System Hub 33 Fault Families 1,227 SAE Codes

Network System

What this hub covers

Every fault family whose codes set on the Network module or one of the sensors and actuators it controls. Each entry below is one authored fault family; open it for the diagnostic explanation and the full list of codes it covers.

Fault families in the Network system (33)

Lost Comm Powertrain Module · 199 Software Incompatibility Module · 80 Invalid Data Powertrain Module · 79 Vehicle Comm Bus Lettered Fault · 76 Lost Comm EV Charging Module · 66 Control Module Power Ignition Input · 57 HV Interlock Circuit Fault · 56 Lost Comm Seat Door Module · 50 Invalid Data Seat Door Module · 46 Fuel Cell Stack Sensor Actuator Circuit · 46 Invalid Data EV Charging Module · 45 Lost Comm ADAS Camera Radar Module · 42 Invalid Data ADAS Camera Radar Module · 42 Lost Comm Chassis ABS Module · 32 Invalid Data Chassis ABS Module · 30 Lost Comm HVAC Module · 29 Lost Comm Infotainment Module · 27 Invalid Data Infotainment Module · 27 Lost Comm Body Module · 24 Invalid Data Body Module · 24 Lost Comm Restraints Module · 21 Invalid Data Restraints Module · 21 Lost Comm Lighting Module · 14 Invalid Data Lighting Module · 14 CAN Bus Off Fault · 13 Lost Comm Instrument Display Module · 11 Invalid Data Instrument Display Module · 11 Control Module Network Wakeup Fault · 10 HS CAN Bus Fault · 9 MS CAN Bus Fault · 9 LS CAN Bus Fault · 9 Invalid Data HVAC Module · 5 Control Module Network Authentication Fault · 3

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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License OEM Complete · $149 Standard (SAE only) · $49

$49 Standard: 9,249 SAE codes · $149 OEM Complete: all 15,886 codes, including 6,637 OEM codes across 32 makes · $149 Heavy Duty: 4,212 fault pairs (J1939) · one-time · compare tiers