KISS Diagnostics CAN Bus & Module Communication Pack: 19 Diagnostic Cheat Sheets (HTML + Printer-Friendly PDF)

A wall of U-codes usually points to one root fault, not ten bad modules. 19 cheat sheets for network faults, lost communication codes and control module internals, so you find the break in the network before you start swapping parts. Written by a licensed technician with 20 plus years in the bay.

WHAT'S INSIDE (19 sheets)

• PCM internal faults: P0601 memory checksum, P0606 processor

• High speed CAN bus faults: U0001, U0002, U0003, U0004, U0073 (bus off)

• Lost communication with ECM/PCM and TCM: U0100, U0101

• Lost communication with the battery energy control module: U0111

• Lost communication with ABS, multi-axis acceleration and steering angle modules: U0121, U0125, U0126

• Lost communication with the body control module: U0140, U0141

• Lost communication with restraints control, instrument cluster and radio: U0151, U0155, U0184

• Control module software incompatibility: U0300

ON EVERY SHEET: step-by-step diagnostic flowchart · most common causes ranked by estimated likelihood · professional tips · reference table of normal vs failed readings · related codes · safety warnings. 17 of the 19 sheets also include a waveform reference showing a normal and a faulty signal pattern.

HOW YOU GET IT: one zip, instant download after payment. Every sheet comes in two formats: HTML (any browser, phone, tablet or computer) and a printer-friendly PDF. Generic SAE codes that apply across makes. Prices in USD. Digital product, all sales final (see FAQ).