
(Table 72, contd)
Diagnostic Trouble Codes for the Indicator Lamps
J1939
Code
Description
Notes
623-6
Red Stop Lamp : Current Above Normal
The ECM detects a high current condition in the circuit for the shutdown
lamp.
624-5
Amber Warning Lamp : Current Below Normal
The ECM detects a low current condition in the circuit for the warning lamp.
624-6
Amber Warning Lamp : Current Above Normal
The ECM detects a high current condition in the circuit for the warning lamp.
1081-5
Engine Wait to Start Lamp : Current Below Normal
The ECM detects a low current condition in the circuit for the wait to start
lamp.
1081-6
Engine Wait to Start Lamp : Current Above Normal
The ECM detects a high current condition in the circuit for the wait to start
lamp.
3697-5
Particulate Trap Lamp Command : Current Below
Normal
The ECM detects a low current condition in the circuit for the Diesel Particu-
late Filter (DPF) lamp.
3697-6
Particulate Trap Lamp Command : Current Above
Normal
The ECM detects a high current condition in the circuit for the DPF lamp.
3698-5
Exhaust System High Temperature Lamp Command :
Current Below Normal
The ECM detects a low current condition in the circuit for the High Exhaust
System Temperature (HEST) lamp.
3698-6
Exhaust System High Temperature Lamp Command :
Current Above Normal
The ECM detects a high current condition in the circuit for the HEST lamp.
3702-5
Diesel Particulate Filter Active Regeneration Inhibited
Status : Current Below Normal
The ECM detects a low current condition in the circuit for the DPF disabled
lamp.
3702-6
Diesel Particulate Filter Active Regeneration Inhibited
Status : Current Above Normal
The ECM detects a high current condition in the circuit for the DPF disabled
lamp.
5099-5
Engine Oil Pressure Low Lamp Data : Current Below
Normal
The ECM detects a low current condition in the circuit for the low oil pressure
lamp.
5099-6
Engine Oil Pressure Low Lamp Data : Current Above
Normal
The ECM detects a high current condition in the circuit for the low oil pres-
sure lamp.
The Engine Control Module (ECM) provides nine
outputs that can be used to illuminate indicator lamps.
If applicable, some of the outputs can be
programmed to a J1939 device.
Each J1/P1 output is a low side driver.
Low Side Driver
– The ECM provides a connection
to ground in order to activate the lamp.
J1939 Device
– The ECM sends digital data on the
J1939 data link in order to control the lamp.
Table 73 provides information on the typical lamp
outputs.
Table 73
Lamp Outputs (Typical Application)
Lamp
Default Output Terminal
Regeneration Active Lamp
J1/P1:74
Shutdown Lamp
J1/P1:51
Warning Lamp
J1/P1:92
(continued)
UENR0612
145
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