Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURES - P0105-INLET PRESSURE SENSOR SIGNAL PLAUSIBILITY
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
If DTC P0641, P0651 or P0697 is present with this DTC, diagnose DTCs P0641, P0651 or P0697 before diagnosing this DTC.
NOTE:
If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the DRB at the same time the DTC is displayed.
NOTE:
Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC. Turn the ignition on.With the DRB, erase ECM DTCs.Turn the ignition off, wait 30 seconds.Test drive the vehicle.With the DRB, read ECM DTCs.Did this DTC set again?Yes --> Go To 2No --> Go To 7 |
All |
| 2 | Turn the ignition off. Remove and inspect the Air Filter for soiling or excessive dirt and debris which may cause air flow restriction. Were any of these problems found? Yes --> Replace the Air Filter element. Perform ROAD TEST VERIFICATION - VER-2 . No --> Go To 3 |
All |
| 3 |
NOTE:
Inspect all air intake and turbocharger related tubes for damage, restriction or poor connection. Any of these conditions can cause a this DTC to set. Turn the ignition off.Inspect all air intake and turbocharger related tubes and connections.were any problems found?Yes --> Repair or replace as necessary.Perform ROAD TEST VERIFICATION - VER-2 .No --> Go To 4 |
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| 4 | Turn the ignition off. Disconnect the Inlet Pressure Sensor harness connector. Disconnect the ECM harness connectors. Measure the resistance of the Inlet Pressure Sensor Signal circuit. Is the resistance below 10.0 ohms? Yes --> Go To 5 No --> Repair the Inlet Pressure Sensor Signal circuit for high resistance. Perform ROAD TEST VERIFICATION - VER-2 . |
All |
| 5 | Turn the ignition off. Disconnect the Inlet Pressure Sensor harness connector. Disconnect the ECM harness connectors. Measure the resistance of the Inlet Pressure Sensor Ground circuit. Is the resistance below 10.0 ohms? Yes --> Go To 6 No --> Repair the Inlet Pressure Sensor Ground circuit for high resistance. Perform ROAD TEST VERIFICATION - VER-2 . |
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| 6 | Turn the ignition off. Disconnect the Inlet Pressure Sensor harness connector. Disconnect the ECM harness connectors. Measure the resistance of the Inlet Pressure Sensor 5-volt Supply circuit. Is the resistance below 10.0 ohms? Yes --> Replace the Inlet Pressure Sensor. Perform ROAD TEST VERIFICATION - VER-2 . No --> Repair the Inlet Pressure Sensor 5 Volt Supply circuit for high resistance. Perform ROAD TEST VERIFICATION - VER-2 . |
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| 7 |
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.
NOTE:
The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition. With the engine running at normal operating temperature, monitor the DRB parameters related to the DTC while wiggling the wiring harness. Look for parameter values to change and/or a DTC to set.Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the conditions under which the DTC was set.Refer to any Technical Service Bulletins (TSB) that may apply.Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.Were any of the above conditions present?Yes --> Repair as necessary.Perform ROAD TEST VERIFICATION - VER-2 .No --> Test Complete. |
All |