Fault Code Guide

J1939 SPNs for Bulkhead Module (BHM) SA 33
SPN Description Possible FMI
2071 Missing Chassis Module CAN Message 9
6890 CHM No PWM DRLs Fault 8
6897 Fuel Water Separator Heater Output Fault 6
6898 Brake Air Dryer Output Fault 6
6906 PTO 2 No Pressure Feedback 7
6907 PTO 2 Unexpected Pressure Feedback 7
6908 PTO 1 No Pressure Feedback 7
6909 PTO 1 Unexpected Pressure Feedback 7
6910 Axle Lift 2 No Pressure Feedback 7
6911 Axle Lift 2 Unexpected Pressure Feedback 7
6912 Remote Bucket Switch Stuck Fault 7
6915 Lamp and Gauge Ignition Output Fault 4, 5, 6
6916 BHM/ICU3-M2 Wiper Park CAN Message Mismatch 2
6917 BHM/ICU3-M2 Hazard Switch CAN Message Mismatch 2
6918 Missing Smart Switch 7
6919 Duplicate Smart Switch 7
6920 Extra Smart Switch 7
6921 Unknown Keep Awake Fault–Modules are kept awake 7
6922 Wake-up Hardware Fault–Modules are kept awake 7
6923 Wiper Parked Input Fault 7
6924 Multifunction Turn Signal Switch Disagreement–Wiper on/off input is off and wiper high
or low input is on
2
6925 Multifunction Turn Signal Switch Disagreement–Both wiper high and wiper low inputs are
on
2
6926 Marker Interrupt Switch Fault 7
6927 Utility Lamp Output Fault 3, 4, 5, 6
6928 Suspension Proportioning No Pressure Feedback 7
6929 Suspension Proportioning Unexpected Pressure Feedback 7
6930 Suspension Proportioning Solenoid Output Fault 3, 4, 5, 6
6931 Suspension Dump No Pressure Feedback 7
6932 Suspension Dump Unexpected Pressure Feedback 7
6933 Suspension Dump Solenoid Output Fault 3, 4, 5, 6
6934 Spotlights Output Fault 3, 4, 5, 6
6935 Snow Plow Relay Output Fault 3, 4, 5, 6
6936 Rear 2 Differential Lock Pressure Feedback Fault 7
6937 Rear 2 Differential Lock Solenoid Output Fault 3, 4, 5, 6
6938 Rear 1 Differential Lock Pressure Feedback Fault 7
Bulkhead Module 54.12
Bulkhead Module Fault Code Information
Business Class M2 Workshop Manual, Supplement 22, September 2012 410/5