1299 / 1575
STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
141
P0645
13
Circuit open
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:-
AC relay control pin open circuit
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.
Check the compressor control relay connection; Perform
necessary repairs if connection is faulty.
3.
Check electrical continuity between ECU pin B51 to Air
condition relay as per circuit schematic; follow electrical
continuity check procedure; Replace/rectify harness if
required.
4.
Check ECU pins for damage pins for damage pins for damage
pins for damage pins and connector pins for damage/rust. In
case of rust then clean them and refit the connector.
5.
Check whether supply is available to AC compressor when AC
request is ON, else check ignition switch and relay.
6.
Check ECU pins for damage; Replace ECU, if problem persists.
7.
Confirmatory check after rectification~ Perform actuator test for
AC clutch and check if it is working fine
OFF
OFF
142
P0651
00
No Subtype information
This fault is a grouping fault for
reference voltage 1 faults: P06A7-1C,
P0652-98.
Follow the rectification procedure of P06A7-1C,P0652-98 with
which this fault appeared for resolution
ON
OFF
143
P0652
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 boost pressure sensor, cruise
control, and pedal position sensor. As all these sensors are
supplied by EMS ECU voltage supply 2.
2.
Check the continuity between the EMS ECU pin A42 (Boost
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 A42 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 A43 (cruise
control supply pin) to the connector pin and rectify if any issues
found in wiring harness connections. Check whether the EMS
ECU pin A43 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.
Check the continuity between the EMS ECU pin B29 (pedal
position sensor 2 supply pin) to the sensor connector pin and
rectify if any issues found in wiring harness connections.
Check whether the EMS ECU pin B29 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.
5.
If the problem still persists then replace EMS ECU.
ON
OFF