Controller 10R-8112 582-6895 For CAT 312D 315D 320D Excavator C4.4 C6.6 Engine ECM
20R-5038 ，20R8825 ，20R8220，20R-6471，20R8192，10R-5645，20R8190 ，348-2390，172-9387，3709478，569-8638，
285-1133，512-5720 20r-2320, 592-5153, 20R-1766, 20R1834, 20R-6112, 20R-3745, 20R-8183, 20R-6911, 20R-8188,
20R-5037,20R-8876, 20R-8877, 10R-4088, 348-2387
10R-4087,20R-6537,10R-5895, 20R-4092,
20R-8186, 10R-9540 ,20R-4091, 11R-1267,
11R-0333,11R-0332,348-2387 10R-8105 11R-0331 543-1326 284-8906, 348-2378, 172-9391,252-4501 , 607-2612，494-6473，
488-4886，620-0991，20R-5147 ，20R-3749，211-5544，192-1590，10R-9537，10R-5641，20R-5039，20R-2320，
20R-8457，20R-8456，20R-8604，10R-8104，20R-4408 ，20R-8443，470-8027
10R5644，304-5687，10R-5613 20R-4709 ， 20R-4706 ，20R-3740
20R-8608 20R-9456,20R-4091,10R-9540,
10R-8111,11R-1274 ,582-6895, 386-1377, 391-7036,190-6470,
307-7541,596-2732,166-6928,592-5153,592-5150, 11R-1270 ，10R-8148，30R-0057，20R-1833，10R-9402，11R-1568，20R-7218，
20R-8179，20R-6912，
The replacement of the original ECM must strictly follow the Caterpillar repair specifications, otherwise it may damage the engine:
1. * * Backup the original ECM parameters**
-Using Cat ® ET (Electronic Technician) prints configuration parameters and records the injector serial number and calibration code (must be reprogrammed after replacing the injector or ECM).
2. * * Copy the configuration to the new ECM**
-Select 'Copy Configuration/ECM Replacement' → 'Load from ECM' → 'Program ECM' through ET. If it fails, manual input of parameters is required (some parameters need to be obtained from the factory).
3. * * Precautions for Hardware Replacement**
-Disconnect the power supply and J1/P1, J2/P2 connectors;
-Ensure that the grounding strap is securely installed to avoid poor contact caused by vibration;
-The fuel pipeline needs to reserve buffer space to prevent pulling the ECM.
4. * * Software and Calibration**
-Install the latest flash file (version errors can cause engine damage);
-Calibrate the fuel injection timing and check for diagnostic codes (such as CID 0600 hydraulic oil temperature sensor abnormality).
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### ⚠ ** 4、 Usage and maintenance suggestions**
1. * * Regular diagnosis**
-Using Cat ® ET or Messenger reads the fault code (such as CID 0246 CAN bus abnormality for MID 082) and promptly cleans the sensor dirt.
2. Environmental and oil requirements**
-Use clean diesel with a filtration accuracy of ≤ 5 μ m to prevent clogging of precision components;
-The working temperature should be ≤ 26 ℃ to avoid ECM component aging caused by high temperature.
3. * * Preventive maintenance**
-Calibrate rail pressure sensors and flow meters every six months;
-Check the waterproof sealing of the wiring harness, especially in high humidity environments such as mines and ships.
4. * * Fault response**
-Symptoms of ECM failure: sudden power drop, shaking and stalling, black smoke emission.
-Emergency plan: Immediately shut down the machine, check the power supply and grounding;
