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 - P2432-MAF SENSOR HIGH
| 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 above 4.9267 volts?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. Disconnect the PCM harness connector. Measure the resistance between the MAF Signal circuit and the ASD Relay Output circuit in the MAF Sensor harness connector. Is the resistance below 100 ohms? Yes --> Repair the MAF Signal circuit for a short to the ASD Relay Output circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . No --> Go To 3 |
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| 3 | Turn the ignition off. Disconnect the MAF Sensor harness connector. Disconnect the PCM harness connector. Ignition on, engine not running. Measure the voltage of the MAF Signal circuit in the MAP Sensor harness connector. Is the voltage above 5.0 volts? Yes --> Repair the short to battery voltage in the MAF Signal circuit. 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. Connect a jumper wire between the MAF Sensor Signal circuit and the Sensor ground circuit. With the DRBIII®, monitor the MAF Sensor voltage. Ignition on, engine not running. Is the voltage below.05 volt? Yes --> Replace the MAF Sensor. 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.
CAUTION:
DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS. Measure the resistance of the MAF Signal circuit from the MAF Sensor harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes --> Go To 6 No --> Repair the open in the MAF Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 6 | Turn the ignition off. Disconnect the MAF Sensor harness connector. Disconnect the PCM harness connector.
CAUTION:
DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS. Measure the resistance of the Sensor ground circuit from the MAP Sensor harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes --> Go To 7 No --> Repair the open in the Sensor ground circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 7 |
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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