Dodge Caliber. Manual — part 760
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT-BANK 1 SENSOR 1
For a complete wiring diagram Refer to Section 8W.
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 327
•
When Monitored:
With the engine cranking or running.
•
Set Condition:
The PCM detects an intermittent signal error from the Camshaft 1/1 Position Sensor. One Trip Fault. Three
good trips to turn off the MIL.
Possible Causes
CAMSHAFT 1/1 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS
CAMSHAFT 1/2 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS
CAMSHAFT 1/1, TONE WHEEL OR FLEX PLATE
CAMSHAFT 1/2, TONE WHEEL OR FLEX PLATE
CAMSHAFT 1/1 POSITION SENSOR
CAMSHAFT 1/2 POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
DTC IS ACTIVE
Ignition on, engine not running.
With the scan tool select View DTCs.
Record the related Freeze Frame data.
Start the engine and allow it to reach operating temperature.
WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands
near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in
personal injury or death.
NOTE: If the DTC does not reset it may be necessary to test drive the vehicle.
Is the status Active for this DTC?
Yes
>> Go to 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2.
CAMSHAFT 1/1 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Posi-
tion Sensor and the Powertrain Control Module (PCM).
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out or corroded terminals.
Inspect the Camshaft 1/1 Position Sensor for conditions such as loose mounting screws, damage, or cracks.
Were any problems found?
Yes
>> Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Go to 3
9 - 328
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
3.
CAMSHAFT 1/1 POSITION SENSOR IRREGULAR SIGNAL
Turn the ignition off.
Using a lab scope and the Miller special tool #6801, backprobe the
(K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor har-
ness connector.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Camshaft 1/1
Position Sensor while monitoring the lab scope screen.
Start the engine.
Monitor the Camshaft 1/1 Position Sensor signal on the lab scope
screen.
Were any Camshaft 1/1 Position Sensor signals irregular or
missing?
Yes
>> Go to 4
No
>> Go to 6
4.
CAMSHAFT 1/1, TONE WHEEL OR PULSE RING
Turn the ignition off.
Remove the Camshaft 1/1 Position Sensor.
Inspect the Camshaft 1/1 Position Sensor and mounting area for any condition that would result in an incorrect
signal, such as damage, foreign material or excessive movement.
Were any problems found?
Yes
>> Repair as necessary in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Go to 5
5.
CAMSHAFT 1/1 POSITION SENSOR
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Posi-
tion Sensor and the Powertrain Control Module (PCM).
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out or corroded terminals.
Were any problems found?
Yes
>> Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Replace the Camshaft 1/1 Position Sensor.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
6.
CAMSHAFT 1/2 POSITION SENSOR CIRCUIT WIRING OR CONNECTORS
Turn the ignition off.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Posi-
tion Sensor and the Powertrain Control Module (PCM).
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out or corroded terminals.
Inspect the Camshaft 1/2 Position Sensor for conditions such as loose mounting screws, damage, or cracks.
Were any problems found?
Yes
>> Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Go to 7
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 329
7.
CAMSHAFT 1/2 POSITION SENSOR IRREGULAR SIGNAL
Using a lab scope and the Miller special tool #6801, backprobe the
(K441) CMP 1/2 Signal circuit in the Camshaft 1/2 Position Sensor har-
ness connector.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Camshaft 1/2
Position Sensor while monitoring the lab scope screen.
Start the engine.
Monitor the Camshaft 1/2 Position Sensor signal on the lab scope
screen.
Were any Camshaft 1/2 Position Sensor signals irregular or
missing?
Yes
>> Go to 8
No
>> Go to 10
8.
CAMSHAFT 1/2, TONE WHEEL OR FLEX PLATE
Turn the ignition off.
Remove the Camshaft 1/2 Position Sensor.
Inspect the Camshaft 1/2 Position Sensor and mounting area for any condition that would result in an incorrect
signal, such as damage, foreign material, or excessive movement.
Were any problems found?
Yes
>> Repair as necessary in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Go to 9
9.
CAMSHAFT 1/2 POSITION SENSOR
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Posi-
tion Sensor and the Powertrain Control Module (PCM).
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out or corroded terminals.
Were any problems found?
Yes
>> Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Replace the Camshaft 1/2 Position Sensor.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
9 - 330
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст