Dodge Caliber. Manual — part 915
Inspect the related wire harness and the splices in the CKP circuits.
Were any problems found?
Yes
>> Repair the wiring/connector concerns as needed or replace the Crankshaft Position Sensor.
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No
>> Test Complete.
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 947
P0045 - TURBOCHARGER BOOST CONTROL CIRCUIT/OPEN
For a complete wiring diagram Refer to Section 8W
9 - 948
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
•
When Monitored:
With the ignition on and the Boost Pressure command off.
•
Set Condition:
The ECM detects that the (K137) Boost Pressure Control circuit is open for 2.0 seconds.
Possible Causes
INTERMITTENT DTC
(K344) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE
(K137) BOOST PRESSURE CONTROL CIRCUIT SHORTED TO GROUND
(K137) BOOST PRESSURE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
VALVE BLOCK ASSEMBLY
ENGINE CONTROL MODULE (ECM)
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, Clear DTCs in the Engine Control Module (ECM).
With the scan tool, actuate the Boost Pressure at 100%.
Monitor the scan tool for at least two minutes.
With the scan tool, select View DTCs.
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.
(K344) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE
Turn the ignition off.
Disconnect the Valve Block Assembly harness connector.
Turn the ignition on.
Using a 12 volt test light connected to ground, check the (K344) Fused
Main Relay Output circuits in the Valve Block Assembly harness con-
nector.
NOTE: The test light should be illuminated and bright. Compare
the brightness to that of a direct connection to the battery.
Is the test light illuminated and bright for each circuit?
Yes
>> Go to 3
No
>> Repair the (K344) Fused Main Relay Output circuit(s) for an
open circuit or high resistance.
Perform the ECM Verification Test Ver. 1. (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 949
3.
(K137) BOOST PRESSURE CONTROL CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the Engine Control Module (ECM) harness connector.
Measure the resistance between ground and the (K137) Boost Pressure
Control circuit in the Valve Block Assembly harness connector.
Is the resistance above 10.0 ohms?
Yes
>> Go to 4
No
>> Repair the (K137) Boost Pressure Control circuit for a short
to ground.
Perform the ECM Verification Test Ver. 1. (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
4.
(K137) BOOST PRESSURE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
Measure the resistance of the (K137) Boost Pressure Control circuit
between the Valve Block Assembly harness connector and the Engine
Control Module (ECM) harness connector.
Is the resistance below 10.0 ohms?
Yes
>> Go to 5
No
>> Repair the (K137) Boost Pressure Control circuit for an
open circuit or high resistance.
Perform the ECM Verification Test Ver. 1. (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
5.
VALVE BLOCK ASSEMBLY
Connect the Engine Control Module (ECM) harness connector.
Turn the ignition on.
With the scan tool, actuate the Boost Pressure (Boost Pressure Actuator) to 100%.
Using a 12 volt test light connected to 12 volts, check the (K137) Boost Pressure Control circuit in Valve Block
Assembly harness connector.
NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connec-
tion to the battery.
NOTE: The circuit will remain actuated by the controller for 30 seconds. Be certain the actuation is active
when checking the circuit.
With the scan tool, actuate the Boost Pressure (Boost Pressure Actuator) to 0%.
9 - 950
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст