ECFG Superstore › Cummins fault codes › 1987

Cummins fault code1987 · Intake Manifold 5 Temperature

Intake Manifold 5 Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level

Fault code1987 Cummins fault code as shown in INSITE / CaltermSPN1802 · Intake Manifold 5 TemperatureFMI16 Data valid but above normal operating range - moderately severe levelOBD codenone (J1939 only)LampAmber WARNING lampCummins textIntake Manifold 5 Temperature - Data Valid But Above Normal Operating Range - Moderately Severe LevelFailure modeData Valid But Above Normal Operating Range - Moderately Severe Level

What Cummins code 1987 means

The reading for Intake Manifold 5 Temperature is believed to be correct, but it has gone moderately above the normal operating range. This is the middle of the three "above range" levels (FMI 15, 16 and 0); 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 1802 FMI 16 rather than as Cummins code 1987. Cummins INSITE and Calterm show the Cummins number, the SPN / FMI pair and the lamp together.

Fix the file: delete code 1987 from your calibration

from $150

Custom DTC delete, up to 30 codes, $150. Full DPF / EGR / SCR delete with all related codes and derates, $500. Upload your Calterm .xcal, tick the services, pay with PayPal, and the finished file comes back by email and WhatsApp.

Upload your .xcal →

ECFG definition files for your ECM

1,800 files

Cummins ECFG / E2M definitions for CM550, CM552, CM554, CM570, CM800, CM850, CM870, CM871 and more: the fault table, torque, fuelling, boost, EGR, DPF and SCR maps, ready for Calterm or WinOLS. Instant download.

Find your ECFG →

Other Cummins codes on SPN 1802 Intake Manifold 5 Temperature

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

2241 FMI 0 2242 FMI 3 2243 FMI 4 2244 FMI 10

All codes grouped by SPN →

Related Cummins fault codes

1983 · SPN 3050 FMI 16Catalyst Over Temperature 1984 · SPN 1131 FMI 16Intake Manifold 2 Temperature 1985 · SPN 1132 FMI 16Intake Manifold 3 Temperature 1986 · SPN 1133 FMI 16Intake Manifold 4 Temperature 1988 · SPN 1803 FMI 16Intake Manifold 6 Temperature 1989 · SPN 520276 FMI 31Real Power (kW)1991 · SPN 520277 FMI 31Reative Power (kVAR)1992 · SPN 190 FMI 16Engine Crankshaft Speed/Position

J1939 failure mode identifiers (FMI)

FMI 16 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 1987

What does Cummins fault code 1987 mean?

Cummins 1987 is "Intake Manifold 5 Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level". It maps to SPN 1802 FMI 16. The reading for Intake Manifold 5 Temperature is believed to be correct, but it has gone moderately above the normal operating range. This is the middle of the three "above range" levels (FMI 15, 16 and 0); it often triggers a derate and will escalate if the

Which lamp does fault code 1987 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 1987?

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 1987 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.

← All Cummins fault codes · XCAL file service · ECFG Superstore