Mahindra Bolero Maxitruck Plus BS III 2013 Diagnostic Manual page 171

DIAGNOSTIC MANUAL
STEP 2
Check and confirm the proper
function of 15 A fuse in ECU
fuse box
Check the voltage between
between pin 2 of fuel metering
unit wiring harness connector
and battery ground
STEP 3
Check the continuity between
pin 1 of fuel metering unit
wiring harness connector and
pin 89 of the EMS ECU wiring
harness connector
Suspect fuel metering unit
internal failure
Replace fuel pump with a new
one.
Check and verify for any new
DTC's
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,
are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd.,
will amount to unauthorized use and shall be liable for penalty/prosecution© 2013 Mahindra & Mahindra Ltd.
EMS
STEP 1
Connect the smart tester
Turn the ignition ON
Initialise the diagnostic tool
Record the DTC and clear
Turn ignition OFF
Turn ignition ON
Verify if P1B88 is present?
Is P1B88 present?
Is the value =Vbat?
Is the continuity
exists?
MAN-00226
MAY 2013/Rev 1
P 1B88
Intermittent problem exists
Refer the intermittent problem
inspection procedure
Examine the open/short to
ground of fuel metering unit
power supply wire from main
relay
Replace the wiring harness
Check and verify for any new
DTC's
Examine the open circuit of
fuel metering unit control wire
Replace the wiring harness
Clear the DTC and verify
170