Dodge Caliber. Manual — part 792
P0522-ENGINE OIL PRESSURE SWITCH CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W
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ENGINE ELECTRICAL DIAGNOSTICS - GPEC
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•
When Monitored:
With the ignition on and battery voltage greater than 10.4 volts.
•
Set Condition:
The PCM detects that the (G6) EOP Signal circuit is shorted low.
Possible Causes
INTERMITTENT DTC
(G6) EOP SIGNAL CIRCUIT SHORTED TO GROUND
(G6) EOP SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
ENGINE OIL PRESSURE SWITCH
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.
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.
(G6) EOP SIGNAL CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the Engine Oil Pressure Switch connector.
Disconnect the Powertrain Control Module (PCM) connector.
Measure the resistance between ground and the (G6) EOP Signal cir-
cuit in the Engine Oil Pressure Switch harness connector.
Is the resistance above 100 ohms?
Yes
>> Go to 3
No
>> Repair the (G6) EOP Signal circuit for a short to ground.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING).
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ENGINE ELECTRICAL DIAGNOSTICS - GPEC
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3.
(G6) EOP SIGNAL CIRCUIT OPEN CIRCUIT OR HIGH RESISTANCE
Measure the resistance of the (G6) EOP Signal circuit between the
Engine Oil Pressure Switch harness connector and the Powertrain Con-
trol Module (PCM) harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go to 4
No
>> Repair the (G6) EOP Signal circuit for an open circuit or
high resistance.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING).
4.
ENGINE OIL PRESSURE SWITCH
Turn the ignition off.
Connect the Powertrain Control Module (PCM) connector.
Turn the ignition on.
With the scan tool, select View DTCs.
NOTE: The PCM should display an Engine Oil Pressure Sensor Circuit High DTC with the switch discon-
nected.
Is the status Active for an Engine Oil Pressure Sensor Circuit High DTC with the switch disconnected?
Yes
>> Replace the Engine Oil Pressure Switch 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.
POWERTRAIN CONTROL MODULE (PCM)
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Oil Pressure
Switch 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.
Refer to any Technical Service Bulletins that may apply.
Were any problems found?
Yes
>> Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
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ENGINE ELECTRICAL DIAGNOSTICS - GPEC
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P0523-ENGINE OIL PRESSURE SWITCH CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W
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ENGINE ELECTRICAL DIAGNOSTICS - GPEC
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