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Download from: https://truckmanualshub.com/Freightliner Business Class M2 Fault Codes List - Bulkhead ModuleBulkhead Module Fault Code InformationJ1587 SIDs for Bulkhead Module (BHM) MID 164SIDDescriptionPossible FMI000Backlighting Dimmer Switch Fault001Clutch Switch Fault7002Reserved for Future Use—003Headlamp Switch Disagreement–Both park and on inputs are closed7004Multifunction Turn Signal Switch High Beam Input Fault2005Ignition Switch Fault7006Marker Interrupt Switch Fault7007Multifunction Turn Signal Switch Disagreement–Both wiper high and wiper low inputs areon.2008Multifunction Turn Signal Switch Disagreement–Wiper on/off is off and wiper high or lowinput is on2009Wiper Park Input Fault7010ICU3-M2 Hazard Switch CAN Feedback Error2011Multifunction Turn Signal Switch Left Turn Signal Input Fault2012Multifunction Turn Signal Switch Right Turn Signal Input Fault2013Multifunction Turn Signal Switch Washer Switch Input Fault2014Multifunction Turn Signal Switch Wiper On/Off Input Fault2Download from: https://truckmanualshub.com/Download from: https://truckmanualshub.com/7
J1587 SIDs for Bulkhead Module (BHM) MID 164SIDDescriptionPossible FMI015Multifunction Turn Signal Switch Wiper Low Input Fault2016Multifunction Turn Signal Switch Wiper High Input Fault2017Wheel-Based Vehicle Speed CAN Message Error2018Wake-up Hardware Fault–Modules are kept awake7019Unknown Keep Awake Fault–Modules are kept awake.7020Extra Smart Switch7021Duplicate Smart Switch7022Missing Smart Switch7023Fifth Wheel Solenoid Unexpected Pressure Feedback7024Fifth Wheel Solenoid No Pressure Feedback7025End of Frame Air Unexpected Pressure Feedback7026End of Frame Air No Pressure Feedback7027Axle Lift Unexpected Pressure Feedback7028Axle Lift No Pressure Feedback7029Suspension Dump Unexpected Pressure Feedback7030Suspension Dump No Pressure Feedback7031Suspension Proportioning Unexpected Pressure Feedback7032Suspension Proportioning No Pressure Feedback7033Cigar Lighter Output Fault7034BHM/ICU3-M2 Ignition Mismatch7035BHM/ICU3-M2 Hazard Switch Mismatch2036BHM/ICU3-M2 Wiper Park Mismatch2037Missing Transmission CAN Message9038Missing Chassis Module CAN Message9039Remote Bucket Switch Stuck Fault7040Axle Lift 2 Unexpected Pressure Feedback7041Axle Lift 2 No Pressure Feedback7042PTO 1 Unexpected Pressure Feedback7043PTO 1 No Pressure Feedback7044PTO 2 Unexpected Pressure Feedback7045PTO 2 No Pressure Feedback7046CHM No PWM DRLs Fault8Reserved for Future Use—047–049050BHM B1.A—Fuel Level Input Fault (Not Used)3, 4051BHM B1.F, B1.P, B2.K, B2.L, B6.A8—Ignition Power Output Fault5, 6052BHM B1.J—Main BHM Power VBAT5 Input Fault3, 4Download from: https://truckmanualshub.com/
J1587 SIDs for Bulkhead Module (BHM) MID 164SIDDescriptionPossible FMI053BHM B1.K, B5.C—Tail/Clearance Lamp Output Fault5, 6054BHM B1.L—Left High Beam Output Fault5, 6055BHM B1.N—Main BHM Power VBAT3 Input Fault3, 4056BHM B1.R—Left Low Beam Output Fault5, 6057BHM B2.M—A/C Clutch Output Fault5, 6058BHM B3.D—Main BHM Power VBAT1 Input Fault3, 4059BHM B3.E—Horn Output Fault060BHM B3.F—Wiper High Speed Output Fault5, 6061BHM B3.G—Washer Pump Output Fault5, 6062BHM B3.H—Wiper Low Speed Output Fault5, 6063BHM B4.B—Starter Relay Output Fault5, 6064BHM B4.E, B4.F—Spare Output Fault3, 4, 5, 6065BHM B4.G—Main BHM Power VBAT2 Input Fault3, 4066BHM B4.K—Main BHM Power VBAT4 Input Fault3, 4067BHM B4.M, B5.E—Spare Output Fault068BHM B5.A, B7.A12—Dome Lamp Battery Power Output Fault5, 6069BHM B6.A9, B6.A10—HVAC/Radio Ignition Power Output Fault5, 6070BHM B5.B—Dome Lamp Switched Power Output Fault5, 6071BHM B5.D—ICU Wake Output Fault5, 6072BHM B5.F—Cigar Light Output Fault3, 4, 5, 6073BHM B5.G—Spare Ignition Power Output Fault3, 4, 5, 6074BHM B5.H, B7.A1—Panel Lamps Output Fault3, 4, 5, 6075CHM C1.A, C1.H, C1.J—Backup Lamps/Alarm Output Fault5, 6076CHM C1.G, C2.H, C3.N—Left Turn Signal Output Fault5, 6077CHM C1.L—Right Stop Lamp Output Fault5, 6078CHM C1.N—Left Stop Lamp Output Fault5, 6079CHM C1.P, C2.E, C3.R—Right Turn Signal Output Fault5, 6080CHM C2.A—Trailer Power Relay Output Fault081CHM C2.F, C4.C, C4.D, C4.L, C4.M—Park/Marker Lamp Output3, 4, 5, 6082CHM C3.A—Spare Output Fault3, 4, 5, 6083CHM C3.C, C3.D—Spare Output Fault5, 6084CHM C3.E—Low Air Pressure Input Fault3, 4085CHM C3.F—Park Brake Input Fault3, 4086CHM C3.J—Main CHM Power VBAT2 Input Fault3, 4087CHM C3.K—Right DRL Output Fault5, 6088CHM C3.L—Right Low Beam Output5, 6Download from: https://truckmanualshub.com/3, 4, 5, 63, 4, 5, 63, 4
J1587 SIDs for Bulkhead Module (BHM) MID 164SIDDescriptionPossible FMI089CHM C4.F—Left DRL Output Fault5, 6090CHM C4.J—Main CHM Power VBAT3 Input Fault3, 4091CHM C4.K—Right High Beam Output5, 6092CHM C4.P—Main CHM Power VBAT1 Input Fault3, 4093CHM C5.A—Solenoid #0 Pressure Feedback Fault3, 4094CHM C5.B—Solenoid #1 Pressure Feedback Fault3, 4095CHM C5.F—Solenoid #2 Pressure Feedback Fault3, 4096CHM C5.G—Solenoid #3 Pressure Feedback Fault3, 4097CHM C5.H—Solenoid #0 Output Fault3, 4098CHM C5.J—Solenoid #1 Output Fault3, 4099CHM C5.L—Solenoid #2 Output Fault3, 4100CHM C5.M—Solenoid #3 Output Fault3, 4101EXM Fault (Fault in one of the EXM Outputs)3, 4, 5, 6J1939 SPNs for Bulkhead Module (BHM) SA 33SPNDescriptionPossible FMI70Parking Brake Switch280Washer Fluid Level284Wheel-based Vehicle Speed1996Fuel Level1997Water In Fuel Indicator163Transmission Current Range19177Transmission Oil Temperature Sensor523Transmission Current Gear12, 19524Transmission Selected Gear12, 19597ABS Service Brake Switch2598Clutch Switch7879Front Left Turn Signals Output Fault880Trailer Stop Lamp Relay Output Fault4881Front Right Turn Signals Output Fault5, 6882Park/Marker Lights Output Fault12, 193, 45, 64, 5, 6973Engine Retarder Selection191487Backlighting Dimmer Switch Fault71550A/C Clutch Output Fault2003Missing Transmission CAN MessageDownload from: https://truckmanualshub.com/5, 69
J1939 SPNs for Bulkhead Module (BHM) SA 33SPNDescriptionPossible FMI2071Missing Chassis Module CAN Message96890CHM No PWM DRLs Fault86897Fuel Water Separator Heater Output Fault66898Brake Air Dryer Output Fault66906PTO 2 No Pressure Feedback76907PTO 2 Unexpected Pressure Feedback76908PTO 1 No Pressure Feedback76909PTO 1 Unexpected Pressure Feedback76910Axle Lift 2 No Pressure Feedback76911Axle Lift 2 Unexpected Pressure Feedback76912Remote Bucket Switch Stuck Fault76915Lamp and Gauge Ignition Output Fault6916BHM/ICU3-M2 Wiper Park CAN Message Mismatch26917BHM/ICU3-M2 Hazard Switch CAN Message Mismatch26918Missing Smart Switch76919Duplicate Smart Switch76920Extra Smart Switch76921Unknown Keep Awake Fault–Modules are kept awake76922Wake-up Hardware Fault–Modules are kept awake76923Wiper Parked Input Fault76924Multifunction Turn Signal Switch Disagreement–Wiper on/off input is off and wiper highor low input is on26925Multifunction Turn Signal Switch Disagreement–Both wiper high and wiper low inputs areon26926Marker Interrupt Switch Fault76927Utility Lamp Output Fault6928Suspension Proportioning No Pressure Feedback76929Suspension Proportioning Unexpected Pressure Feedback76930Suspension Proportioning Solenoid Output Fault6931Suspension Dump No Pressure Feedback76932Suspension Dump Unexpected Pressure Feedback76933Suspension Dump Solenoid Output Fault3, 4, 5, 66934Spotlights Output Fault3, 4, 5, 66935Snow Plow Relay Output Fault3, 4, 5, 66936Rear 2 Differential Lock Pressure Feedback Fault6937Rear 2 Differential Lock Solenoid Output Fault6938Rear 1 Differential Lock Pressure Feedback FaultDownload from: https://truckmanualshub.com/4, 5, 63, 4, 5, 63, 4, 5, 673, 4, 5, 67
J1939 SPNs for Bulkhead Module (BHM) SA 33SPNDescriptionPossible FMI6939Rear 1 Differential Lock Solenoid Output Fault3, 4, 5, 66940Optional Feature Output Fault3, 4, 5, 66941Heated Mirrors Output Fault3, 4, 5, 66942Interaxle Pressure Feedback Fault6943Interaxle Solenoid Output Fault6944Fuel Water Separator Heater Output Fault6945Front Differential Lock Pressure Feedback Fault6946Front Differential Lock Solenoid Output Fault6947Fog Lamp Output Fault6949Fire Pump Pressure Feedback Fault6950Fire Pump Solenoid Output Fault6951Fifth Wheel Slide No Pressure Feedback76952Fifth Wheel Slide Unexpected Pressure Feedback76953Fifth Wheel Slide Solenoid Output Fault3, 4, 5, 66954End of Frame Air No Pressure Feedback76955End of Frame Air Unexpected Pressure Feedback76956End of Frame Air Solenoid Output Fault6957Daytime Running Lights (DRL) Output Fault6958Brake Line Air Dryer Output Fault6959Axle Shift Pressure Feedback Fault6960Axle Shift Solenoid Output Fault3, 4, 5, 66961Axle Lift No Pressure Feedback76962Axle Lift Unexpected Pressure Feedback76963Axle Lift Solenoid Output Fault3, 4, 5, 66964Air Horn Solenoid Output Fault5, 66965BHM VBAT 5 Input Fault3, 46966BHM VBAT 4 Input Fault3, 46967BHM VBAT 3 Input Fault3, 46968BHM VBAT 2 Input Fault3, 46969BHM VBAT 1 Input Fault3, 46970Wiper High Output Fault5, 66971Wiper Low Output Fault5, 66972Multifunction Turn Signal Switch Wiper High Input Fault26973Multifunction Turn Signal Switch Wiper Low Input Fault26974Multifunction Turn Signal Switch Wiper On/Off Input Fault2Download from: https://truckmanualshub.com/73, 4, 5, 64, 5, 673, 4, 5, 65, 673, 4, 5, 63, 4, 5, 65, 63, 4, 5, 67
6975ICU3-M2 Wiper Park CAN Feedback Error2J1939 SPNs for Bulkhead Module (BHM) SA 33SPNDescriptionPossible FMI6976Washer Pump Output Fault5, 66977Multifunction Turn Signal Switch Washer Switch Input Fault26978Multifunction Turn Signal Switch Right Turn Signal Input Fault26979Multifunction Turn Signal Switch Left Turn Signal Input Fault26980Right Stop Lamp Output Fault5, 66981Left Stop Lamp Output Fault5, 66982Wake Up Hardware Fault5, 66983Starter Relay (mag switch) Output Fault5, 66984Ignition System, Accessory Power Outputs Fault5, 66985Ignition System, Ignition Power Outputs Fault6986Ignition Switch Fault6987Taillights, Clearance Lights, License Plate Lights Output Fault5, 66988Left Low Beam Output Fault5, 66989Right Low Beam Output Fault5, 66990Left High Beam Output Fault5, 66991Right High Beam Output Fault5, 66992Multifunction Turn Signal Switch High Beam Input Fault6993Headlamp Switch Disagreement–Both park and on inputs are closed.76994ICU3-M2 Hazard Switch CAN Feedback Error196995Horn Output Fault6996Dome Lamps Switched Power Output Fault6997Cigar Lighter Output Fault6998Dome Lamps Battery Power Output Fault5, 66999Backup Lamps/Alarm Output Fault5, 67000Panel Lamp Backlighting PWM Output Fault2, 5, 6723, 4, 5, 65, 63, 4, 5, 63, 4, 5, 6524280Component ID Mismatch31524281Application to Parameter Incompatibility31524282Parameter Checksum Failure12524283Application Checksum Failure12524284Boot Block Checksum Failure12524285Boot Hold Line is Active4524286Ram Failure12Download from: https://truckmanualshub.com/
Failure Mode IdentifiersFMIJ1939 DescriptionJ1587 Description00Data valid but above normal operational range–Most severelevelData valid but above normal operational range(engine overheating)01Data valid but below normal operational range–Most severelevelData valid but below normal operational range(engine oil pressure too low)02Data erratic, intermittent, or incorrectData erratic, intermittent, or incorrect03Voltage above normal or shorted highVoltage above normal or shorted high04Voltage below normal or shorted lowVoltage below normal or shorted low05Current below normal or open circuitCurrent below normal or open circuit06Current above normal or grounded circuitCurrent above normal or grounded circuit07Mechanical system not responding or out of adjustmentMechanical system not responding properly08Abnormal frequency, pulse width, or periodAbnormal frequency, pulse width, or period09Abnormal update rateAbnormal update rate10Abnormal rate of changeAbnormal rate of change11Root cause not knownFailure mode not identifiable12Bad intelligent device or componentBad intelligent device or component13Out of CalibrationOut of Calibration14Special InstructionsSpecial Instructions15Data valid but above normal operational range–Least severelevelReserved for future assignment by the SAESubcommittee16Data valid but above normal operational range–Moderatelysevere level—17Data valid but below normal operational range–Least severelevel—18Data valid but below normal operational range–Moderatelysevere level—19Received network data in error—31Condition Exists—Download from: https://truckmanualshub.com/Download from: https://truckmanualshub.com/
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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
