Injector Data Incorrect - Test
This procedure covers the following codes:
Show/hide table
Diagnostic Codes for Injector Data Incorrect | |||
J1939 Code | CDL Code | Code Description | Comments |
651-2 | 1-2 | Engine Injector Cylinder #01 : Erratic, Intermittent, or Incorrect | The Electronic Control Module (ECM) detects an injector code that is incorrect for the engine.
The warning lamp will come on. |
652-2 | 2-2 | Engine Injector Cylinder #02 : Erratic, Intermittent, or Incorrect | |
653-2 | 3-2 | Engine Injector Cylinder #03 : Erratic, Intermittent, or Incorrect | |
654-2 | 4-2 | Engine Injector Cylinder #04 : Erratic, Intermittent, or Incorrect | |
655-2 | 5-2 | Engine Injector Cylinder #05 : Erratic, Intermittent, or Incorrect | |
656-2 | 6-2 | Engine Injector Cylinder #06 : Erratic, Intermittent, or Incorrect |
The following background information is related to this procedure:
Injector codes are 30 hexadecimal character codes that are supplied with each injector. The code is on a plate on the top of the injector and a card is also included in the packaging for the injector. The code is used by the ECM to balance the performance of the injectors.
Refer to Troubleshooting, "Injector Code - Calibrate" for further information.
Show/hide table
Illustration 1 | g02131289 |
Typical code plate on an injector |
Show/hide table
Illustration 2 | g02132293 |
Sequence for recording the injector code |
During the following procedure, refer to the electrical schematic for the application.
Complete the procedure in the order in which the steps are listed.
Show/hide table
Troubleshooting Test Steps | Values | Results |
---|---|---|
1. Check for Active Diagnostic Codes A. Connect the electronic service tool to the diagnostic connector. B. Turn the keyswitch to the ON position. C. Check for active diagnostic codes or recently logged diagnostic codes. |
Diagnostic codes |
Result: No diagnostic codes are present. Return the unit to service. Result: One or more of the preceding diagnostic codes are active. Make a note of any cylinder numbers with the active diagnostic code. Proceed to Test Step 2. |
2. Check the Injector Code on any Suspect Cylinders A. Connect the electronic service tool to the diagnostic connector. Refer to Troubleshooting, "Electronic Service Tools". B. Turn the keyswitch to the ON position. C. Select the following menu options on the electronic service tool to obtain the injector codes from the ECM: · "Service" · "Calibrations" · "Injector Trim Calibration" D. Make a note of the injector codes for any suspect cylinders. |
Diagnostic code |
Result: The card that was supplied with the injector is available for the suspect cylinders. Repair: Compare the injector code from the card with the injector code that was recorded from the electronic service tool for each suspect cylinder. If the codes match, proceed to Test Step 3. If the codes do not match, then use the electronic service tool to input the code from the card. Result: The card with the injector code is not available. Proceed to Test Step 3. |
3. Manually Program the Injector Code A. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install". B. Make a note of the injector code that is on the injector in any suspect cylinders. Note: Refer to Illustration 2 for the correct sequence for recording the injector code. C. Compare the injector code from the injector with the injector code from the electronic service tool for each suspect cylinder. |
Injector codes |
Result: The code on the injector is the same as the code in the ECM. The injector is incorrect for the engine. Repair: Replace the injector with the correct injector for the engine. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove" and refer to Disassembly and Assembly, "Electronic Unit Injector - Install". Result: The code on the injector is not the same as the code in the ECM. Repair: Use the electronic service tool to input the correct injector code. Refer to Troubleshooting, "Injector Code - Calibrate" for the correct procedure. Use the electronic service tool to clear all logged diagnostic codes and then verify that the repair eliminates the fault. If the procedure did not correct the issue, contact the Dealer Solutions Network (DSN). |
Caterpillar Information System:
C7.1 Engines and Generator Sets Indicator Lamp Problem
C7.1 Engines and Generator Sets Idle Validation - Test
Diesel Exhaust Fluid (DEF) Pump Troubleshooting on Certain C4.4 Machine Engines {108J, 108K, 108T, 1901, 1920} Diesel Exhaust Fluid (DEF) Pump Troubleshooting on Certain C4.4 Machine Engines {108J, 108K, 108T, 1901, 1920}
New Injector Sleeve on Certain C4.4 and C7.1 Machine Engines {1254, 1290, 1713} New Injector Sleeve on Certain C4.4 and C7.1 Machine Engines {1254, 1290, 1713}
New Injector Sleeve on Certain C4.4 and C7.1 Engines {1254, 1290, 1713} New Injector Sleeve on Certain C4.4 and C7.1 Engines {1254, 1290, 1713}
Vibration Resonance May Cause A 105-15 Diagnostic Code To Activate On Certain C12.9 Marine Engines {1920, 1928} Vibration Resonance May Cause A 105-15 Diagnostic Code To Activate On Certain C12.9 Marine Engines {1920, 1928}
G3500H Generator Set Engine Engine Sensors
G3516 TA Engine General Information (Electronic Control System)
Pump Electronic Monitoring System for Well Stimulation Pumps Electrical Connectors - Inspect
Cat® VIMS Converter Functionality {7610, 7620} Cat® VIMS Converter Functionality {7610, 7620}
3512E and 3516E Marine Engines Exhaust Bypass Valve - Remove and Install
Installation and Removal of the 443-5682 Pressure Sensor Gp (In Cylinder Pressure Sensor) {1250, 1439, 1439} Installation and Removal of the 443-5682 Pressure Sensor Gp (In Cylinder Pressure Sensor) {1250, 1439, 1439}
C7.1 Engines and Generator Sets Injector Solenoid - Test
C7.1 Engines and Generator Sets Mode Selection - Test
C7.1 Engines and Generator Sets Motorized Valve - Test
A New NOx Reduction System Cooler Group and Water Lines Group Is Now Used on Certain C13 Tier 4 Engines {1061, 1087, 108C, 1380} A New NOx Reduction System Cooler Group and Water Lines Group Is Now Used on Certain C13 Tier 4 Engines {1061, 1087, 108C, 1380}
A New Flexible Coupling Group Used On Certain C175 Locomotive Engines {3252} A New Flexible Coupling Group Used On Certain C175 Locomotive Engines {3252}
New Software Is Now Used For Certain C9 Engines {1920} New Software Is Now Used For Certain C9 Engines {1920}
3512E and 3516E Marine Engines Auxiliary Water Pump - Remove
G3500H Generator Set Engine Fuel System Operation
New Software Is Now Used For Certain C15 Engines {1920} New Software Is Now Used For Certain C15 Engines {1920}
Fuel Level May be Reported Intermittently on Certain Cat® Products {7606} Fuel Level May be Reported Intermittently on Certain Cat® Products {7606}
3512E and 3516E Marine Engines Auxiliary Water Pump - Disassemble
3512E and 3516E Marine Engines Auxiliary Water Pump - Assemble