TEST
ACTION
APPLICABILITY
12
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 and at normal operating temperature, monitor the DRB III
t
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 inspect the related wiring harness connectors. Look for broken, 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.
13
Refer to the appropriate Service Information and refer to Diagnosis and Testing Fuel
Delivery System table.
NOTE: The following is a list of problems that can cause fuel pressure to
deviate from specification: restricted fuel filter or fuel lines, failed fuel
pressure solenoid, air in fuel system, failed fuel sending unit, contaminated
fuel, faulty injector.
Were there any problems with the Fuel Delivery System?
All
Yes
→ Repair as necessary in accordance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 14
14
Refer to each of the following symptoms in the Driveability category.
CHECKING THE FUEL PRESSURE SOLENOID CIRCUITS
CHECKING THE FUEL PRESSURE SENSOR CIRCUITS
Were any problems found?
All
Yes
→ Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 15
15
Turn the ignition off.
Replace the Fuel Pressure Solenoid in accordance with the Service Information.
Turn the ignition on.
With the DRBIII
t, erase the ECM DTCs.
Attempt to start and test drive the vehicle.
With the DRBIII
t, read the ECM DTCs.
Does the ECM display this DTC?
All
Yes
→ Replace the Fuel Pump in accordance with the Service Informa-
tion.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Test Complete.
175
DRIVEABILITY - DIESEL
P1130-FUEL RAIL PRESSURE MALFUNCTION LEAKAGE DETECTED —
Continued