1287 / 1575
STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
116
P048A
12
Circuit Short to Battery
EMS ECU detects this fault if the
following condition is true:-
Any of EGR actuator H bridge drive pins
of EMS ECU are short circuited to
battery.
EMS ECU takes following recovery
actions:~
1.
Disables the AMF sensor learning.
2.
Disables the AMF plausibility test.
3.
Disables cruise control function.
4.
Disables EGR control and close
EGR valve.
5.
Disables EGR valve supply =>
EGR valve probably closed.
6.
Applies Forced EGR closing by
applying negative PWM.
7.
Applies reduce torque mode:(80%
of torque).
8.
Disable SPC (Speed Pilot Control)
strategy, no more SPC trim
update.
1.
Check the electrical continuity between the EMS ECU pins A83
and A84 to the EGR valve DC motor connector pins 2 & 1.
Rectify if any wiring harness connectivity issues are found.
2.
Check for rust/dirt on the connector and clean it if any rust/dirt
found.
3.
Check whether EMS ECU pins A83 & A84 are either short
circuited to vbatt. If so, then rectify the wiring harness
connections.
4.
Remove the Actuator, Check the resistance across the actuator
positive and negative terminals, if the resistance is not in
design specified range (3 ohms) then replace EGR actuator.
5.
Check ECU pins for any damage.
6.
If problem still persists then change Motorized EGR valve.
7.
If problem still persists then replace ECU.
ON
OFF
117
P049D
54
Missing Calibration
1. This fault gets logged if the first
learning of the motorized EGR actuator
is either wrongly done/not done.
EMS ECU takes following recovery
actions:~
1.
Disables the AMF sensor learning.
2.
Disables the AMF plausibility test~
1.
Relearn the Motorized EGR actuator.
2.
If the problem still persists then replace Motorized EGR
actuator.
3.
If the problem still persists then replace EMS ECU.
OFF
ON
118
P049D
62
Signal compare failure
This fault gets logged if the deviation
between the current learning and the
first learning for closed position of EGR
actuator is greater than a maximum
calibrated threshold or the deviation
between the current learning and the
previous learning for closed position of
EGR actuator is greater than a
maximum calibrated threshold.
EMS ECU takes following recovery
actions:~
1.
Disables the AMF sensor learning.
2.
Disables the AMF plausibility test.
1.
Relearn the Motorized EGR actuator.
2.
If the problem still persists then replace Motorized EGR
actuator.
3.
If the problem still persists then replace EMS ECU.
OFF
ON
119
P0500
29
Signal invalid
This fault gets logged if the vehicle
distance or vehicle speed information
sent by ABS ECU via CAN to EMS ECU
is implausible/not available
EMS ECU Use a specific max torque
map in case of SPC disabling to
prevent from any injector drif
1.
Check DTCs in ABS/ESP.
a.
Check for Vehicle speed sensor faults logged by ABS ECU.
Rectify those faults for resolving this fault.
b.
If ABS/ESP logs C1617 or C1616 as Active DTC; then there
is an open circuit failure in ABS/ESP stub (or connector).
c.
Check CAN wiring harness for open circuit failure in
ABS/ESP stub (or connector).
d.
. Repair or replace CAN wiring harness.
2.
Check DTCs in TOD; IC; FATC (If they are present in the
vehicle variant).
OFF
ON