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Operation Section
69
Table 2. Diagnostic Fault Codes (Flash Codes) cont’d.
DFC
PROBABLE FAULT
FAULT ACTION *
CORRECTIVE ACTION FIRST CHECK
381
(38)
IATRangeHigh
Intake Air Temperature
Sensor Input is High normally
set if the IAT temperature
sensor wire has been
disconnected or the circuit has
opened to the SECM.
TurnOnMil
Check TMAP connector and IAT signal wiring
for a shorted circuit
TMAP Pin 2 to SECM Pin B12 (signal)
TMAP Pin 1 to SECM Pin B1 (sensor GND)
To check the IAT sensor of the TMAP
disconnect the TMAP connector and measure
the IAT resistance
Resistance is approx 2400 ohms at room
temperature.
391
IAT_IR_Fault
Intake Air Temperature not
changing as expected
None
Check connections to TMAP sensor. Check
that TMAP sensor is properly mounted to
manifold.
421
EST1_Open
EST1 output open, possibly
open EST1 signal or defective
spark module
TurnOnMil
Check coil driver wiring and connector for open
circuit
SECM Pin A9 (EST1) to OEM ignition system.
See application note.
Verify GND on ignition module
Pin A (of both connectors)
12 Vdc on ignition module
Pin B (of both connectors)
Refer to application manual for specific engine
details.
422
EST2_Open
EST2 output open, possibly
open EST2 signal or defective
spark module
TurnOnMil
Check coil driver wiring and connector for open
circuit
SECM Pin A10 (EST2) to OEM ignition
system. See application note.
Verify GND on ignition module
Pin A (of both connectors)
12 Vdc on ignition module
Pin B (of both connectors)
Refer to application manual for specific engine
details.
423
EST3_Open
EST3 output open, possibly
open EST3 signal or defective
spark module
TurnOnMil
Check coil driver wiring and connector for open
circuit
SECM Pin A3 (EST3) to OEM ignition system.
See application note.
Verify GND on ignition module
Pin A (of both connectors)
12 Vdc on ignition module
Pin B (of both connectors)
Refer to application manual for specific engine
details.
(*) Fault actions shown are default values specified by the OEM.
Содержание GC15S-5
Страница 1: ...SB2354E00 Operation Maintenance Manual LIFT TRUCKS GC15S 5 GC18S 5 GC20SC 5 0703...
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Страница 32: ...Safety Section 30 Lean away from the direction of fall Lean forward...
Страница 34: ...General Section 32...