STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
84
P0335
38
Signal frequency incorrect
This DTC gets logged if the EMS ECU is
receiving less pulses than expected per
crank shaft revolution from Crank/RPM
sensor ~
1.
EMS ECU applies reduce torque 4
mode:(60% of torque cut off at
1700erpm).
2.
EMS ECU disables diagnostic of
Rail pressure control build fault.
3.
EMS ECU disables the rail
pressure control fault detection.
4.
EMS ECU disables the Speed
Pilot Control strategy. So, no
more Speed control trim updates.
5.
EMS ECU gives urgent engine
stop request and power latch
request.
1.
Visually check sensor for metallic particles/burr in sensor tip
and flywheel teeth; if noticed clean the sensor tip and flywheel
to remove any foreign particle.
2.
Check for gap between crank sensor and fly wheel.
3.
Check for physical damage of fly-wheel; Replace flywheel if
found faulty.
4.
Check sensor connections for rust dirt etc.; Ensure clean
connector pins and proper fitment.
5.
Check Electrical continuity between ECU pins A60, A36 and
crank sensor connector pins 1 & 2 as per circuit schematic;
follow Electrical continuity check procedure. Replace/ Rectify
Harness if required.
6.
Check whether the Crank sensor pins A60, A36 are either short
circuited to ground/battery. If so then rectify the wiring harness
connections according to circuit schematics.
7.
Replace the crank sensor if the problem still persists.
8.
Check ECU; if problem still persist Replace ECU.
9.
After rectification, test engine in following cycle ~
a) Start the engine, in neutral gear and press the accelerator
pedal fully (as quickly as possible) for engine to go from Idle
to fly up.
b) Stay at fly up for few seconds and suddenly release the
accelerator for the engine to come back to idle. ~ Repeat the
above cycle 3 to 4 times and check the DTC does not
reappear.
OFF
ON




