KISS Diagnostics Electrical System & Power Distribution Pack: 13 Diagnostic Cheat Sheets (HTML + Printer-Friendly PDF)

Low system voltage, a charging fault or a dead power relay can set off a string of unrelated-looking codes. 13 cheat sheets for voltage, generator, starter and power relay circuits, so you check the basics in the right order before chasing modules. Written by a licensed technician with 20 plus years in the bay.

WHAT'S INSIDE (13 sheets)

• System voltage unstable, low and high: P0561, P0562, P0563

• Starter relay circuit: P0615

• Generator control and field terminal circuits: P0620, P0622, P0625

• Charging system voltage low and high: P2503, P2504

• ECM / PCM power relay control and sense circuits: P0685, P0690

• Sensor reference voltage B circuit: P0651

• Malfunction indicator lamp control circuit: P0650

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.

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).