Service manual

G420F(FE) Service Manual Chapter 9. Advanced Diagnostics 306
Table 2. Diagnostic Fault Codes (Flash Codes) cont’d.
DFC PROBABLE FAULT FAULT ACTION *
CORRECTIVE ACTION
FIRST CHECK
933
TransOilTemp
Excessive transmission oil
temperature
(1) TurnOnMil
(2) Delayed
EngineShutdown
Refer to drivetrain manufacturer’s
transmission service procedures
991
ServiceFault1
Service Interval 1 has been
reached
None
Perform service procedure related to
Service Interval 1 (determined by
OEM)
992
ServiceFault2
Service Interval 2 has been
reached
None
Perform service procedure related to
Service Interval 2 (determined by
OEM)
993
ServiceFault3
Service Interval 3 has been
reached
None
Perform service procedure related to
Service Interval 3 (determined by
OEM)
994
ServiceFault4
Service Interval 4 has been
reached—replace HEGO
sensors
TurnOnMil
Replace Pre-catalyst HEGO sensor
Replace Post-catalyst HEGO sensor
995
ServiceFault5
Service Interval 5 has been
reached—replace timing belt
TurnOnMil Replace engine timing belt
(*) Fault actions shown are default values specified by the OEM.