Table of Contents
Advertisement
Symptom:
P1270-INTAKE PORT SWIRL ACTUATOR SHORT CIRCUIT
When Monitored and Set Condition:
P1270-INTAKE PORT SWIRL ACTUATOR SHORT CIRCUIT
When Monitored: With the ignition on and the ECM attempting to actuate the Intake
Port Swirl Actuator.
Set Condition: The ECM detects excessive current on the Intake Port Swirl Actuator
Control circuit.
INTERMITTENT CONDITION
SWIRL SOLENOID
SWIRL SOLENOID CONTROL SHORT TO VOLTAGE
ECM
TEST
1
Turn the ignition on.
With the DRB, erase ECM DTCs.
With the DRBIII , actuate the Swirl Solenoid.
With the DRBIII , read the ECM DTCs.
Did this DTC set again?
Yes → Go To 2
→ Go To 4
No
2
Turn the ignition off.
Disconnect the Swirl Solenoid harness connector.
Disconnect the ECM harness connectors.
Remove the ASD Relay from the PDC.
Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay connector.
Turn the ignition on.
Measure the voltage of the Swirl Solenoid Control circuit.
Is the voltage below 1.0 volt?
Yes → Go To 3
→ Repair the Swirl Solenoid Control circuit for a short to voltage.
No
POSSIBLE CAUSES
ACTION
Perform ROAD TEST VERIFICATION - VER-2.
DRIVEABILITY - DIESEL
179
APPLICABILITY
All
All
Advertisement
Table of Contents
