Chrysler Crossfire. Manual — part 591
(P0521) ENGINE OIL SENSOR LEVEL PERFORMANCE (CONTINUED)
7.
MEASURE THE 5-VOLT SUPPLY CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the 5-Volt Supply circuit at the Oil Sensor har-
ness connector.
Is the voltage between 4.7 and 5.2 volts?
Yes
>> Replace and program the Powertrain Control Module.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN
CONTROL
MODULE
-
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> Go To 8
8.
MEASURE THE 5-VOLT SUPPLY CIRCUIT VOLTAGE WITH MAP SENSOR DISCONNECTED
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the 5-Volt Supply circuit at the Oil Sensor har-
ness connector.
Is the voltage 4.7 – 5.2 volts?
Yes
>> Replace the Manifold Absolute Pressure Sensor. (Refer to
14 - FUEL SYSTEM/FUEL INJECTION/MAP SENSOR -
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> If the voltage is above 5.2 volts, Go To 9
If the voltage is below 4.7 volts, Go To 10
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(P0521) ENGINE OIL SENSOR LEVEL PERFORMANCE (CONTINUED)
9.
5-VOLT SUPPLY SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the PCM C3 harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the 5-Volt Supply circuit at the Oil Sensor har-
ness connector.
Is the voltage below 1.0 volt?
Yes
>> Replace and program the Powertrain Control Module.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN
CONTROL
MODULE
-
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> Repair the 5-Volt Supply circuit for a short to voltage.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
10.
5-VOLT SUPPLY CIRCUIT OPEN
Turn the ignition off.
Disconnect the PCM C3 harness connector.
Note: Check connectors — Clean/repair as necessary.
Measure the resistance of the 5-Volt Supply circuit from the Oil Sensor
harness connector to the PCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 11
No
>> Repair the 5-Volt Supply circuit for an open.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
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ENGINE - ELECTRICAL DIAGNOSTICS
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(P0521) ENGINE OIL SENSOR LEVEL PERFORMANCE (CONTINUED)
11.
5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
With the ignition off.
Measure the resistance between ground and the 5-Volt Supply circuit.
Is the resistance above 100 kohms?
Yes
>> Go To 12
No
>> Repair the 5-Volt Supply circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
12.
5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
With the ignition off.
Measure the resistance between the Sensor Ground circuit and the
5-Volt Supply circuit at the Oil Sensor harness connector.
Is the resistance above 100 kohms?
Yes
>> Replace and program the Powertrain Control Module.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN
CONTROL
MODULE
-
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> Repair the 5-Volt Supply circuit for a short to the Sensor
Ground circuit.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
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(P0521) ENGINE OIL SENSOR LEVEL PERFORMANCE (CONTINUED)
13.
MEASURE THE OIL SENSOR SIGNAL CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the Oil Sensor harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Oil Sensor Signal circuit at the Oil Sensor
harness connector.
Is the voltage 4.7 – 5.2 volts?
Yes
>> Go To 14
No
>> If the voltage is above 5.2 volts, Go To 16
If the voltage is below 4.7 volts, Go To 18
14.
SENSOR GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the PCM C3 harness connector.
Note: Check connectors — Clean/repair as necessary.
Measure the resistance of the Sensor Ground circuit from the Oil Sen-
sor harness connector to the PCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 15
No
>> Repair the Sensor Ground circuit for an open.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
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