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Cummins fault code11846 · HVESP5 High-Voltage Bus Active Isolation Test Results

HVESP5 High-Voltage Bus Active Isolation Test Results - Data Valid But Below Normal Operating Range - Moderately Severe Level

Fault code11846 Cummins fault code as shown in INSITE / CaltermSPN11592 · HVESP5 High-Voltage Bus Active Isolation Test ResultsFMI18 Data valid but below normal operating range - moderately severe levelOBD codenone (J1939 only)LampRed STOP lampCummins textHVESP5 High-Voltage Bus Active Isolation Test Results - Data Valid But Below Normal Operating Range - Moderately Severe LevelFailure modeData Valid But Below Normal Operating Range - Moderately Severe Level

What Cummins code 11846 means

The reading for HVESP5 High-Voltage Bus Active Isolation Test Results is believed to be correct, but it has gone moderately below the normal operating range. This is the middle of the three "below range" levels (FMI 17, 18 and 1); it often triggers a derate and will escalate if the condition continues.

It turns on the red STOP ENGINE lamp. Cummins classes this as a fault that can damage the engine or aftertreatment if ignored: stop as soon as it is safe to do so. Many calibrations also apply an engine-protection derate while the fault is active.

On a generic J1939 scan tool, or on the dash of a Freightliner, Kenworth, Peterbilt, International or Volvo chassis, the same fault is shown as SPN 11592 FMI 18 rather than as Cummins code 11846. Cummins INSITE and Calterm show the Cummins number, the SPN / FMI pair and the lamp together.

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Other Cummins codes on SPN 11592 HVESP5 High-Voltage Bus Active Isolation Test Results

3 other fault codes share this SPN; each one is a different failure mode (FMI) of the same component.

11845 FMI 1 13292 FMI 7 14119 FMI 31

All codes grouped by SPN →

Related Cummins fault codes

11842 · SPN 11570 FMI 9HVESP5 Module 14 Operational Status 11843 · SPN 11571 FMI 9HVESP5 Module 15 Operational Status 11844 · SPN 11572 FMI 9HVESP5 Module 16 Operational Status 11845 · SPN 11592 FMI 1HVESP5 High-Voltage Bus Active Isolation Test Results 11847 · SPN 11605 FMI 1HVESP5 State of Health 11848 · SPN 11607 FMI 18HVESP5 Total Energy Throughput 11849 · SPN 11632 FMI 0HVESP6 Voltage Level 11851 · SPN 11632 FMI 16HVESP6 Voltage Level

J1939 failure mode identifiers (FMI)

FMI 18 is highlighted. The FMI is the second half of every J1939 fault and tells you how the component failed; the SPN tells you which component.

FMI	Meaning (SAE J1939-73)
0	Data valid but above normal operational range - most severe level
1	Data valid but below normal operational range - most severe level
2	Data erratic, intermittent or incorrect
3	Voltage above normal, or shorted to high source
4	Voltage below normal, or shorted to low source
5	Current below normal or open circuit
6	Current above normal or grounded circuit
7	Mechanical system not responding or out of adjustment
8	Abnormal frequency, pulse width or period
9	Abnormal update rate
10	Abnormal rate of change
11	Root cause not known
12	Bad intelligent device or component
13	Out of calibration
14	Special instructions
15	Data valid but above normal operating range - least severe level
16	Data valid but above normal operating range - moderately severe level
17	Data valid but below normal operating range - least severe level
18	Data valid but below normal operating range - moderately severe level
19	Received network data in error
20	Data drifted high
21	Data drifted low
22	Reserved for SAE assignment
23	Reserved for SAE assignment
24	Reserved for SAE assignment
25	Reserved for SAE assignment
26	Reserved for SAE assignment
27	Reserved for SAE assignment
28	Reserved for SAE assignment
29	Reserved for SAE assignment
30	Reserved for SAE assignment
31	Condition exists

Questions about code 11846

What does Cummins fault code 11846 mean?

Cummins 11846 is "HVESP5 High-Voltage Bus Active Isolation Test Results - Data Valid But Below Normal Operating Range - Moderately Severe Level". It maps to SPN 11592 FMI 18. The reading for HVESP5 High-Voltage Bus Active Isolation Test Results is believed to be correct, but it has gone moderately below the normal operating range. This is the middle of the three "below range" levels (FMI 17, 18 and 1); it often triggers a derate

Which lamp does fault code 11846 turn on?

Red STOP lamp: It turns on the red STOP ENGINE lamp. Cummins classes this as a fault that can damage the engine or aftertreatment if ignored: stop as soon as it is safe to do so. Many calibrations also apply an engine-protection derate while the fault is active.

How do I clear or permanently delete Cummins code 11846?

An active code goes inactive on its own once the condition is gone; the inactive record stays in the ECM fault history until it is cleared with Cummins INSITE (or a J1939 tool that supports the DM3 / DM11 clear). If the code keeps coming back because the part is gone, disconnected or not worth repairing, the lasting fix is to disable fault 11846 in the calibration: upload your .xcal to the ECFG Superstore file service, custom DTC delete from $150 (up to 30 codes), full DPF / EGR / SCR delete $500, and flash the returned file with Calterm or INSITE.

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