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Cummins fault code14299 · HVESS Thermal Management System Performance

HVESS Thermal Management System Performance - Data Valid But Below Normal Operating Range - Moderately Severe Level

Fault code14299 Cummins fault code as shown in INSITE / CaltermSPN13142 · HVESS Thermal Management System PerformanceFMI18 Data valid but below normal operating range - moderately severe levelOBD codenone (J1939 only)LampAmber WARNING lampCummins textHVESS Thermal Management System Performance - Data Valid But Below Normal Operating Range - Moderately Severe LevelFailure modeData Valid But Below Normal Operating Range - Moderately Severe Level

What Cummins code 14299 means

The reading for HVESS Thermal Management System Performance 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 lights the amber CHECK ENGINE (warning) lamp. The engine keeps running, but a torque or speed derate may apply depending on the calibration and on how long the fault stays 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 13142 FMI 18 rather than as Cummins code 14299. 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 13142 HVESS Thermal Management System Performance

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

14275 FMI 114276 FMI 1114298 FMI 17

All codes grouped by SPN →

Related Cummins fault codes

14295 · SPN 14101 FMI 31HVESP7 Status 1 CRC14296 · SPN 8096 FMI 1HVESS High-Voltage Bus Active Isolation Test Status14297 · SPN 8096 FMI 18HVESS High-Voltage Bus Active Isolation Test Status14298 · SPN 13142 FMI 17HVESS Thermal Management System Performance14311 · SPN 520758 FMI 9Cabin High Voltage Air-Conditioner Compressor14312 · SPN 520759 FMI 95th Wheel Pump High Voltage DC/AC Inverter14313 · SPN 516107 FMI 6High Voltage Isometer Error Flags14314 · SPN 516107 FMI 3High Voltage Isometer Error Flags

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.

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

Questions about code 14299

What does Cummins fault code 14299 mean?

Cummins 14299 is "HVESS Thermal Management System Performance - Data Valid But Below Normal Operating Range - Moderately Severe Level". It maps to SPN 13142 FMI 18. The reading for HVESS Thermal Management System Performance 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

Which lamp does fault code 14299 turn on?

Amber WARNING lamp: It lights the amber CHECK ENGINE (warning) lamp. The engine keeps running, but a torque or speed derate may apply depending on the calibration and on how long the fault stays active.

How do I clear or permanently delete Cummins code 14299?

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 14299 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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