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DRIVEABILITY - DIESEL
P0201-CYLINDER 1-INJECTOR CIRCUIT CURRENT DECREASE —
Continued
ENGINE CONTROL MODULE
INTERMITTENT CONDITION
FUEL INJECTOR CONTROL CIRCUIT SHORTED TO VOLTAGE
COMMON DRIVER CIRCUIT SHORTED TO VOLTAGE
FUEL INJECTOR CONTROL CIRCUIT SHORTED TO GROUND
COMMON DRIVER CIRCUIT SHORTED TO GROUND
FUEL INJECTOR CIRCUITS SHORTED TOGETHER
FUEL INJECTOR CONTROL CIRCUIT OPEN
COMMON DRIVER CIRCUIT OPEN
FUEL INJECTOR
TEST
1
Turn the ignition on.
With the DRBIII , erase the ECM DTCs.
Test drive the vehicle.
With the DRBIII , read the ECM DTCs.
Did this DTC set again?
Yes → Go To 2
→ Go To 10
No
2
Turn the ignition off.
Disconnect the appropriate Cylinder Fuel Injector 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 appropriate Fuel Injector Control circuit.
Is the voltage above 1.0 volt?
Yes → Repair the Fuel Injector Control circuit for a short to voltage.
→ Go To 3
No
3
Turn the ignition off.
Disconnect the Cylinder Fuel Injector 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 Common Driver circuit.
Is the voltage above 1.0 volt?
Yes → Repair the Common Driver circuit for a short to voltage.
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
50
APPLICABILITY
All
All
All
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