START POINT
CHECK LIST BEFORE
REPLACING VP30 FUEL PUMP.
QUESTION
KEY
ENGINE DOES NOT START. ACTION
3054E AND 3056E ENGINES
VP30 SUSPECTED OBSERVATION
CONNECT ET AND CHECK
ACTIVE DIAGNOSTIC
FAULTCODES
ARE THERE THREE OR MORE FUEL PUMP
RELATED CODES TOGETHER
YES NO
ARE THERE ANY OTHER ACTIVE ENGINE FAULT
CODES?
GO TO PAGE
THREE... NO YES
START OF RECTIFY THESE
CHECKS FAULT CODES FIRST.
REFER TO RENR2415 OR
RENR2416 TEST & ADJUST,
FUEL SYSTEM-PRIME, NO PROBLEM
PRESSURE TEST RECTIFIED?
& FUEL QUALITY.
HAS THE CORRECT BLEEDING YES
PROCEDURE BEEN CARRIED CHECK FUEL
OUT? QUANTITY AND FINISHED
IS THE ELECTRONIC LIFT QUALITY.
PUMP WORKING?
USE STATUS TOOL IN ET
AND CHECK ACTUAL CHECK CRANKING
ENGINE SPEED WHILST SPEED.
CRANKING. CHECK IT IS
ABOVE 150 RPM?
CHECK FOR
USE STATUS TOOL AND INJECTION
CHECK GREY FLAG BOXES DISABLE.
FOR INJECTION DISABLE
MESSAGE.
GO TO PAGE
TWO...
PAGE ONE
CHECK VOLTAGE SUPPLY CONT FROM
USING 'SPOON' TEST LEADS PAGE ONE...
(PART NUMBER 7X-1708 AND
7X-1709), WITH THE VLPM
STILL PLUGGED IN. CHECK
VOLTAGE INTO AND OUT OF
THE VLPM, WITH THE ENGINE
STATIONARY AND WHILST
CRANKING. CHECK VOLTAGE
SUPPLY AT VLPM.
VOLTAGE STATIONARY
SHOULD BE 12.5V OR 25V.
VOLTAGE WHILST CRANKING
SHOULD BE 10.5V OR 23V.
CHECK FOR AIR INLET
RESTRICTIONS.
CHECK AIR FILTER
IF EITHER SENSOR IS
READING BELOW 5 DEGREES CHECK COOLANT TEMP
CELSIUS CHECK THAT THE AND AIR INLET TEMP
START AID IS OPERATING. WITH ET STATUS
TOOL.
VOLTAGE MUST BE 0 VOLTS
FOR ENGINE TO RUN. SIGNAL CHECK THAT WIRE
GOES HIGH TO STOP THE F770 (PIN 5 FROM
ENGINE. VP30 TO PIN 1 ECM)
IS NOT SHORTED
HIGH (12V)
USE A SPARE ECM IN 'TEST
ECM‘MODE AND CHECK FOR CODES.
TEST ECM, LOAD WITH CURRENT
MACHINE SOFTWARE FILE REPLACE ECM WITH
(DO NOT REMOVE ORIGINAL ECM A TEST ECM.
UNTIL TEST ECM CHECKS HAVE
BEEN COMPLETED)
REFER TO RENR 2417-TEST ECM
CHANGE FUEL PUMP?
AND FOLLOW RETURN NO PROBLEM
PROCEDURE WITH
RECTIFIED?
DOCUMENTATION AS
OUTLINED IN TIBU3989
YES
FINISHED
PAGE TWO
FROM PAGE 1
CONT...
DO THE CODES INCLUDE:
174-2 NO GO TO START OF
342-2 CHECKS ON PAGE 1
1684-14
1684-10
YES
CHECK VOLTAGE AT
VOLTAGE MUST BE ABOVE 12 VOLTS VP30 FUEL
OR 24 VOLTS. INJECTION PUMP
PLUG.
CHECK CONTINUITY
RESISTANCE MUST BE LESS THAT OF J1939 CAN
0.5 OHMS. PIN58 on ECM to PIN1 CONNECTIONS
on FIP (CAN-) PIN48 on ECM to BETWEEN VP30 AND
PIN2 on FIP (CAN+) ECM.
USE A SPARE ECM IN 'TEST ECM' REPLACE ECM WITH
MODE AND CHECK FOR CODES. A TEST ECM.
CHANGE FUEL PUMP?
AND FOLLOW RETURN NO ARE FAULT CODES
PROCEDURE WITH CLEARED?
DOCUMENTATION AS
OUTLINED IN TIBU3989
YES
GO TO START OF CHECKS ON NO DOES THE ENGINE
FINISHED
PAGE 1 START?
PAGE THREE
START POINT
CHECK LIST BEFORE
REPLACING VP30 FUEL PUMP.
QUESTION
KEY
ENGINE DE-RATE CONDITION. ACTION
VP30 SUSPECTED OBSERVATION
CONNECT ET AND CHECK
LOGGED EVENT CODES.
ARE THERE LOGGED EVENT CODES PRESENT?
NO YES
GO TO FUEL
PUMP
CHECK LIST
CHECKVALUES FOR...
IF THE TEMP VALUE IS ABOVE COOLANT TEMPERATURE
THE DERATE VALUE THIS WILL AIR TEMPERATURE
LIMIT POWER FROM THE FUEL TEMPERATURE
ENGINE. CHECK IN AGAINST THE ECM DERATE
MONITORING MODE VALUES.
SHUTDOWNS FOR THE ECM
VALUES.
MECHANICAL NO ARE THE TEMPERATURES
INVESTIGATION NORMAL?
YES
GO TO FUEL PUMP CHECK
LIST
PAGE FOUR
