MechanicDB
J1939 351 fault pairs Body controller

Navistar J1939 Fault Codes

What this page covers
351 SPN/FMI fault pairs published by Navistar in 2 fault-code documents, as they appear in the MechanicDB Heavy Duty dataset. The dataset maps every pair to an authored fault family with FMI-informed procedure consideration order, difficulty ratings, parts-cost ranges and labour estimates where known; this page shows the coverage and the rows that are in the free sample.
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Source documents

Source documentControllerFault pairs
S08327 Body Controller Diagnostic Trouble Codes (2010)Body controller326
s082504 Electrical System Troubleshooting Guide fault-code XMLBody controller25

Fault pairs by system

SystemFault pairs
Body/Cab150
Electrical116
Transmission32
Brakes/ABS23
Instrument13
Engine6
Network6
Fuel5

Largest fault families

Fault familyFault pairs
Remote Power Module Output Channel60
PTO / Transfer Case / Driveline Interface Circuit29
Switch Pack Multiplex Module Input25
Remote Power Module Output Overcurrent Protection24
Auxiliary Solenoid Output Circuit21
Body Builder Equipment Output Circuit19
Cab / Chassis Switch Input Circuit19
Generic Relay Driver Output Circuit17
Marker / Turn Signal Lamp Output Circuit11
Air / Drain Valve Solenoid Circuit10

Failure modes (FMI)

FMIMeaningFault pairs
0Reading in-range but far too high4
1Reading in-range but far too low4
2Signal unstable, intermittent or implausible93
3Circuit voltage high / short to supply2
4Circuit voltage low / short to ground4
5Current too low; open circuit56
6Current too high; short to ground112
7Mechanical part not reacting or misadjusted6
9Message not arriving at expected rate11
13Calibration data outside limits3
14See manufacturer-specific instructions31
19Network-received value flagged as error24
31Fault present; no further detail1

Standard and OEM-assigned SPNs

267 distinct SPNs appear in these pairs. 221 of the 351 pairs use SPNs that Navistar assigns itself (516,096 and above), named from its own documents; the rest use standard SPNs whose meaning is the same on every make.

Sample rows

Rows for this OEM from the free sample. The dataset adds the ordered procedures for every pair, with cost and labour estimates where known and a part name where one is mapped.

SPNFMIOEM codeDescriptionFault family
20239—Electronic gauge cluster, tachometer sensor fault is not being received at the expected message rateInstrument/Gauge Cluster CAN Link Fault
34157—Door lock status signal is not responding to the commanded positionDoor Lock / Latch Actuator Control Circuit
40465—Transfer case status (general fault) is open, no current detectedPTO / Transfer Case / Driveline Interface Circuit
5204882—Remote power module 2, channel 5 output does not match the commanded stateRemote Power Module Output Channel
5205522—TEM auxiliary 1 interlock switch input is erratic or not read correctlySwitch Pack Multiplex Module Input
5205892—TEM dual switch 1 input is erratic or not read correctlySwitch Pack Multiplex Module Input
5207345—Front driveline engagement circuit is open, no current detectedPTO / Transfer Case / Driveline Interface Circuit
5208716—Blackout lighting ignition relay 1 circuit is shorted to ground or drawing excess currentBlackout / Convoy Lighting Output Circuit

Other OEMs

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