test the icp sensor

Injection Control Pressure (ICP) Sensor Voltage Checks (check with key-ON engine-OFF)

Install the 3 wire breakout tee between the ICP sensor and harness connector. View ICP VOLTAGE using the Continuous Monitor test found under the diagnostics menu in MASTER DIAGNOSTICS. If the circuit has an active fault according to the voltage level (Code124 <0.039V, Code 125 >4.9V, Code 332 >1.625V), complete the following steps. Tests must be performed in order.

Test Condition

Expected Voltage

Comments

Sensor Disconnected

0V

If voltage >0.039V, check signal circuit for short to V REF or B+.

Measure voltage from PIN B to gnd using a DMM.

5V ± 0.5

If voltage is >5.5V, check V REF for short to B+. If voltage is <4.5V, check V REF for open or short to Ground.

0.5 kΩ jumper installed between the GREEN and BLUE pins of the breakout tee.

5V

If voltage is <4.9V, check signal circuit for open circuit or short to ground. Remove positive battery cable. Measure resistance from PIN C to Ground (spec >500Ω) and from PIN C to PIN 16 (spec <5Ω) using a breakout box to determine if short to ground or open is in the harness.

Standard jumper installed between the BLUE, GREEN, and BLACK pins of the breakout tee.

0V

If voltage is >0.039V, check ground circuit for resistance. Measure resistance between PIN A and PIN 19 (spec <5Ω) using a breakout box to determine if resistance is in the harness.

Replace the sensor if the code is active and the expected results are obtained with all the sensor tests. The sensor is not at fault if one or more of the sensor tests does not produce the expected results. See ICP Sensor Troubleshooting Flowchart .

Continued on Next Page

OPERATIONAL VOLTAGE CHECKS

MD Voltage: Signal (GREEN tee) to gnd

Spec.

Check with breakout tee installed, key ON

Voltage

psi

Comments

0.15 to 0.3V

0

Atmospheric pressure with key-ON engine-OFF

1.0V

580

Minimum at engine cranking speed

0.74 - 0.81V

425 - 475

Normal warm low idle

3.33V

2550

Snap accel

Diagnostic Trouble Code Description

124 = Signal voltage was <0.039 volts for more than 1.0 sec.

125 = Signal voltage was >4.9 volts for more than 1.0 sec.

332 = Signal voltage was >1.625 volts, ignition key ON, engine OFF (1160 psi).

 


ICP Sensor Circuit Specifications

CONNECTOR VOLTAGE CHECKS (check with sensor disconnected from harness, key ON)

Test Points

Spec.

Comments

A to gnd

0V

Signal ground, no voltage expected

B to gnd

5±0.5V

If voltage not in spec., Vref circuit shorted to gnd or B+

C to gnd

<0.25V

If voltage > spec., wire shorted to Vref or B+

CONNECTOR CHECKS TO CHASSIS GROUND (check with sensor connector disconnected, positive battery cable disconnected, and key OFF)

Test Points

Spec.

Comments

A to gnd

< 5Ω

> 5Ω, indicates circuit is open

B to gnd

> 500Ω

< 500Ω, indicates short to ground

C to gnd

> 1kΩ

< 1kΩ, indicates short to ground

HARNESS RESISTANCE CHECKS (check with breakout box installed on chassis side only)

Test Points

Spec.

Comments

19 to A

<5Ω

If >5Ω indicates ground wire open

40 to B

<5Ω

If >5Ω indicates V REF wire open

16 to C

<5Ω

If >5Ω indicates signal wire open

Extended Description

Function

The International engine control system includes an Injection Control Pressure Sensor. The ECM measures the signal from the ICP sensor to determine the Injection Control Pressure as the engine is running to modulate the Injection Control Pressure Regulator. This is a closed loop function which means the ECM continuously monitors and adjusts for ideal Injection Control Pressure which is determined by operating conditions such as load, speed, and temperature.

The ECM monitors the ICP signal to determine if the performance of the hydraulic system is satisfactory. During engine operation, if the ECM recognizes that the pressure reading is lower or higher than the value that was commanded, the ECM will set a Diagnostic Trouble Code. This strategy is also used during the On Demand tests, commanded by the EST and referred to as the Engine Running tests.

Operation

The Injection Control Pressure Sensor is a variable capacitance sensor that is supplied with a 5V reference voltage at terminal B from ECM terminal 40. The ICP sensor is also supplied with a return circuit (ground) at terminal A from ECM terminal 19. The ICP sensor sends a signal from terminal C of the sensor to ECM terminal 16.

The ICP signal voltage changes in direct proportion to the injection control pressure.

ECM Diagnostics

The ECM continuously monitors the voltage signal of the ICP sensor to determine if the signal is within an expected range. If the signal voltage is higher or lower than expected, the ECM will set a Diagnostic Trouble Code. The ECM will then ignore the ICP sensor signal and will use a preset value determined by engine operating conditions. If the ignition key is shut off, the code will become inactive.

ICP Diagnostic Trouble Codes can be retrieved using the Electronic Service Tool (EST) or by reading the Diagnostic Trouble Code flashes from the amber and red ENGINE lamps, see .

If the ignition key is shut off, the code will become inactive. ICP codes will cause the ECM to illuminate the amber ENGINE lamp and the odometer to display the message WARN ENG.

Diagnostic Trouble Code 124

ATA Code, PID 164, FMI 4

ICP signal Out of Range LOW

When code 124 is active the amber ENGINE lamp is illuminated and the odometer displays the message WARN ENG.

An Out of Range LOW code 124 will be set by the ECM if the signal voltage is less than 0.039V for more than 1.0 seconds.

Diagnostic Trouble Code 124 may be set due to an open or short to ground on the signal circuit, a defective sensor or an open V REF circuit.

Diagnostic Trouble Code 125

ATA Code, PID 164, FMI 3

ICP Signal Out Of Range HIGH

When code 125 is active the amber ENGINE lamp is illuminated and the odometer displays the message WARN ENG.

An Out of Range HIGH code 125 will be set by the ECM if the signal voltage is greater than 4.9V for more than 1.0 seconds.

Diagnostic Trouble Code 125 may be set by an open return circuit (ground), short to a voltage source on the ICP signal circuit or a defective sensor.

Diagnostic Trouble Code 332

ATA Code, PID 164, FMI 13

Injection Control Pressure above Specification with Engine Off

When code 332 is active the amber ENGINE lamp is illuminated and the odometer displays the message WARN ENG.

Diagnostic Trouble Code 332 will be set by the ECM if the signal from the ICP sensor is higher than expected with the engine not running. If the ECM detects this fault, the ECM will ignore the ICP signal and will operate the IPR with fixed values determined from engine operating conditions.

Code 332 may be caused by a defective sensor or a biased circuit.

Ask Your Own Medium and Heavy Trucks Question
Ask sevn103 Your Own Question
sevn103
sevn103
sevn103, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 275
275 Satisfied Customers
Experience: dealer mechanic for over 14 yrs.

sevn103 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

2,139 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,151 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,495 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

1,974 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,195 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

770 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
I have a D6-C with a winch on it. The tag is off of it, if I
I have a D6-C with a winch on it. The tag is off of it, if I send some pictures can somebody identify it.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
I have a 2011 mack cxu613 mp8 getting codes: SA 0 SPN
I have a 2011 mack cxu613 mp8 getting codes : SA 0 SPN 1072/3675/647/4811/4813/1265. and all of them FMI 4 Only spn 4811 FMI 2 They come at once Red stop and yellow check engine light… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
Have a case jx75 need to remove inj. pump need info on how
have a case jx75 need to remove inj. pump need info on how to set crank position … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
Paccar MX13 14 KW T680 passive code has been popping up and
Paccar MX13 14 KW T680 passive code has been popping up and clear believe its the OAT sensor. But, this time it came up as Engine SPN 3556, still showing a mil light and issue on nav pro. But dash say… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
What can cause the Isuzu-npr-hd Box truck to to go into the
What can cause the Isuzu-npr-hd Box truck to to go into the regeneration cycle several times during a short trip. thanks … read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
I have a Cat D5G 2006. 2006 D5G LGP. ORKGO2298 Self I was
ORKGO2298 Self I was washing it the other day in - 30 … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,287 satisfied customers
I'm showing fault code 19 on my 2016 kenworth t680. 2016
I'm showing fault code 19 on my 2016 kenworth t680 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
1994 gmc c6000 topkick 6.0 366 at545 allison. Coming home
1994 gmc c6000 topkick 6.0 366 at545 allison. Coming home yesterday and turned into my driveway and it stopped moving. Turned off and started back up and it started in reverse. Got it back to the shop… read more
roy
roy
Associate Degree
3 satisfied customers
I have a JCB 212s backhoe loader and I need to find out what
I have a JCB 212s backhoe loader and I need to find out what fluid and how much I need for the front differential and how do I change it … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
Cat Man, have you ever heard of a problem in C-11 and C-13
Cat Man , have you ever heard of a problem in C-11 and C-13 Caterpillar engines called a "soft cam" ? Mechanic at Caterpillar told me this story as he handed me a $19,000 bill for replacing the beat u… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,151 satisfied customers
I have a cat c 15 acert that is getting hot what can cause
Hi yes i have a cat c 15 acert that is getting hot what can cause it? … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,151 satisfied customers
Cat C15 acert serial SDP18968. Kenworth T660. Vin#221528.
Cat C15 acert serial SDP18968. Kenworth T660. Vin#221528. Fault 1072-5 engine light on every time apply the engine break. Also it has rough running especially up hills. I can hear knock many time whil… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
Looking for a part #221024 control assembly low voltage cut
Looking for a part #221024 control assembly low voltage cut out … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,495 satisfied customers
I have 2009 century class Detroit 60 series check eng.and
I have 2009 century class Detroit 60 series check eng.and regen.light come too often.What is the main sensor for regeneration. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
Cat Man, I have a 2014 Cat truck that i need to connect to
Cat Man,I have a 2014 Cat truck that i need to connect to the engine. I was able to connect to a 13 awhile back with my international software but i cant on the 14 I have 2016 ET and it connected to t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,151 satisfied customers
I have a 2000 ford f650 with cummins 24v, has low power.
I have a 2000 ford f650 with cummins 24v, has low power. 3fdnf6543yma49006. has several active codes my scan tool cannot decipher, sid233 fmi12, sid251 fmi12, sid251 fmi 7. has new cummins lift pump. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,495 satisfied customers
How is the oil level checked in the drum of a bitelli
How is the oil level checked in the drum of a bitelli dtv189a? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,139 satisfied customers
I have a 2009 MaxxForce on my medium duty truck. I have two
I have a 2009 MaxxForce on my medium duty truck. I have two trucks with the same problem, excessive white smoke, fuel smell and I have already checked the egr coolers (no links), egr system and censor… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x