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134-6553 Controller ECU for 120H 140H Motor Grader

134-6553 Controller ECU for 120H 140H Motor Grader
134-6553 Controller ECU for 120H 140H Motor Grader 134-6553 Controller ECU for 120H 140H Motor Grader 134-6553 Controller ECU for 120H 140H Motor Grader 134-6553 Controller ECU for 120H 140H Motor Grader
기본 정보
원래 장소: 중국
브랜드 이름: Jiajue
모델 번호: 120H 140H
최소 주문 수량: 1PC
가격: $800/pc
포장 세부 사항: 134-6553 120H 140H 모터 그레이더용 컨트롤러 ECU는 고객 요구 사항에 따라 표준 수출 포장으로 포장됩니다.
배달 시간: 1-5 근무일
지불 조건: L/C,D/A,D/P,T/T,웨스턴 유니온
공급 능력: 100pcs/월
최고의 가격 지금 연락
상세 정보
제품명: 134-6553 120H 140H 모터 그레이더용 컨트롤러 ECU 재료: 강철
원래 장소: 중국 광동 MOQ: 1
OEM: 지원하다
강조하다:

134-6553 ECU Controller for 120H Motor Grader

,

140H Motor Grader ECU Controller

,

Heavy Equipment ECU Controller with Warranty

제품 설명

Controller ECU for 120H/140H Motor Grader
High-quality replacement Controller ECU (Part Number: 134-6553) designed for Caterpillar 120H and 140H Motor Graders. This used component offers reliable performance and is available from rich stock for quick delivery.
Product Specifications
Product NameController ECU
Part Number134-6553
Brand NameJIAJUE
Compatible Models120H/140H
ConditionUsed
AvailabilityRich Stock
Approximate Weight2.5KG
Size (per unit)20cm x 18cm x 15cm
Delivery TimeUsually delivered within 1-3 days after payment
Product Images
134-6553 Controller ECU for 120H 140H Motor Grader 0 134-6553 Controller ECU for 120H 140H Motor Grader 1 134-6553 Controller ECU for 120H 140H Motor Grader 2 134-6553 Controller ECU for 120H 140H Motor Grader 3
Frequently Asked Questions
Installation Time for ECM on Machine
Physical Installation: 15-30 minutes. The unit is typically secured by 4 bolts on the cool side of the engine.
Programming & Testing: 30-60 minutes.

Pro Tip: If the ECM is pre-programmed by us based on your machine's serial number, it is essentially "Plug & Play." If not, you will need a Cat ET (Electronic Technician) tool to flash the software, which takes additional time. We recommend professional installation to ensure correct parameter synchronization.
Determining ECM Fault and Replacement Need
  • The ET diagnostic tool cannot communicate with the ECM, or it displays a "Module Not Responding" error. This is a critical sign of internal hardware failure.
  • Active fault codes related to internal memory (EEPROM) or voltage reference issues that persist after checking the wiring harness often indicate ECM failure.
  • Sudden engine stalling, severe power loss (Limp Mode), or persistent misfiring (missing injector driver signals) after sensors and harnesses have been ruled out.
  • Visible signs of overheating (burning smell), water ingress, corrosion, or broken pins on the connector headers.
Step-by-Step Testing Guide
Pro-Tip: HEUI (Hydraulic Electronic Unit Injection) systems are extremely sensitive to contamination. A single speck of dust can cause premature failure.
  1. Prepare: Ensure the excavator is turned off and safely secured. Disconnect the battery to avoid electrical accidents.
  2. Inspect: Check the ECU for physical damage or loose connections.
  3. Connect Diagnostic Tool: Use a diagnostic tool recommended by the excavator's manufacturer. Connect it to the ECU according to the tool's instructions.
  4. Read Codes: Use the diagnostic tool to read any error codes (DTCs) stored in the ECU. These codes indicate potential problems with the ECU or connected systems.
  5. Check Live Data: View live data parameters such as sensor readings and system voltages. Ensure they are within normal ranges.
  6. Functional Tests: If possible, perform tests to activate components or simulate sensor inputs. Verify that the ECU responds correctly without delays or errors.
  7. Reset (if needed): Reset the ECU if recommended by the manufacturer, especially after repairs or replacements.
  8. Document: Keep a record of all tests, codes, and results for future reference.
Quick Checklist for Buyers: Before replacing the ECM, always check the fuses, main relays, and ground connections. In many cases, a faulty ground wire or low battery voltage mimics an ECM failure.
Business Information
Payment Methods: T/T, L/C, PayPal, etc.
Stock Availability: Rich stock available.
Order Shipping: When the goods ship, we will share the tracking number. For sea or air freight, we can provide the bill of lading.
Company & Facilities
134-6553 Controller ECU for 120H 140H Motor Grader 4 134-6553 Controller ECU for 120H 140H Motor Grader 5 134-6553 Controller ECU for 120H 140H Motor Grader 6
Packaging & Shipping
134-6553 Controller ECU for 120H 140H Motor Grader 7 134-6553 Controller ECU for 120H 140H Motor Grader 8

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