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STORME 400NM

SR

NO

DTC

FTB

DESCRIPTION

CAUSES

EFFECT ON VEHICLE

CHECK

POINTS

CORRECTIVE ACTION

MIL

STATUS

CEL

4

P0001

35

Signal high time >

maximum.

This fault gets logged if the Duty cycle of

the IMV PWM input is greater than a

maximum calibrated duty cycle

threshold of IMV PWM input.

EMS ECU takes following recovery

actions:

1

. Freezes(will not activate) IMV

current trim fault.

2

. Disable cylinder balance

correction, diagnostics and tooth

learning strategy.

3

. Disables the rail pressure control

fault detection.

4

. Disables SPC strategy, no more

Spc trim update.

1.

Check 30A fuse connected to EMS power relay and battery

(+ve) power supply is not blown off. Replace if required.

2.

Ensure IMV connector is properly connected to the IMV.

3.

There is no mud, dirt, foregn particle accumulation on the

connector.

4.

Check electrical continuity of wiring harness between ECU pin

A77 and IMV connector pin 2 & EMS ECU main relay supply

and IMV connector pin 1 as per circuit schematics. Correct if

necessary.

5.

Check whether the IMV control pin of EMS A77 is short

circuited to ground/Battery because of wrong wiring harness

connections. If so rectify the wrong connections to make the

connections inline with circuit schematics.

6.

Check wiring harness resistance between IMV and ECU and

check whether it is according to the design specifications (xx

to xx ohms).

7.

Check for IMV actuator stuck issues, Replace IMV if any

mechanical stuck issues are found.

8.

Check IMV internal resistance whether it is according to the

design specifications (5.3 ohms at 20 deg C). Replace IMV if

the resistance is not according to specifications.

9.

Perform IMV buzzing test using I/O Control Command, if IMV is

not buzzing then replace IMV.

10.

Replace ECU if problem persists~11. After rectification

perform actuator test for IMV and ensure the result is

positive.~

OFF

ON

5

P0003

84

Signal Below Allowable

Range.

This fault gets logged If the difference

between the rail pressure demand and

the rail pressure feedback is less than a

calibrated minimum threshold for rail

pressure in IMV mode.

EMS ECU takes following recovery

actions:

1.

Disables SPC strategy, no more

sPC trim update.

2.

Applies reduce torque 1 mode :(

60% of torque).

3.

Disables cylinder balance

correction, diagnostics and tooth

learning strategy.

4.

Disables cruise control function.

1.

Check 30A fuse connected to EMS power relay and battery

(+ve) power supply is not blown off . Replace if required.

2.

Check electrical continuity between ECU pin no A38, A35 A19

to Rail pressure sensor connector no 3 ,1, 2. Check whether

the rail pressure sensor signal pin A35 is either shorted to

battery/ground. If so then rectify the wiring harness connections

to make them inline with circuit schematics.

3.

Check electrical continuity of wiring harness between ECU pin

A77 and IMV connector pin 2 & EMS main relay supply and

IMV connector pin 1. Rectify wiring harness connections in

case of any issue. Check 30A fuse connected to EMS power

OFF

ON