Dodge Ram Truck 1500-2500-3500. Manual — part 1065
P0243-WASTEGATE PRESSURE CONTROL PWM (CONTINUED)
4.
(K139) WASTEGATE SOLENOID DRIVER CIRCUIT OPEN
Disconnect the ECM harness connectors.
Measure the resistance of the Wastegate Solenoid driver circuit
between the Wastegate Solenoid harness connector and the ECM har-
ness connector.
Is the resistance less than 10 Ohms?
Yes
>> Go To 5
No
>> Repair the open (K139) Wastegate Solenoid control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
5.
(K139) WASTEGATE SOLENOID CIRCUIT SHORTED TO GROUND
Measure the resistance of the (K139) Wastegate Solenoid driver circuit
between the Wastegate Solenoid harness connector and battery neg-
ative.
Is the resistance less than 10 Ohms?
Yes
>> Repair the (K139) Wastegate solenoid circuit shorted to
ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
No
>> Go To 6
9 - 1182
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0243-WASTEGATE PRESSURE CONTROL PWM (CONTINUED)
6.
(K139) WASTEGATE SOLENOID DRIVER SHORTED TO VOLTAGE
Measure the voltage between the (K139) Wastegate Solenoid driver
circuit at the Wastegate Solenoid connector and battery negative.
Is the voltage less than 1 volt?
Yes
>> Go To 7
No
>> Repair the (K139) Wastegate solenoid driver shorted to
voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
7.
(K139) WASTEGATE SOLENOID DRIVER CIRCUIT SHORTED TO ANOTHER CIRCUIT
Measure the resistance between the (K139) Wastegate Solenoid driver
circuit in the ECM harness connector and all other circuits in the ECM
harness connectors.
Is the resistance less than 10 Ohms?
Yes
>> Repair the (K139) Wastegate solenoid circuit shorted to
another circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL).
No
>> Go To 8
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1183
P0243-WASTEGATE PRESSURE CONTROL PWM (CONTINUED)
8.
WASTEGATE SOLENOID
Reconnect the ECM harness connector.
Reconnect the disconnected Wastegate Solenoid harness connector.
Turn the Ignition on, engine not running.
Disconnect the Wastegate Solenoid harness connector.
Connect an incandescent test light across the supply and driver pins
at the Wastegate Solenoid harness connector.
NOTE: The ECM will perform a self check of the circuit after
approximately 30 seconds, which should light the incandescent
test light.
Does the light illuminate brightly after 30 seconds of being con-
nected?
Yes
>> Refer to the INTERMITTENT CONDITION Symptom
(Diagnostic Procedure). (Refer to 9 - ENGINE - DIAGNO-
SIS AND TESTING)
No
>> Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
9 - 1184
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0251-CP3 PUMP REGULATOR CONTROL
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1185
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