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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
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Experience:  Owner at DJ Wilson
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SA 0 SPN 1569 FMI 31, SA 0 SPN 100 FMI 2 SA 0 SPN 27 FMI 2,

Customer Question

SA 0 SPN 1569 FMI 31
JA: Thanks. Can you give me any more details about your issue?
Customer: SA 0 SPN 100 FMI 2 SA 0 SPN 27 FMI 2
JA: OK got it. Last thing — Technicians generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 8 months ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 8 months ago.

Hi my name is***** will be glad to help. What is the complete engine model and serial number?

Expert:  Daniel Wilson replied 8 months ago.

CODE REASON EFFECT

Fault Code: 3714
PID: S115
SPN: 1569
FMI: 31
LAMP: Amber
SRT:

Engine Protection Torque Derate - Condition Exists. Critical fault codes related to engine operation are active.

Immediate engine power derate

Customer: replied 8 months ago.
Isx 500
Expert:  Daniel Wilson replied 8 months ago.

That first fault is informational only indicating the engine has been derated due to continued operation of a critical fault

Customer: replied 8 months ago.
N533631
Expert:  Daniel Wilson replied 8 months ago.

100 FMI 2 Engine Oil Rifle Pressure -Data Erratic, Intermittent, or Incorrect. Check the sensor and harness for problems or for actual oil pressure problems. Usually Data erratic is a sensor or harness problem

Expert:  Daniel Wilson replied 8 months ago.

Diagnostic Trouble Code 2272 – Cummins

Fault Code 2272: EGR Valve Position Circuit – Shortened to Low Source or Less Than Normal Voltage

Code Types

FAULT CODE 2272 PID 27 FMI 4 (SPN 27 FMI 4)

J1587 / J1708J1939OEM

MID 128SA 0

PID 27SPN 27Fault Code 2272

FMI 4FMI 4***** *****ght

Code Description

A voltage Signal is supplied to ECM by EGR valve position sensor and ECM converts this signal into a percentage value (0 to 100 percent) that indicates EGR valve position.

NOTE:100 percent indicates a fully open valve.

EGR valve position sensor shares engine harness supply and return wires with other sensors. Multiple fault codes may log due to open and short circuits in engine harness.

PID 27 FMI 4 (Fault Code 2272) may be logged due to open or shorted signal circuit to ground, open or shorted Supply circuit to ground, and sensor shorted to ground.

CAUTION:Before replacing ECM, inspect all other active fault codes to avoid damage to NEW ECM.

CAUTION:Use Male Deutsch/AMP/Metri-Pack (3822758) and Female Deutsch/AMP/Metri-Pack (3822917) while taking electrical measurements to prevent damage to terminal and harness.

Cause

EGR valve position circuit shorted to low source or has less than normal voltage. ECM suspects low Signal voltage at EGR valve position sensor circuit.

Effect

Loss of power. Power supply to EGR valve motor will be removed.

Component Location

EGR valve position sensor is mounted on EGR valve assembly.

Testing

1: Inspect Fault Codes

1A: Inspect For Sensor Supply Fault Codes

Condition: Turn ON ignition switch. Connect scan tool.

Action: Inspect for sensor supply fault codes. Start and idle engine for 60 seconds. View fault using Scan Tool.

Specification: SID 211 FMI 4 (Fault Code 187) active?

Repair:

If okay, see troubleshooting tree for SID 211 FMI 4 (Fault Code 187) .

If not okay, troubleshoot SID 211 FMI 4 (Fault Code 187), then inspect if an active fault code is present

1B: Inspect For An Active Fault Code

Condition: Turn ON ignition switch. Connect scan tool.

Action: Start and idle engine for 60 seconds and read fault code using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) active?

Repair:

If okay, then inspect for associated fault codes.

If not okay, then inactive or intermittent fault code .

1C: Inspect For Associated Fault Codes

Condition: Turn ON ignition switch. Connect scan tool.

Action: Inspect for active or inactive fault codes. View codes using Scan Tool.

Specification: PID 27 FMI 13 (Fault Code 2348), SID 146 FMI 5 (Fault Code 2349), SID 146 FMI 4 (Fault Code 2351), SID 146 FMI 3 (Fault Code 2352), SID 146 FMI 6 (Fault Code 2353), or SID 146 FMI 7 (Fault Code 2357) active or inactive?

Repair:

If okay, then disable fault code.

If not okay, replace EGR valve assembly, then inspect engine harness & sensor connector terminals.

2: Inspect EGR Valve Position Sensor And Circuit

2A: Inspect Engine Harness And Sensor Connector Terminals

Condition: Turn OFF ignition switch. Disconnect EGR valve position sensor from engine harness.

Action: Inspect engine harness and sensor connector terminals for:

  • Bent or broken terminals
  • Broken connector shell shroud
  • Damaged connector locking tab.
  • Damaged terminals
  • Damage to wire insulation
  • Dirt or debris in or on connector terminals
  • Loose connection
  • Moisture in or on connector
  • Missing or damaged connector seals
  • Pushed back or expanded terminals

Specification: Dirty or damaged terminals?

Repair:

If okay, then disable fault code.

If not okay, clean connector and terminals. Repair damaged harness, connectors, or terminals as needed, then inspect EGR valve position sensor supply & return circuit at engine harness.

2B: Inspect EGR Valve Position Sensor Supply And Return Circuit At Engine Harness

Condition: Turn OFF ignition switch. Disconnect EGR valve position sensor from engine harness. Turn ON ignition switch.

Action: Inspect EGR valve position sensor Supply and Return circuit at engine harness. Take a voltage measurement between EGR valve position +5-Volt DC Supply terminal to EGR valve position Return terminal at engine harness sensor connector.

Specification: 4.75-5.25 Volt dc?

Repair:

If okay, then inspect circuit response.

If not okay, then inspect engine harness & ECM connector terminals.

2C: Inspect Circuit Response

Condition: Turn OFF ignition switch. Disconnect EGR valve position sensor from engine harness. Turn ON ignition switch and connect electronic service tool.

Action: To inspect circuit response, insert a jumper wire between EGR valve position +5-Volt DC Supply terminal and EGR valve position signal terminal at engine harness sensor connector.

Confirm fault codes become inactive using Scan Tool view code.

Specification: PID 27 FMI 4 (Fault Code 2272) inactive and PID 27 FMI 3 (Fault Code 2271) active?

Repair:

If okay, then inspect fault codes & confirm condition of sensor.

If not okay, then inspect engine harness & ECM connector terminals.

2D: Inspect Fault Codes And Confirm Condition of Sensor

Condition: Turn OFF ignition switch. Connect EGR valve position sensor to engine harness. Turn ON ignition switch. Connect scan tool.

Action: Inspect for appropriate circuit response after 1/2 minute. View fault codes using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) active?

Repair:

If okay, sensor has failed. Replace EGR valve position sensor , then disable fault code.

If not okay, problem is solved by connector removal and installation procedure, then disable fault code.

3: Inspect ECM And Engine Harness

3A: Inspect Engine Harness And ECM Connector terminals

Condition: Turn OFF ignition switch. Disconnect engine harness from ECM.

Action: Inspect engine harness and ECM connector terminals for:

  • Bent or broken terminals
  • Broken connector shell shroud
  • Damaged connector locking tab.
  • Damaged terminals
  • Damage to wire insulation
  • Dirt or debris in or on connector terminals
  • Loose connection
  • Moisture in or on connector
  • Missing or damaged connector seals
  • Pushed back or expanded terminals

Specification: Dirty or damaged terminals?

Repair:

If okay, then disable fault code.

If not okay, clean connector and terminals. Repair damaged harness, connectors, or terminals, then inspect sensor supply voltage & return circuit.

3A-1: Inspect Sensor Supply Voltage And Return Circuit

Condition: Turn OFF ignition switch. Disconnect engine harness from ECM. Turn ON ignition switch.

Action: Inspect sensor Supply voltage and Return circuit at ECM. Take voltage measurement between EGR position +5 Volt DC Supply terminal to EGR position Return terminal at ECM port.

Specification: 4.75-5.25 Volt dc?

Repair:

If okay, then inspect if an inactive fault code is present.

If not okay, replace electronic control module (ECM) . Call for pre-authorization, then disable fault code.

3A-2: Inspect If An Inactive Fault Code Is Present

Condition: Connect all components. Turn ON ignition switch. Connect electronic service tool.

Action: Inspect for appropriate circuit response after 1/2 minute. View fault codes using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) inactive?

Repair:

If okay, problem is solved with connector removal and installation procedure, then disable fault code.

If not okay there is an open or shorted supply circuit in engine or EGR valve extension harness. Repair/replace appropriate harness, then disable fault code.

3B: Inspect Engine Harness And ECM Connector Terminals

Condition: Turn OFF ignition switch. Disconnect engine harness from ECM.

Action: Inspect engine harness and ECM connector terminals for:

  • Bent or broken terminals
  • Broken connector shell shroud
  • Damaged terminals
  • Damage to wire insulation
  • Dirt or debris in or on connector terminals
  • Loose connection
  • Moisture in or on connector
  • Missing or damaged connector seals
  • Pushed back or expanded terminals

Specification: Dirty or damaged terminals?

Repair:

If okay, then disable fault code

If not okay, clean connector and terminals. Repair damaged harness, connectors, or terminals, then Inspect ECM Response.

3B-1: Inspect ECM Response

Condition: Turn OFF ignition switch. Disconnect engine harness from ECM. Turn ON ignition switch and connect electronic service tool.

Action: Inspect ECM response. Insert a jumper wire between EGR valve position +5 Volt DC supply terminal and EGR valve position signal terminal at ECM port.

Inspect for appropriate ECM response after 1/2 minute. View fault codes using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) inactive and PID 27 FMI 4 (Fault Code 2271) active?

Repair:

If okay, then inspect if an inactive fault code is present.

If not okay, replace electronic control module (ECM) , then disable fault code.

3B-2: Inspect If An Inactive Fault Code Is Present

Condition: Connect all components. Turn ON ignition switch. Connect electronic service tool.

Action: Inspect for appropriate circuit response after 1/2 minute. View fault codes using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) inactive?

Repair:

If okay, then disable fault code.

Problem is solved with connector removal and installation procedure.

If not okay, engine or EGR valve extension harness has an open or shorted supply circuit. Repair/replace appropriate harness, then disable fault code.

4: Clear Fault Codes

4A: Disable Fault Code

Condition: Connect all components. Scan Tool. Turn ON ignition switch.

Action: Disable code. Start and idle engine for 60 seconds, read fault code using Scan Tool.

Specification: PID 27 FMI 4 (Fault Code 2272) inactive?

Repair:

If okay, then clear inactive fault codes.

If not okay, review troubleshooting steps, then inspect for sensor supply fault codes.

4B: Clear Inactive Fault Codes

Condition: Connect all components. Connect scan tool. Turn ON ignition switch.

Action: Clear inactive codes using electronic service tool.

Specification: All faults cleared?

Repair:

If okay, repair complete.

If not okay, see appropriate troubleshooting steps. Troubleshoot active fault codes.

Click here for the reference link

Link

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