1297 / 1575
STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
137
P0642
98
Component or System
Over Temperature
This DTC gets logged under the
following conditions~~ - if the EMS ECU
voltage supply 2 is thermally shutdown
due to over temperature.
1.
This fault will lead to the faults of rail pressure sensor and pedal
position sensor 1. As both the sensors are supplied by EMS
ECU voltage supply 1.
2.
Check the continuity between the EMS ECU pin A38 (rail
pressure sensor supply pin) to the sensor connector pin 3 and
rectify if any issues found in wiring harness connections.
Check whether the EMS ECU pin A38 is short circuited to
battery/ground due to wrong wiring harness connections, if so
then rectify the wiring harness connections to make them inline
with circuit schematics.
3.
Check the continuity between the EMS ECU pin B24 (pedal
position sensor 1 supply pin) to the sensor connector pin. and
rectify if any issues found in wiring harness connections.
Check whether the EMS ECU pin B24 is short circuited to
battery/ground due to wrong wiring harness connections, if so
then rectify the wiring harness connections to make them inline
with circuit schematics.
4.
If the problem still persists then replace EMS ECU.
ON
OFF
138
P0645
00
No Subtype information
This fault code will be logged only if the
following conditions are fulfilled.
1.
Ignition switch shall be in ignition on
condition.
2.
AC request switch shall be in on
condition/AC shall be turned
ON.~This DTC will appear due to the
following reasons:~
1.AC relay control pin is short circuit
to battery
2.AC relay control pin open circuit
3.AC relay control pin short circuit to
ground.
1. During A/C clutch relay control
circuit fault, EMS ECU will not turn
on AC compressor relay even though
AC request input is active and
applies default AC torque~
1.
Check 15A fuse connected to battery (+ve) voltage supply and
AC clutch relay is not blown off and also check 30A fuse
connected to EMS power relay and battery (+ve) voltage
supply is not blown off. Replace the fuse if found faulty.
2.
This fault will comes along with other AC relay related faults
P0646, P0647 as it is a global fault.
3.
Follow the rectification procedure of P0646/P0647 with which
this DTC P0645 is appearing.
OFF
OFF
139
P0645
11
Circuit short to ground
This fault code will be logged only if the
following conditions are fulfilled.
1.
Ignition switch shall be in ignition on
During A/C clutch relay control circuit
fault, EMS ECU will not turn on AC
compressor relay even though AC
request input is active and applies
1.
Check 15A fuse connected to battery (+ve) voltage supply and
AC clutch relay is not blown off and also check 30A fuse
connected to EMS power relay and battery (+ve) voltage
supply is not blown off. Replace the fuse if found faulty.
OFF
OFF