1208 / 1575
SAFARI 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
relay is functioning properly. Replace if found faulty.
4.
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.
5.
Check IMV internal resistance whether it is according to the
design specifications (5.3 ohms at 20 degrees C). Replace IMV
if the resistance is not according to specifications.
6.
Check whether adequate fuel level is available in the tank.
7.
Check high pressure fuel lines for leakage.
8.
Check fuel filter is not clogged.
9.
Check low pressure fuel lines for air entry.
10.
Check & ensure IMV and rail pressure sensor connectors for
proper fitment.
11.
Check rail pressure sensor for oxidation, rust etc., if
observed clean deposit.
12.
Check harness for damages; Replace / Repair if harness is
damaged.
13.
Check ECU pins and connector, Replace if found defective.
14.
If vehicle is unable to start the perform 'Static injector back
leak test', Please check if any injector back leak is abnormally
high compared to other injectors, then replace corresponding
injectors.
15.
If vehicle is able to start then start the vehicle and perform
'Dynamic IMV test' - If test result shows IMV is faulty then
replace IMV.
16.
If vehicle is able to start then start the vehicle and perform
'Dynamic injector back leak test', Please check if any injector
back leak is abnormally high compared to other injectors, then
replace corresponding injectors.
17.
If vehicle is able to start then start the vehicle and perform
"Pump pressure build capacity test' - If test result shows not ok
then replace HP pump.
18.
Check whether High pressure pump is functioning
properly/able to build pressure else replace high pressure
pump.
19.
Check whether IMV is stuck closed, if so replace the IMV.
20.
After rectification ensure the following before handing over to
customer. ~ a) Rail pressure at ignition key on is < 10 bar,~ b)
By removing the rail pressure sensor connector shows a very
rail pressure value in bar, ~ c) High pressure leak detection test
can be carried out. ~ d) Please drive the vehicle on road, check
and ensure rail pressure feed-back follows the demand
continuously.(feedback and demand parameters can be
monitored by using diagnostic tool).