Diagnostic Codes
Usage:
Some trucks may have electronic dashboards that provide a direct readout of 3406C (PEEC III) engine diagnostic codes. Follow the instructions on the previous page to obtain engine diagnostic codes.
The following is a list of 3406C (PEEC III) diagnostic codes and their descriptions:
For a complete explanation of each diagnostic code, see and follow troubleshooting procedures in Electronic Troubleshooting, 3406C (PEEC III) Diesel Truck Engine, Form No. SENR5503.
Caterpillar Information System:
3406C (PEEC III) TRUCK ENGINE Faults Without Throttle Response
3406C (PEEC III) TRUCK ENGINE Faults With Throttle Response
3406C (PEEC III) TRUCK ENGINE Using The Check Engine Light To Check For Diagnostic Codes
3406C (PEEC III) TRUCK ENGINE 3406C (PEEC III) System Operations
3406C (PEEC III) TRUCK ENGINE J14 Connector Tests (Vehicle Speed Buffer)
3406C (PEEC III) TRUCK ENGINE J11 Connector Tests (Throttle Position Sensor)
3406C (PEEC III) TRUCK ENGINE P7 Connector Tests (Vehicle Connector)
3406C (PEEC III) TRUCK ENGINE Operational Problem Chart
3406C (PEEC III) TRUCK ENGINE Location of 3406C (PEEC III) Truck System Connectors
3406C (PEEC III) TRUCK ENGINE Correct Wiring of Vehicle Speed Sensor
3406C (PEEC III) TRUCK ENGINE Visual Inspection and Repair of Connectors
3406C (PEEC III) TRUCK ENGINE Responsibility for Throttle Pedal Adjustment
3406C (PEEC III) TRUCK ENGINE 3406C (PEEC III) Component Warranty and Programming Responsibility
3406C (PEEC III) TRUCK ENGINE 3406C (PEEC III) System Wiring Diagram
3406C (PEEC III) TRUCK ENGINE 3406C (PEEC III) OEM Related Wiring Schematic
3406C DIESEL TRUCK ENGINE Introduction
3406C DIESEL TRUCK ENGINE Engine Design
3406C DIESEL TRUCK ENGINE Fuel System Identification
3406C DIESEL TRUCK ENGINE Fuel Injection Lines
3406C DIESEL TRUCK ENGINE Fuel Injection Nozzle And Adapter
3406C DIESEL TRUCK ENGINE Fuel Transfer Pump
3406C DIESEL TRUCK ENGINE Fuel Injection Pump
3406C DIESEL TRUCK ENGINE Fuel Injection Pump Housing
3406C DIESEL TRUCK ENGINE Governor