Navistar N9 Diagnostic Manual page 26

22 1 DIAGNOSTIC TROUBLESHOOTING PROCEDURES
SPN FMI Sub-section
5743 11 SCR (page 1907)
5743 16 SCR (page 1907)
5743 19 SCR (page 1907)
5745 3 DEFSMH (page 508)
5745 4 DEFSMH (page 508)
5745 18 DEFSMH (page 508)
5746 3 DEF: SMH Relay (page 782)
5746 4 DEF: SMH Relay (page 782)
5798 2 DEFSMH (page 508)
5798 10 DEFSMH (page 508)
520668 31 DEF (page 497)
520669 31 DEF (page 497)
Figure 1 Warning Lamps
Condition Description
SCR Thermocouple Controller signal erratic, intermittent, or
incorrect
SCR Thermocouple Controller above Maximum Temperature
SCR Temperature module not detect J1939
DEF Supply Module Heater Out of Range HIGH
DEF Supply Module Heater Out of Range LOW
DEF Dosing Unit Heater below Warning Temperature
DEF Supply Module Heater Relay short to PWR
DEF Supply Module Heater Relay short to GND
DEF Supply Module Heater Temperature erratic, intermittent
or incorrect
DEF Supply Module Heater Temperature abnormal rate of
change
Controller Adaptation Outer Limits Reached (Low Reductant
Delivery)
Controller Adaptation Inner Limits Reached (Low Reductant
Delivery)