Fault Code Guide

J1939 SPNs for Bulkhead Module (BHM) SA 33
SPN Description Possible FMI
6976 Washer Pump Output Fault 5, 6
6977 Multifunction Turn Signal Switch Washer Switch Input Fault 2
6978 Multifunction Turn Signal Switch Right Turn Signal Input Fault 2
6979 Multifunction Turn Signal Switch Left Turn Signal Input Fault 2
6980 Right Stop Lamp Output Fault 5, 6
6981 Left Stop Lamp Output Fault 5, 6
6982 Wake Up Hardware Fault 5, 6
6983 Starter Relay (mag switch) Output Fault 5, 6
6984 Ignition System, Accessory Power Outputs Fault 5, 6
6985 Ignition System, Ignition Power Outputs Fault 2, 5, 6
6986 Ignition Switch Fault 7
6987 Taillights, Clearance Lights, License Plate Lights Output Fault 5, 6
6988 Left Low Beam Output Fault 5, 6
6989 Right Low Beam Output Fault 5, 6
6990 Left High Beam Output Fault 5, 6
6991 Right High Beam Output Fault 5, 6
6992 Multifunction Turn Signal Switch High Beam Input Fault 2
6993 Headlamp Switch Disagreement–Both park and on inputs are closed. 7
6994 ICU3-M2 Hazard Switch CAN Feedback Error 19
6995 Horn Output Fault 3, 4, 5, 6
6996 Dome Lamps Switched Power Output Fault 5, 6
6997 Cigar Lighter Output Fault 3, 4, 5, 6
6998 Dome Lamps Battery Power Output Fault 5, 6
6999 Backup Lamps/Alarm Output Fault 5, 6
7000 Panel Lamp Backlighting PWM Output Fault 3, 4, 5, 6
524280 Component ID Mismatch 31
524281 Application to Parameter Incompatibility 31
524282 Parameter Checksum Failure 12
524283 Application Checksum Failure 12
524284 Boot Block Checksum Failure 12
524285 Boot Hold Line is Active 4
524286 Ram Failure 12
Table 2, J1939 SPNs for Bulkhead Module (BHM) SA 33
Bulkhead Module 54.12
Bulkhead Module Fault Code Information
Business Class M2 Workshop Manual, Supplement 22, September 2012 410/7