Chrysler Sebring 2004 Service Manual page 2040

P0340-NO CAM SIGNAL AT PCM —
TEST
2 Turn the ignition off.
With the DRBIII lab scope probe and the Miller special tool #6801, back probe the
(K24) CKP Sensor signal circuit in the PCM 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.
Turn the ignition on. (do not start or crank the engine)
Observe the lab scope screen.
Look for any pulses generated by the CKP Sensor.
Did the CKP Sensor generate any pulses?
Yes → Replace the Crankshaft Position Sensor.
No
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 PCM 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.
Turn the ignition on. (do not start or crank the engine)
Observe the lab scope screen.
Look for any pulses generated by the CMP Sensor.
Did the CMP Sensor generate any pulses?
Yes → Replace the Camshaft Position Sensor.
No
4 Turn the ignition off.
With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the
(K44) CMP Signal circuit in the PCM 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.
Start the engine.
Observe the lab scope screen while wiggling the wiring harness and connectors.
Were there any irregularities in the lab scope pattern?
Yes → Check the harness connectors carefully. If OK, replace the Cam-
No
5 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the (K7) 8-volt Supply circuit in the CMP Sensor harness
connector.
Is the voltage between 7.5 and 8.5 volts?
Yes → Go To 6
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Go To 3
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Go To 4
shaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Go To 14
DRIVEABILITY - GAS
Continued
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APPLICABILITY
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