Specifications

Symptom List:
P2511-EGR VALVE SIGNAL CIRCUIT SHORTED TO GROUND
P2527-EGR VALVE SIGNAL CIRCUIT OPEN CIRCUIT
P2527-EGR VALVE SIGNAL CIRCUIT SHORTED TO GROUND
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2511-EGR VALVE SIGNAL
CIRCUIT SHORTED TO GROUND.
POSSIBLE CAUSES
CHECKING THE ENGINE CONTROL RELAY SYSTEM
INTERMITTENT CONDITION
ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN
EGR VALVE CONTROL CIRCUIT SHORTED TO GROUND
EGR VALVE CONTROL CIRCUIT OPEN
EGR SOLENOID
ENGINE CONTROL MODULE
TEST ACTION APPLICABILITY
1 NOTE: If DTC P1611, P2306 or P2332 is present with this DTC, diagnose
DTCs P1611, P2306 or P2332 before diagnosing this DTC.
NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Perform several ignition cycles, turning the ignition off for at least 10 seconds
between each ignition cycle.
Monitor the DRB for ECM DTCs.
Did this DTC set again?
All
Yes → Go To 2
No → Go To 8
2 NOTE: Check the ECM for other ECM DTC’s related to circuits that are
open, shorted to ground or low voltage problems.
Does the DRB also display these type of DTC’s?
All
Yes → Go To 3
No → Go To 4
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DRIVEABILITY - DIESEL