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175

POSSIBLEFAULTSONSTATICTESTING

Note : For each Problem, all points respective to that S.No to be checked in order and rectified (Refer to ‘Flowchart’ sheet)

SR.

NO

SENSOR /ACTUATOR

FAULTVARIABLE

FAULTDESCRIPTION

TOCHECK

TORECTIFY

SYMPTOMS

DTC

CODE

1.

Ensure proper ULP file (software)

loaded

2.

Sensor connection

3.

Electrical

wiring

4.

Sensor malfunctioning

5.

Presence of water in filter and sedimentor

12

WIF sensor

P2269 F_M_WATER_IN_FUEL_APV Water in Fuel

Detected

Reflash if wrong ULP loaded

Remove and connect again

Terminal backout, wire open circuit & short

circuit

Change sensor

Drain and check for water in LP circuit

No pedal response. Engine raises to 1300

rpm

11 Injectors

P0201 F_M_FCI_OC_INJ_APV_0

Open circuit fault - Injector 1

P0202 F_M_FCI_OC_INJ_APV_3

Open circuit fault - Injector 4

P0203 F_M_FCI_OC_INJ_APV_1

Open circuit fault - Injector 2

P0204 F_M_FCI_OC_INJ_APV_2

Open circuit fault - Injector 3

P1201 F_M_FCI_SC_INJ_APV_0

Short circuit HSD to LSD (Injector 1)

P1202 F_M_FCI_SC_INJ_APV_3

Short circuit HSD to LSD (Injector 4)

P1203 F_M_FCI_SC_INJ_APV_1

Short circuit HSD to LSD (Injector 2)

P1204 _M_FCI_SC_INJ_APV_2

Short circuit HSD to LSD (Injector 3)

P2147 F_M_FCI_DRIVE_APV_0

Injector bank 1 fault - shorted to GND

P2148 F_M_FCI_DRIVE_APV_0

Injector bank 1 fault - shorted to VBATT

P2150 F_M_FCI_DRIVE_APV_1

Injector bank 2 fault - shorted to GND

P2151 F_M_FCI_DRIVE_APV_1

Injector bank 2 fault - shorted to VBATT

1.

Key off & check injector connection

2.

Electrical

wiring

3.

ECU connection

1.

Electrical

wiring

2.

Defective injector

1.

Remove injector from Cylinder 1 and

check for fault

1.

Remove injector from Cylinder 2 and

check for fault

Remove and connect again

Terminal backout, wire open circuit

Connect properly

Terminal backout, wire short circuit

Change corr. Injector and update I2C

If fault is present, check wiring of injector

from cylinder 4 to ECU

If fault goes, check wiring of injector from

cylinder 1 to ECU

If fault is present, check wiring of injector

from cylinder 3 to ECU

If fault goes, check wiring of injector from

cylinder 2 to ECU

Engine misfiring / hunting and check

engine lamp at key on

10

ECU NVM

P1614 F_M_P_L_NVM_APV

ECU non volatile memory fault-C2I,MDP

I2C values in ECU

Enter Injector I2C values

Check engine lamp at key on. No pedal

response and Engine raises to 1300 rpm

Connect properly

Fix ECU & Battery ground firmly

Change battery positive cable

Change battery

Vehicle not starting and check engine lamp

at key on

9

Battery

P1560 F_M_BATTERY_APV

Battery voltage monitoring signal fault

P0562 F_M_BATTERY_APV

Battery voltage signal – low (short circuit)

P0563 F_M_BATTERY_APV

Battery voltage signal – high (open circuit)

1.

Battery and ECU connections

2.

Resistance betn chassis & ECU grd

3.

Battery charge circuit (Insulation on

battery positive cable)(Alternator circuit)

4.

Battery voltage at key on (min 9 V)(Min

voltage for ECU is 6 volts - considering

2.5 Volts reduction during cranking)

8

Pedal sensor

P0122 F_M_PEDAL_TRACK1_APV Pedal sensor fault - electrical track1 - signal low

P0123 F_M_PEDAL_TRACK1_APV Pedal sensor fault - electrical track1 - signal high

P1120 F_M_PEDAL_TRACK1_APV Pedal sensor fault - electrical track1 - VEXT

P0222 F_M_PEDAL_TRACK2_APV Pedal sensor fault - electrical track2 - signal low

P0223 F_M_PEDAL_TRACK2_APV Pedal sensor fault - electrical track2 - signal high

P1220 F_M_PEDAL_TRACK2_APV Pedal sensor fault - electrical track2 - VEXT

Vehicle not starting and check engine lamp

at key on

Check engine lamp at key on. No pedal

response and Engine raises to 1300 rpm

Remove and connect again

Terminal backout, wire open circuit & short

circuit

Connect properly

Change Device

1.

Pedal

Device connection

2.

Electrical

wiring from ECU to intermediate

connector & from connector to Pedal

sensor

3.

ECU connection

4.

Pedal

Device malfunctioning