ignition DODGE RAM SRT-10 2006 Service Repair Manual

2.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
connected?
Ye s>>
Replace the Wastegate Solenoid.
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 3
3.(F504) FUSED IGNITION SWITCH OUTPUT OPEN
Connect an test light between the Wastegate Solenoid connector Fused
ignition switch output circuit and battery negative.
Compare the test light brightness to that of a direct connection to the
battery.
Does the light illuminate brightly?
Ye s>>
Go To 4
No>>
Repair the open (F504) Fused Ignition switch output circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

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
connected?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS
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)

When Monitored:
When the ignition is on.
Set Condition:
The ECM detects a discrepancy between the PWM supplied to the Electronic Fuel Control Actuator and the
PWM returned from the Electronic Fuel Control Actuator.
Possible Causes
FUEL PUMP
(K181) FUEL CONTROL ACTUATOR DRIVER OPEN
(K31) RETURN CIRCUIT OPEN FROM FCA TO ECM
(K181) FUEL CONTROL ACTUATOR DRIVER CIRCUIT SHORTED TO EXTERNAL VOLTAGE
(K31) FUEL CONTROL ACTUATOR RETURN CIRCUIT SHORTED TO EXTERNAL VOLTAGE
(K31) FCA RETURN CIRCUIT SHORTED TO (K181) FCA DRIVER CIRCUIT
(K181) FUEL CONTROL ACTUATOR DRIVER CIRCUIT SHORTED TO GROUND
(K181) FUEL CONTROL ACTUATOR DRIVER CIRCUIT SHORTED TO ANOTHER CIRCUIT
(K31) FUEL CONTROL ACTUATOR RETURN CIRCUIT SHORTED TO ANOTHER CIRCUIT
INTERMITTENT CONDITION
ECM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.FUEL PUMP
Ignition on, engine not running.
Disconnect the Fuel Control Actuator (FCA) harness connector.
Connect an incandescent test light across the Fuel Control Actuator
driver circuit and the Fuel Control Actuator return circuit at the fuel con-
trol actuator harness connector.
Observe the test light.
The ECM will perform a self test of the circuit which should momentarily
flash the test light brightly, one time, approximately 20 seconds after
being connected.
NOTE: Check connectors - Clean/repair as necessary.
NOTE: Compare test light brightness to that of a direct connection
to the battery.
Did the light flash brightly?
Ye s>>
Replace the Fuel Pump.
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 2

2.(K181) FUEL CONTROL ACTUATOR DRIVER OPEN
Turn the ignition off.
Disconnect the ECM harness connectors.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the FCA driver circuit between the electronic
fuel control actuator harness connector and the ECM harness connec-
tor.
Is the resistance less than 10 Ohms?
Ye s>>
Go To 3
No>>
Repair the (K181) Fuel Control Actuator Driver circuit
OPEN.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
3.(K31) RETURN CIRCUIT OPEN
Measure the resistance of the (K31) return circuit between the FCA har-
ness connector and the ECM harness connector.
Is the resistance less than 10 Ohms?
Ye s>>
Go To 4
No>>
Repair or replace the engine wiring harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

10.ECM
Reconnect the ECM harness connectors.
Ignition on, engine not running.
Disconnect the Electronic Fuel Control Actuator connector.
Connect an incandescent test light across the Fuel Control Actuator
driver pin and the Fuel Control Actuator return wire at the fuel control
actuator connector.
Observe the test light.
The ECM will perform a self test of the circuit which should momentarily
flash the test light brightly, one time, approximately 20 seconds after
being connected.
NOTE: Compare test light brightness to that of a direct connection
to the battery.
Did the light flash brightly?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS
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)

When Monitored:
Whileengineisrunning.
Set Condition:
The boost pressure is lower than the expected boost pressure based on engine operating conditions.
Possible Causes
OTHER DTC’S
INTAKE AIR SYSTEM RESTRICTION
TURBO CHARGER DAMAGED
INTAKE AIR SYSTEM LEAK
BOOST PRESSURE SENSOR
BOOST PRESSURE SENSOR
TURBOCHARGER
INTERMITTENT CONDITION
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.OTHER DTC’S
Turn the ignition on.
With the scan tool, read the Engine DTC’s.
Do you have other DTC’s?
Ye s>>
Repair other boost related DTC’s first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 2
2.INTAKE AIR SYSTEM RESTRICTION
Inspect the air filter and intake air system for signs of restriction.
Were any restrictions found?
Ye s>>
Replace the Air Filter or repair the Intake air system for restriction.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 3
3.TURBO CHARGER DAMAGED
Disconnect the air cleaner connection to the turbo charger.
Using the service manual as a guide, visually inspect the turbo charger blades and turbo housing for signs of dam-
age.
Was any damaged found?
Ye s>>
Replace The Turbo charger.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 4

4.INTAKE AIR SYSTEM LEAK
Using Miller Special tool # 9022, pressurize the intake air system and inspect for leakage.
Use the service manual as a guide.
Were any leaks detected?
Ye s>>
Repair leaking intake air system.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 5
5.BOOST PRESSURE SENSOR
Using the scan tool, compare the boost pressure sensor reading with the ambient air pressure sensor with the igni-
tion turned on.
Are the boost pressure and ambient air pressure sensors within 6 in hg of eachother?
Ye s>>
Go To 6
No>>
Replace the Boost pressure sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
6.BOOST PRESSURE SENSOR
Turn the ignition off.
Install Miller special tool #9022.
Ignition on, engine not running.
Use the scan tool and compare boost pressure reading to the regulated air pressure for tool #9022.
NOTE: The reading on the boost pressure sensor may be slightly lower than the regulated pressure.
Does the boost pressure sensor reading increase with the regulated air pressure?
Does the boost pressure sensor reading increase with the regulated air pressure?
Ye s>>
Go To 7
No>>
Replace the Boost Pressure sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
7.TURBOCHARGER
Disconnect the exhaust outlet connection.
Visually inspect the Wastegate flap in the turbocharger turbine housing
Is the Wastegate seized in the open position?
Ye s>>
Replace the Turbocharger.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Te s t C o m p l e t e .

11 .(K853) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
Measure the resistance between the (K853) 5-volt supply circuit and
ground.
Is the resistance greater than 100k Ohms?
Ye s>>
Go To 12
No>>
Repair the short circuit or replace the engine harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
12.(K24) SIGNAL CIRCUIT SHORTED TO (K853) 5-VOLT SUPPLY CIRCUIT
Measure the resistance between the (K24) signal circuit and the (K853)
5-volt supply circuit in the sensor connector.
Is the resistance greater than 100k Ohms?
Ye s>>
Go To 13
No>>
Repair the short circuit or replace the engine harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
13.ECM
Reconnect the ECM harness connectors.
Ignition on, engine not running.
With the scan tool, erase DTCs.
Connect a jumper wire between the sensor supply circuit and the sen-
sor return circuit in the sensor harness connector.
Did DTC P0337 set?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure).
(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

9.(K24) SIGNAL CIRCUIT SHORTED TO (K853) 5-VOLT SUPPLY CIRCUIT
Measure the resistance between the (K24) signal circuit and the (K853)
5-volt supply circuit in the sensor connector.
Is the resistance greater than 100k Ohms?
Ye s>>
Go To 10
No>>
Repair the short circuit or replace the engine harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
10.ECM
Reconnect the ECM harness connectors.
Ignition on, engine not running.
With the scan tool, erase DTCs.
Connect a jumper wire between the sensor supply circuit and the sen-
sor return circuit in the sensor harness connector.
Did DTC P0337 set?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure).
(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

3.(K853) 5-VOLT SUPPLY CIRCUIT SHORTED BATTERY NEGATIVE
Measure the resistance between the (K853) 5-volt supply circuit and
battery negative.
Is the resistance greater than 100k Ohms?
Ye s>>
Go To 4
No>>
Repair the short circuit or replace the engine harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
4.ECM
Reconnect the ECM harness connectors.
Ignition on, engine not running.
Connect a jumper wire between the sensor (K853) 5-volt supply circuit
in the sensor harness connector 12-volts.
Did DTC P0338 set?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)