Dodge Ram Truck 1500-2500-3500. Manual — part 1040
P0107-INLET AIR PRESSURE SENSOR VOLTAGE TOO LOW (CONTINUED)
6.
(K616) SIGNAL CIRCUIT OPEN
Measure the resistance between the (K616) signal circuit in the Inlet
Air Pressure sensor harness connector and the (K616) signal circuit in
the ECM harness connector.
Is the resistance less than 10 Ohms?
Yes
>> Go To 7
No
>> Repair or replace the open wiring harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
7.
(K668) 5-VOLT SUPPLY CIRCUIT OPEN
Measure the resistance between the (K668) 5-volt supply circuit in the
Inlet Air Pressure sensor harness connector with the (K668) 5-volt
supply circuit in the ECM harness connector.
Is the resistance less than 10 Ohms?
Yes
>> Go To 8
No
>> Repair 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)
9 - 1082
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0107-INLET AIR PRESSURE SENSOR VOLTAGE TOO LOW (CONTINUED)
8.
(K616) SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the (K616) signal circuit in the inlet
Air Pressure sensor connector and battery negative.
Is the resistance greater than 100 K Ohms?
Yes
>> Go To 9
No
>> Repair the (K616) signal circuit shorted to ground or
replace the wire harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
9.
(K668) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
Measure the resistance between the (K668) 5-volt supply Circuit in the
Inlet Air Pressure sensor harness connector and battery negative.
Is the resistance greater than 100 K Ohms?
Yes
>> Go To 10
No
>> Repair the (K668) 5-volt supply circuit shorted to ground or
replace the wire harness. (Refer to 8 - ELECTRICAL/
ELECTRONIC CONTROL MODULES/ENGINE CONTROL
MODULE - DIAGNOSIS AND TESTING)
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1083
P0107-INLET AIR PRESSURE SENSOR VOLTAGE TOO LOW (CONTINUED)
10.
ECM
Install the ECM harness connector.
Turn the ignition on.
While monitoring scan tool, use a jumper wire to connect the (K668)
5-volt supply circuit with the (K616) signal circuit at the sensor harness
connector.
Does the scan tool show a pressure sensor out of range high
DTC?
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/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
9 - 1084
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0108-INLET AIR Pressure Sensor Voltage Too high
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1085
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