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Operation Section
73
Table 2. Diagnostic Fault Codes (Flash Codes) cont’d.
DFC
PROBABLE FAULT
FAULT ACTION *
CORRECTIVE ACTION FIRST CHECK
491
(29)
HbridgeFault_ETC
Electronic Throttle Control
Driver has failed.
Indeterminate fault on
Hbridge driver for
electronic throttle control.
Possibly either ETC+ or
ETC- driver signals have
been shorted to ground
TurnOnMil
Check ETC driver wiring for a shorted circuit
SECM Pin A17 to ETC + Pin 1
SECM Pin A18 to ETC - Pin 4
•
Perform the throttle test using the Service
Tool and re-check for fault
Check the ETC internal motor drive by
disconnecting the throttle connector and
measuring the motor drive resistance at the
throttle
TPS Pin 1 (+DRIVER) to
Pin 4 (-DRIVER) ~3.0-4.0
Ω
521
(52)
LowOilPressureFault
Low engine oil pressure
(1) TurnOnMil
(2) DelayedEngine
Shutdown
(3) CheckEngine Light
Check engine oil level
Check electrical connection to the oil
pressure switch
SECM Pin B9 to Oil Pressure Switch
531
(53)
SysVoltRangeLow
System voltage too low
TurnOnMil
Check battery voltage
•
Perform maintenance check on electrical
connections to the battery and chassis
ground
•
Check battery voltage during starting and
with the engine running to verify charging
system and alternator function
•
Measure battery power at SECM with a
multimeter (with key on)
SECM Pin A23 (DRVP) to
SECM Pin A16 (DRVG)
SECM Pin A23 (DRVP) to
SECM Pin B17 (DRVG)
541
(54)
SysVoltRangeHigh
System voltage too high
TurnOnMil
Check battery and charging system voltage
•
Check battery voltage during starting and
with the engine running
•
Check voltage regulator, alternator, and
charging system
•
Check battery and wiring for overheating
and damage
•
Measure battery power at SECM with a
multimeter (with key on)
SECM Pin A23 (DRVP) to
SECM Pin A16 (DRVG)
SECM Pin A23 (DRVP) to
SECM Pin B17 (DRVG)
(*) 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...