Specifications

TEST ACTION APPLICABILITY
13 With the DRBIIIt, select System Tests, then perform the Rail Press Control Valve
Test.
Did this test pass?
All
Yes → Go To 14
No → Replace the Fuel Pressure Solenoid in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
14 With the DRBIIIt, select System Tests, then perform the Rail Press Control Valve
Variation Test.
Did this test pass?
All
Yes → Go To 15
No → Replace the Fuel Pressure Solenoid in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
15 With the DRBIIIt, select System Test, then High Pressure Pump.
NOTE: During this test engine speed is set at 1,400 rpm and initial fuel
pressure at approximately 6,800 psi. During the test fuel pressure is
instantly set to above 20,000 psi. to test the performance of the Fuel
Injection Pump.
NOTE: After the test is completed, the DRB display fuel pressure in 30
counter steps. If the fuel pressure increases from approximately 6,800 psi to
above 20,000 psi in one counter step, the injection pump passes the test.
Did the fuel pressure increase to above 20,000 psi within one counter step on the
DRB?
All
Yes → Replace the Fuel Quantity Solenoid in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No → Replace Fuel Injection Pump in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
16 WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running andat normaloperating temperature, monitor the DRB IIIt
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspectthe related wiring harness connectors. Look forbroken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes → Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No → Test Complete.
122
DRIVEABILITY - DIESEL
P2015-FUEL RAIL PRESSURE MALFUNCTION MAXIMUM FUEL FLOW
EXCEEDED —
Continued