Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS PROCEDURE - P2433-MAF SENSOR LOW
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Before continuing the following test, always check the Air Pump Assembly in-line connectors. Ensure that there is no terminal damage, corrosion or backed out terminals. Verify that there is good wire to terminal connection in the connector. Start the engine.With the DRBIII®, read the MAF Sensor voltage.Is the voltage below.07829 of a volt?Yes --> Go To 2No --> Refer to the INTERMITTENT CONDITION .Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 2 | Turn the ignition off. Disconnect the MAF Sensor harness connector. Ignition on, engine not running. Using the DRBIII®, actuate the ASD Relay. With a 12-volt test light connected to ground, probe the ASD Relay Output circuit in the MAF harness connector. Does the test light illuminate brightly? Yes --> Go To 3 No --> Repair the ASD Relay Output circuit Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 3 | With the MAF Sensor still disconnected. Ignition on, engine not running. With the DRBIII®, monitor the MAF Sensor voltage. Does the voltage read between 4.5 to 4.9 volts? Yes --> Replace the MAF Sensor. Perform POWERTRAIN VERIFICATION TEST VER - 5 . No --> Go To 4 |
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| 4 | Turn the ignition off. Disconnect the MAF Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the MAF Signal circuit at the MAF Sensor harness connector. Is the resistance below 100 ohms? Yes --> Repair the short to ground in the MAF Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . No --> Go To 5 |
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| 5 | Turn the ignition off. Disconnect the MAF Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between the MAF Signal circuit and the Sensor ground circuit in the MAF Sensor harness connector. Is the resistance below 100 ohms? Yes --> Repair the Sensor ground shorted to the MAF Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . No --> Go To 6 |
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| 6 |
NOTE:
Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair.RepairReplace and program the Powertrain Control Module in accordance with the Service Information.Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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