Caterpillar 3406B/3406C PEEC (Programmable Electronic Engine Control) Troubleshooting Field Guide

Caterpillar 3406B/3406C PEEC Troubleshooting Field Guide

This is an 85-page compiled troubleshooting field guide covering the PEEC (Programmable Electronic Engine Control) system used on the Caterpillar 3406B (engine prefixes 8TC, 5YG, 2EK) and 3406C (engine prefix 4CK). It organizes common PEEC failure patterns and points to the relevant official Caterpillar reference publications for deeper procedures.

What's Covered

• PEEC system overview (PEEC I, PEEC II, PEEC II.V generations)
• Common problems - timing advance failures, speed burps/engine surge, intermittent engine shutdowns, low power/restricted RPM
• PEEC electronic component failure diagnosis - BTM, rack/timing sensors, shutoff solenoid, transducer module, engine speed sensor, ECM/personality module
• Other problems - cold mode (8TC), cold start problems, parameter programming/boost sensor calibration/fault code 48, repeat shutoff solenoid failures
• Current parts cross-reference lists by PEEC generation and engine prefix (ECM, transducer module, speed sensor, rack sensor, timing sensor, BTM, throttle position sensor, oil pressure sensor kit)

Delivered as an instant digital PDF download.