C27 and C32 Engines for Caterpillar Built Machines Caterpillar

ECM Does Not Communicate with Other Modules

Usage:

990K DJK

Kemungkinan Penyebab

Modul Kontrol Elektronik (ECM, Electronic Control Module)

Daya ke ECM

Data Link

Masalah di sirkuit untuk Cat Data Link atau CAN data link

Konektor Listrik

Pemasangan konektor listrik

Tindakan yang Direkomendasikan

Daya ke ECM

Periksa daya ke ECM. Rujuk ke Pemecahan Masalah, "Catu Daya Listrik - Pengujian".

Sambungkan Caterpillar Electronic Technician (ET) ke konektor alat servis. Jika ECM tidak berkomunikasi dengan Cat ET, rujuk ke servis Pemecahan Masalah, "Alat Servis Elektronik Tidak Berkomunikasi".

Masalah di Sirkuit untuk Cat Data Link atau CAN Data Link

Verifikasikan bahwa data link tidak memiliki sirkuit terbuka atau hubung-singkat. Rujuk ke pengujian sirkuit Pemecahan Masalah, "Data Link - Pengujian" dan Pemecahan Masalah, "Status Konfigurasi Data Link - Pengujian".

Pemasangan Konektor Listrik

Periksa apakah pemasangan konektor ECM J1/P1 dan J2/P2 benar. Periksa apakah pemasangan semua konektor relevan lainnya benar. Rujuk ke Pemecahan Masalah, "Konektor Elektrik - Inspeksi" untuk informasi yang terkait dengan masalah kelistrikan yang bersifat intermiten.

Caterpillar Information System:

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