Chrysler 300M 2002 Service Manual page 2572

P0344-CAMSHAFT POSITION SENSOR INTERMITTENT —
TEST
7 If there are no possible causes remaining, view repair.
Repair
8 Turn the ignition off.
Disconnect the CMP Sensor connector.
Disconnect the PCM connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance in the CMP Signal circuit from the CMP harness connector
to the appropriate terminal of special tool #8815.
Wiggle the related wire harness while taking this measurement.
Is the resistance below 5.0 ohms?
Yes → Go To 9
→ Repair the open/high resistance in the CMP Signal circuit.
No
9 Turn the ignition off.
Disconnect the PCM connector.
Disconnect the CMP Sensor connector.
Measure the resistance between ground and the CMP Signal circuit in the CMP
Sensor harness connector.
Wiggle the related wire harness while monitoring the resistance value.
Does the resistance stay below 100 ohms?
Yes → Repair the short to ground in the CMP Signal circuit.
→ Go To 10
No
10 Turn the ignition off.
Disconnect the CMP Sensor connector.
Ignition on, engine not running.
Measure the voltage on the CMP Signal circuit.
Wiggle the related wire harness while taking this measurement.
Does the voltage ever increase above 5.5 volts?
Yes → Repair the short to B+ voltage in the CMP Signal circuit.
→ Go To 11
No
11 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the CMP harness connector.
Measure the resistance between the 5 Volt Supply circuit and the signal circuit in the
CMP harness connector.
Wiggle the related wire harness while taking this measurement.
Is the resistance below 5.0 ohms?
Yes → Repair the short to the 5 Volt Supply circuit in the CMP Signal
→ Go To 12
No
ACTION
Replace the Camshaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - NGC
143
Continued
APPLICABILITY
All
All
All
All
All