Manual

RT115 Tier 3 - SERVICE 217
AS NEEDED
RT115 Tier 3 - SERVICE 217
AS NEEDED
SPN 620, FMI 3 sensor supply voltage
high
wire 17 BLU/
GRN, ECU
(U1)
SPN 620, FMI 4 sensor supply voltage
low
wire 17 BLU/
GRN, ECU
(U1)
SPN 627, FMI 1 all injector currents
low
check battery
voltage and
wiring
SPN 629, FMI 13 ECU error ECU (U1)
SPN 636, FMI 2 engine position
sensor signal
unreliable
engine
position
sensor or
wiring
SPN 636, FMI 8 engine position
sensor signal missing
SPN 636, FMI 10 engine position
sensor signal rate of
change abnormal
SPN 637, FMI 2 engine timing sensor
signal unreliable
timing sensor
or wiring
SPN 637, FMI 7 engine timing and
position sensors out
of sync
check
sensors and
wiring
SPN 637, FMI 8 engine timing sensor
signal missing
timing sensor
or wiring
SPN 637, FMI 10 engine timing signal
rate of change
abnormal
Two-line diagnostic
code
Definition Possible
cause
SPN 620, FMI 3 sensor supply voltage
high
wire 17 BLU/
GRN, ECU
(U1)
SPN 620, FMI 4 sensor supply voltage
low
wire 17 BLU/
GRN, ECU
(U1)
SPN 627, FMI 1 all injector currents
low
check battery
voltage and
wiring
SPN 629, FMI 13 ECU error ECU (U1)
SPN 636, FMI 2 engine position
sensor signal
unreliable
engine
position
sensor or
wiring
SPN 636, FMI 8 engine position
sensor signal missing
SPN 636, FMI 10 engine position
sensor signal rate of
change abnormal
SPN 637, FMI 2 engine timing sensor
signal unreliable
timing sensor
or wiring
SPN 637, FMI 7 engine timing and
position sensors out
of sync
check
sensors and
wiring
SPN 637, FMI 8 engine timing sensor
signal missing
timing sensor
or wiring
SPN 637, FMI 10 engine timing signal
rate of change
abnormal
Two-line diagnostic
code
Definition Possible
cause