Electricidad

CTCOMAPP.XLS Nov 29, 1999 Revision Number 14 Overview:

Common Approach To Diagnostics Using Calterm
Please Forward Suggestions For Improvement To: Wayne Eberhard / Richard Croft

Where to find CTCOMAPP.XLS CTC LAN: N:\Methods\Apps\CTCOMAPP.XLS Intranet: http://www.ctc.cummins.com/hdac "methods"

This document is intended as an aid to diagnosing customer complaints on-site. Calterm is anexcellent tool to define and document customer complaints. We wish to develop and document tests/procedures to support in-field efforts. We have gathered from various sources the ideas on how to collect the best data to define the conditions associated with a reported symptom. With this method of Calterm test parameter method-sharing, we will obtain more detailed definition of engine conditionsassociated with the specific issues. This info, combined with driver comments and concerns, will aid in achieving better responsiveness to customer needs. ....Wayne / Richard FOLLOWING INDEX IDENTIFIES CURRENTLY AVAILABLE TEST PARAMETER LISTS For: Phase 5 (1994) CELECT ECM-B, Phase 3, 4 (CELECT Plus) ECM-C,

Purpose:

and Phase 8, 9 CM570

1. Hard Starting / Startup & Overshoot 1A. ColdStarting 2. Clutch Engagement / Idle Overshoot 3. Throttle Instability / Surge / Vibration a. Min/Max (Automotive) b. All Speed (VS) 4. Cruise Control / Road Speed / Geardown Gov'r 4a. Cruise Control with Engine Brakes 4b. Cruise Control with AutoResume 5. Engine Braking 6. Low Power a. Roadspeed Governor b. Geardown Protection 7. Duty Cycle Logging Of Mission 8. Throttle Characterization / IdleValidation Switch 9. Idle Stability / Rough Idle 10. PTO Response / Stability 11. Low Power : Boost Response Test 12. No-Load Friction / TVO *OR* Light Load Throttle 13. Turbo Surge 14. ESP Performance (Hill Climb) 15. VSS Anti-Tampering 16. Acceleration Noise Control 17. Cold Stumble Wet Stacking (IMT Advance) Timing 18. Roadspeed Govr / Cruise Control Dropout 19. EPS Hiccup 20. High Speed GovernorStability 21. Stumble during rapid accel - AFC Related 22. Ambient Air Pressure Sensor - Poor Engine Performance 23. Progressive Shift 24. J1992 Remote Throttle - Torque Control 25. Bus Idle / Transmission Stall 26. Stationary Engine Brake Delay Test 27. Cylinder Pressure Maintenance Investigation 28. Eaton Top 2 29. Vocational ESP 30. 4-Step Wastegate

31. Smart Air Compressor 32. Fan Drive /Activation 33. ECM Trip Info / Fuel Economy Accuracy 34. Datalink Torque Calculations 35. Integrated Centinel (CORS) 36. Starter Lockout 37. Smart Fan Control 38. Driver Reward 39. Anti - Theft 40. Programmable Power/Engine Performance Rating 41. Cab Switchable Governor 42. Cylinder Balance Diagnostics 43. Unintended Fueling Diagnostics - Apex Only 44. Powertrain Protection 45. Smart Road SpeedGovernor 46. Eaton Autoshift/Other J1939 Devices 47. Highway Cruise Strategy Data Collection - ALPHA Determination 48. ICON Diagnostics 49. Automatic Transmission (Powershift/Torque Converter)

Additional Problems Not Supported As Yet: Your suggestions appreciated, either in suggesting more problems, or better still, a definition of parameters to support diagnosis of one or more of the belowlisted problem situations: Fast Idle - ISX/Signature Fuel Inlet Restriction Eaton Vorad Traction Control J1939 Diagnostics Anti-Lock Braking Cooling System Fan Cycling / Overheating Engine Protection Autoshift Diagnostics Engine Brake Torque Derate Real-Time Clock

Cummins Confidential == Internal Use Only

ctcomapp_rev14.xls

Cummins Confidential - Page 1

WWE - Common Approach

1. HardStarting / Startup & Overshoot ECMB: Record AIR_TEMP, COOL_TMP, OIL_TEMP, LSIDLRPM ECMC: Record COOLTEMP, OIL_TEMP, INTTMP, LSBPRFES Ph 5 ECM-B --------------RPM (Filtered Engine Speed) | .1 sec TVO | use extra harness + OILPRESS (RAIL PRESSURE) | extra transducer into | compuchek fitting CM570: Record LSBPRFES CELECT Plus ECM-C --------------ENGRPM TVO OIL_PRES or CSERCU cam synch CM570...