1212 / 1575
SAFARI 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
10
P0048
12
Circuit Short to Battery
This fault gets logged if the VGT
actuator drive pin of EMS ECU is short
circuited to battery.
ECU used to take following
recovery action if it found
turbocharger/supercharger
boost control "A" circuit issue:-
1.
Disable the AMF sensor learning.
2.
Disable the AMF plausibility test.
3.
Disable cruise control function.
4.
Disable EGR control and close
EGR valve.
5.
Apply reduce torque 3 mode :(
70% of torque cut off at
2700erpm).
6.
Disable SPC (Speed Pilot Control)
strategy, no more sPC trim
update.
7.
VGT position control disabled and
recovery position applied.
1.
Check 30A fuse connected to EMS power relay and battery
(+ve) power supply is not blown off. Replace if required.
2.
Check whether VGT actuator is stuck open/mechanical damage
to VGT actuator. In case of severe damage replace VGT
actuator.
3.
Check the continuity between the EMS ECU pin A89 to the
VGT actuator connector pin 4 && Main relay power supply to
Actuator connector pin 1 and rectify if any wiring harness
issues are found. Check 30A fuse connected to EMS power
relay is functioning properly. Replace if found faulty.
4.
Check whether the VGT actuator connector pin 2 is connected
to ground and Connector pins 3 & 5 are connected to CAN H
and CAN L lines.
5.
Check whether the VGT actuator control pin A89 is either short
circuited to battery. If so the rectify the wiring harness
connections to make them inline with circuit schematics.
6.
Check ECU pins and connector, Replace if found defective.
7.
If still problem persists then replace VGT actuator with new
one.
8.
If problem still persists then replace EMS ECU.
ON
OFF
11
P006E
1C
Circuit Voltage Out of
Range
This fault gets logged if the VGT
actuator gets Invalid/Improper Power
supply.
ECU used to take following
recovery action if it found
turbocharger/supercharger
boost control "A" module
performance issue:-
1.
Disable the AMF sensor learning.
2.
Disable the AMF plausibility test.
3.
Disable cruise control function.
4.
Disable EGR control and close
EGR valve.
5.
Apply reduce torque 3 mode:(70%
of torque cut off at 2700erpm).
6.
Disable SPC (Speed Pilot Control)
strategy, no more sPC trim
update.
7.
VGT position control disabled and
recovery position applied.
1.
Check 30A fuse connected to EMS power relay and battery
(+ve) power supply is not blown off. Replace if required.
2.
Check the continuity between the EMS ECU VGT actuator
control pin A89 to the VGT actuator connector pin 4 && Main
relay power supply (12V) to Actuator connector pin 1 and
rectify if any wiring harness issues are found.
3.
Check if the correct battery is fitted.
4.
Check & ensure main power hold rely is working properly.
5.
Check and ensure whether the battery terminals are connected
properly and they are tight.
6.
Check the charging circuit; Rectify the charging circuit if faulty.
7.
Check ECU pin no B6,B2 & B4 are getting ground connection
and B1,B3 & B5 are connected to battery positive – 12 V
supply.
8.
If fault still persists then replace VGT actuator.
9.
Check ECU; Replace ECU if problem still persists.
10.
Confirmatory check after rectification.
11.
Check battery voltage in diagnostic tool.
A ) Reading should be close to 12 V if alternator is not
charging.
B ) Reading should be close to 14 V if alternator is charging.
ON
OFF