Chrysler Sebring 2004 Service Manual page 2117

DRIVEABILITY - GAS
P1391-INTERMITTENT LOSS OF CMP OR CKP —
TEST
12 Turn the ignition off.
With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the
CKP 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 Crank-
→ Go To 13
No
13 Turn the ignition off.
With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the
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-
→ Refer to the INTERMITTENT CONDITION symptom in the
No
ACTION
shaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
shaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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All