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Home >> Chrysler >> 2004 >> Sebring Limited, 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Powertrain Diagnostic Procedures - NGC DRIVEABILITY Symptoms, NGC DRIVEABILITY Diagnostic Tests DTCS P0016 To P0461 - Except Coupe >> DRIVEABILITY - NGC - Diagnostic Tests >> DTC P0340: Camshaft Position Sensor Circuit >> Possible Causes

Possible Causes

INTERMITTENT CRANKSHAFT POSITION SENSOR SIGNAL

INTERMITTENT CAMSHAFT POSITION SENSOR SIGNAL

(K6) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND

(K6) 5 VOLT SUPPLY CIRCUIT OPEN

(K6) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE

(K44) CMP SIGNAL CIRCUIT SHORTED GROUND

(K44) CMP SIGNAL CIRCUIT OPEN

(K44) CMP SIGNAL CIRCUIT SHORTED TO VOLTAGE

(K44) CMP SIGNAL SHORTED TO (K6) 5 VOLT SUPPLY CIRCUIT

(K4) SENSOR GROUND CIRCUIT OPEN

PCM - (K6) 5 VOLT SUPPLY

PCM - (K44) CMP SIGNAL

CAMSHAFT POSITION SENSOR

DIAGNOSTIC PROCEDURE - P0340-CAMSHAFT POSITION SENSOR CIRCUIT

TEST ACTION
1 Start the engine.
With the DRBIII®, read the CMP SYNC State.
Does the DRBIII® display the CMP SYNC State IN SYNC?
  1. Yes --> Go To 2
  2. No --> Go To 4
2 Turn the ignition off.
With the DRBIII® lab scope probe and the Miller special tool #6801, back probe the (K24) CKP signal circuit in the CKP harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.

Ignition on, engine not running.
Wiggle the related wire harness and lightly tap the Crankshaft Position Sensor.
Observe the lab scope screen.
Start the engine.
Allow the engine to idle.
Observe the lab scope screen.
Did the CKP Sensor generate any erratic pulses?
  1. Yes --> Repair as necessary.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 3
3 Turn the ignition off.
With the DRBIII® lab scope probe and the Miller special tool #6801, backprobe the (K44) CMP Signal circuit in the CMP harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.

Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Camshaft Position Sensor.
Observe the lab scope screen.
Start the engine.
Allow the engine to idle.
Observe the lab scope screen.
Did the CMP Sensor generate any erratic pulses?
  1. Yes --> Repair as necessary.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Test Complete.
4 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K6) 5 Volt Supply circuit in the CMP Sensor harness connector.
Is the voltage between 4.5 and 5.5 volts?
  1. Yes --> Go To 5
  2. No --> Go To 13
5 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K44) CMP Signal circuit in the CMP Sensor harness connector.
Is the voltage between 4.5 and 5.0 volts?
  1. Yes --> Go To 6
  2. No --> Go To 8
6 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the (K4) Sensor Ground circuit from the CMP Sensor harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
  1. Yes --> Go To 7
  2. No --> Repair the open in the (K4) Sensor Ground circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
7
NOTE: Inspect the Camshaft sprocket for damage per the Service Information. If a problem is found repair as necessary.
If there are no possible causes remaining, view repair.Repair:Replace the Camshaft Position Sensor.Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
8 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K44) CMP Signal circuit in the CMP Sensor harness connector.
Is the resistance below 100 ohms?
  1. Yes --> Repair the short to ground in the (K44) CMP Signal circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 9
9 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the (K44) CMP Signal circuit from the CMP Sensor harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
  1. Yes --> Go To 10
  2. No --> Repair the open in the (K44) CMP Signal circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
10 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K44) CMP Signal circuit in the CMP Sensor harness connector.
Is the voltage above 5.2 volts?
  1. Yes --> Repair the short to battery voltage in the (K44) CMP Signal circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 11
11 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Measure the resistance between the (K44) CMP Signal circuit and the (K6) 5 Volt Supply circuit in the CMP Sensor harness connector.
Is the resistance below 5.0 ohms?
  1. Yes --> Repair the (K44) CMP Signal circuit shorted to the (K6) 5 Volt Supply circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 12
12
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.Repair:Replace and program the Powertrain Control Module in accordance with the Service Information.Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
13 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K6) 5 Volt Supply circuit in the CMP Sensor harness connector.
Is the resistance below 100 ohms?
  1. Yes --> Repair the short to ground in the (K6) 5 Volt Supply circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 14
14 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the (K6) 5 Volt Supply circuit between the CMP Sensor harness connector and the special tool #8815 terminal.
Is the resistance below 5.0 ohms?
  1. Yes --> Go To 15
  2. No --> Repair the open in the (K6) 5 Volt Supply circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
15 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K6) 5 Volt Supply circuit in the CMP Sensor harness connector.
Is the voltage above 5.5 volts?
  1. Yes --> Repair the short to battery voltage in the (K6) 5 Volt Supply circuit.

    Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .

  2. No --> Go To 16
16
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.Repair:Replace and program the Powertrain Control Module in accordance with the Service Information.Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC .
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