Chrysler Crossfire. Manual — part 559
(P0306) CYLINDER #6 MISFIRE (CONTINUED)
2.
INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Note: Check connectors — Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using
the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the
wires while checking for shorts and open circuits.
Note: Check for any Technical Service Bulletins that may apply.
Were there any problems found?
Yes
>> Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No
>> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for
a possible intermittent condition.
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ENGINE - ELECTRICAL DIAGNOSTICS
9 - 381
(P0325) KNOCK SENSOR 1 CIRCUIT LOW
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ENGINE - ELECTRICAL DIAGNOSTICS
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(P0325) KNOCK SENSOR 1 CIRCUIT LOW (CONTINUED)
When Monitored and Set Condition
•
When Monitored: With the Engine at operating temperature, engine speed greater than 2000 RPM, load
greater than 40%, and Anti-Knock control not active.
•
Set Condition: Lower limit: Knock Sensor voltage is less than 0.10 volts. Upper limit: Knock Sensor voltage is
greater than 4.98 volts.
POSSIBLE CAUSES
KNOCK SENSOR SIGNAL CIRCUIT OPEN
KNOCK SENSOR SIGNAL CIRCUIT SHORT TO GROUND
KNOCK SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
SENSOR GROUND CIRCUIT OPEN
SENSOR GROUND CIRCUIT SHORT TO GROUND
SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
KNOCK SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
KNOCK SENSOR
POWERTRAIN CONTROL MODULE
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Always perform diagnostics with a fully charged battery.
Note: Check connectors — Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Note: Check for applicable TSBs related to the problem.
Turn the ignition on.
With the DRB III
T
, read PCM DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Perform this procedure prior to symptom diagnosis.
Continue
Go To 2
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ENGINE - ELECTRICAL DIAGNOSTICS
9 - 383
(P0325) KNOCK SENSOR 1 CIRCUIT LOW (CONTINUED)
2.
CHECK FOR CURRENT DTC
Turn the ignition on.
With the DRB III
T
, read PCM DTCs.
Is this DTC present?
Yes
>> Go To 3
No
>> Go To 11
3.
KNOCK SENSOR RESISTANCE
Turn the ignition off.
Disconnect PCM C3 harness connector.
Note: Check connectors — Clean/repair as necessary.
Measure the resistance of the Knock Sensor at the PCM C3 harness
connector.
Is the resistance 4-5 megohms?
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 4
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ENGINE - ELECTRICAL DIAGNOSTICS
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