FRACCIONES ARANCELARIAS-ZOOSANITARIAS PARA EQUINOS

FMI 01 - Data is Valid But Data is Below Normal Operating Range.

FMI 02 - Erratic, Intermittent, or Incorrect Signal.

CORRECTIVE ACTION

STEP 1. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.

On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

STEP 2. Disconnect engine harness connector ENG-J202 from fuel pressure sensor (WP 0088, Figure 1, sheet 1 and FO-2, sheet 1).

STEP 3. Measure voltage between ENG-J202-A (+) and ENG-J202-B (-) of harness connector (WP 0088, Figure 2, sheet 1).

a. If voltage is not present, repair or replace harness (WP 0088). Verify the problem has been resolved.

b. If repairing wiring does not resolve fault, replace the fuel pressure sensor (WP 0098). Verify the problem has been resolved.

c. If voltage is not present between ENG-J202-A (+) and ENG-J202-B (-) proceed to STEP 3d.

d. Remove ENG-P2 from ECM and verify continuity between ENG-J202-C and ENG-P2-16 per FO-2, sheet 1.

(1) If continuity is not present, repair or replace harness (WP 0088). Verify the problem has been resolved.

(2) If the problem is not resolved, replace ECM (WP 0082).

STEP 4. Verify the problem is resolved.

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TROUBLESHOOTING USING GSC FAULT CODES - Continued

NOTE

This procedure is used for FMI codes 03 and 04 for all pressure sensors.

SYMPTOM

12. CID 94 E FMI 03 CID 94 E FMI 04

MALFUNCTION Fuel Pressure Sensor.

FMI 03 - Voltage Above Normal.

FMI 04 - Voltage Below Normal.

CORRECTIVE ACTION

STEP 1. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is OFF; DEAD CRANK SWITCH is OFF.

STEP 2. Inspect connectors ENG-P2 on the engine harness (FO-2, sheet 1) and ENG-P1 on the ECM to EMCP Harness (FO-2, sheet 2).

STEP 3. Conduct an appropriate pull test on wires in the ENG-P2 and ENG-P1 connectors to ensure wires are tight and secure.

STEP 4. Check the wires on both harnesses for abrasion and pinch points (WP 0088).

Repair and/or replace the connectors and/or wiring (WP 0088).

STEP 5. If necessary, disconnect the harness connectors, for the fuel pressure sensor, oil pressure sensor, turbo outlet pressure sensor, atmospheric pressure sensor, and turbo inlet pressure sensor.

STEP 6. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.

On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

STEP 7. Measure 5.0 +/- 0.2 Vdc between terminals A (supply) and B (return) at each sensor connector.

a. If 5.0 +/- 0.2 Vdc is not measured on all sensor connectors, remove ENG-P2 from ECM J2. Check for 5.0 +/- 0.2 Vdc on the pins for the bad sensor reading (WP 0088 and FO-2 Sheet 1). Verify continuity of the signal wire (pin C) for the suspect sensor connector.

b. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is OFF; DEAD CRANK SWITCH is set to OFF.

(1) If the voltage was present, repair/replace the ECM J2 engine harness (WP 0088).

(2) If the voltage was not present, replace the ECM (WP 0082).

c. Reconnect all of the sensor connectors.

d. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP. Retest the system.

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TM 9-6115-730-24 0009

TROUBLESHOOTING USING GSC FAULT CODES - Continued CORRECTIVE ACTION - Continued

e. If the problem is not resolved, proceed to STEP 8.

STEP 8. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is OFF. DEAD CRANK SWITCH is set to OFF.

STEP 9. Disconnect the connector from the defective sensor.

a. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

b. Check for a 03 diagnostic code.

c. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is OFF. DEAD CRANK SWITCH is set to OFF.

d. Connect a jumper wire and connect to pins B and C of the bad sensor connector.

e. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

f. Check for a 04 diagnostic code. If the correct code is present, the ECM is working OK. Replace the defective sensor (WP 0098).

g. If the diagnostic code remains 03, proceed to STEP 10.

STEP 10. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is OFF. DEAD CRANK SWITCH is set to OFF. Remove the jumper wire.

STEP 11. Replace the ECM (WP 0082) and retest the system. Verify the problem is resolved.

SYMPTOM

13. CID 96 E FMI 01 MALFUNCTION

High Fuel Pressure Warning.

FMI 01 - Data is Valid but Data is Below Normal Operating Range.

Event Code. Indicates that sensor detects a fuel system backup to cause high pressure warning.

CORRECTIVE ACTION

STEP 1. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.

On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

STEP 2. Press ALARM CODES on GSC keypad.

STEP 3. Check for associated alarm code and fault code and troubleshoot (WP 0008 and/or WP 0009).

STEP 4. If no fault code, inspect fuel filter and fuel/water separator per PMCS (WP 0016) and perform service as required.

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TROUBLESHOOTING USING GSC FAULT CODES - Continued SYMPTOM

14. CID 97 E FMI 01 MALFUNCTION Derate Overridden.

FMI 01 - Data is Valid but Data is Below Normal Operating Range.

Event Code. Engine derate overridden. Verify presence of fault.

CORRECTIVE ACTION

STEP 1. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.

On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

STEP 2. Press ALARM CODES on GSC keypad.

STEP 3. Check for logged fault code, troubleshoot, and correct (WP 0008 and/or WP 0009).

STEP 4. Verify the problem is resolved.

NOTE

The following failure indicates that GSC is unable to receive valid data about oil pressure from ECM.

SYMPTOM

15. CID 100 E FMI 02 MALFUNCTION Oil Pressure Sensor.

FMI 02 - Erratic, Intermittent, or Incorrect Signal.

CORRECTIVE ACTION

STEP 1. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect switch is OFF, DEAD CRANK SWITCH is OFF.

STEP 2. Inspect connectors ENG-P2 on the engine harness (FO-2, sheet 1) and P1 on the ECM to EMCP Harness (FO-2, sheet 2).

STEP 3. Conduct an appropriate pull test on wires in the ENG-P2 and ENG-P1 connectors to ensure wires are tight and secure.

STEP 4. Disconnect ENG-P2 from ECM J2, ENG-P201 from the oil pressure sensor, and ENG-P202 from the fuel pressure sensor. Verify continuity from ENG-P201-A to A and ENG-P2-2. Verify continuity from ENG-P201-B to ENG-P202-B and ENG-P2-3. Verify continuity from ENG-P201-C to ENG-P2-24.

STEP 5. Check the wires on both ENG-P1 and ENG-P2 harnesses for abrasion and pinch points (WP 0088).

STEP 6. If necessary, repair and/or replace the connectors and/or wiring (WP 0088).

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TM 9-6115-730-24 0009

TROUBLESHOOTING USING GSC FAULT CODES - Continued CORRECTIVE ACTION - Continued

STEP 7. Disconnect the harness connectors, for the fuel pressure sensor, oil pressure sensor, injection actuation sensor, turbo outlet pressure sensor, atmospheric pressure sensor, and turbo inlet pressure sensor.

STEP 8. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.

On EMCP turn the ENGINE CONTROL switch to COOL DOWN/STOP.

STEP 9. Measure 5.0 +/- 0.2 Vdc between terminals A (supply) and B (return) at each sensor connector.

If 5.0 +/- 0.2 Vdc is not measured on all sensor connectors, perform Electrical Connectors Wiggle Test (WP 0013, SYMPTOM 1).

STEP 10. If the problem is not resolved, replace the oil pressure sensor (WP 0098).

STEP 11. Retest the system. Verify that the problem has been cleared.

STEP 12 If the problem has not been resolved, replace ECM (WP 0082).

STEP 13. Retest the system and verify the problem has been resolved.

NOTE

The following failure is usually a broken wire, or a frayed wire shorting to an adjacent wire or to ground.

SYMPTOM

16. CID 100 E FMI 03 CID 100 E FMI 04

MALFUNCTION