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Symptom:
P0403-EGR SOLENOID CIRCUIT SHORT CIRCUIT
When Monitored and Set Condition:
P0403-EGR SOLENOID CIRCUIT SHORT CIRCUIT
When Monitored: With the ignition on.
Set Condition: The ECM detects excessive current draw on the EGR Solenoid Control
circuit.
INTERMITTENT CONDITION
EGR SOLENOID
EGR SOLENOID CONTROL SHORTED TO VOLTAGE
ENGINE CONTROL MODULE - INTERNAL
ENGINE CONTROL MODULE - INTERNAL SHORT TO VOLTAGE
TEST
1
Turn the ignition on.
With the DRB, erase ECM DTCs.
Test drive the vehicle and monitor the DRB for ECM DTCs.
Did this DTC set again?
Yes → Go To 2
→ Go To 5
No
2
Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Monitor the DRB for ECM DTCs.
Does the DRB display P0403 EGR OPEN CIRCUIT?
Yes → Replace the EGR Solenoid.
→ Go To 3
No
3
Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Measure the voltage of the EGR Solenoid Control circuit at the EGR Solenoid
harness connector.
Is the voltage below 0.5 volt?
Yes → Replace and program the Engine Control Module in accordance
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform ROAD TEST VERIFICATION - VER-2.
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
DRIVEABILITY - DIESEL
91
APPLICABILITY
All
All
All
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