P0650

DTC P0650






GENERAL DESCRIPTION
A Malfunction Indicator Lamp (MIL) is used to notify the driver of malfunctions within the monitored powertrain (engine and transaxle) system that have an effect on emissions.

DTC DESCRIPTION
If there is Open, Short to ground or Short to power in MIL circuit, ECM/PCM sets DTC P0650.

DTC Detecting Condition:

Schematic Diagram - A/T:

Schematic Diagram - M/T:

MONITOR SCANTOOL DATA
1. Connect scantool to Data Link Connector(DLC).
2. IG "ON".
3. Select "Diagnostic Trouble Codes(DTCs)" mode, and then Press F4(DTAL) to check DTC's information from the DTCs menu
4. Confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions noted in the DTC detecting condition.




5. Read "DTC Status" parameter.
6. Is parameter displayed "History(Not Present) fault"?

NOTE:
- History (Not Present) fault : DTC occurred but has been cleared.
- Present fault : DTC is occurring at present time.

YES - Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM/PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

NO - Go to "Terminal& Connector Inspection" procedure

TERMINAL AND CONNECTOR INSPECTION
1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?

YES - Repair as necessary and go to "Verification of vehicle Repair" procedure.

NO - Go to "MIL circuit inspection" procedure.

POWER CIRCUIT INSPECTION
1. Key "OFF".
2. Disconnect Cluster connector(M09-1).




3. Measure the voltage between terminal 11 of Cluster harness connector and chassis ground.

Specification : B+

4. Is the measured voltage within specification?

YES - Go to "Control circuit inspection" procedure.

NO
- Check the fuse(CLUSTER 10A) between Battery and Engine MIL.
- Repair Open or Short in power circuit, and then go to "Verification of vehicle Repair" procedure.

CONTROL CIRCUIT INSPECTION
1. Key "OFF".
2. Disconnect ECM/PCM connector.
3. Key "ON".







4. Measure the voltage between terminal 51/C01-2 of ECM/PCM harness connector and chassis ground. [A/T] Measure the voltage between terminal 70/C01 of ECM/PCM harness connector and chassis ground. [M/T]

Specification : MIL ON

5. Is the measured voltage within specification?

YES - Go to "Component inspection" procedure.

NO
- Check the filament of Engine MIL lamp.
- Repair Open or Short in control circuit, and then go to "Verification of vehicle Repair" procedure.

COMPONENT INSPECTION
1. Key "OFF".
2. Disconnect ECM/PCM connector.







3. Short terminal 51/C01-2 of ECM/PCM harness connector to Ground. [A/T] Short terminal 70/C01 of ECM/PCM harness connector to Ground. [M/T]

Specification : MIL ON

4. Is the Engine MIL lamp lighting normally?

YES - Substitute with a known - good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and then go to "Verification of Vehicle Repair" procedure.

NO - Substitute with a known - good Cluster and check for proper operation. If the problem is corrected, replace Cluster and then go to "Verification of Vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode.
2. Clear the DTCs and Operate the vehicle within DTC Enable conditions in General information.
3. Are any DTCs present ?

YES - Go to the applicable troubleshooting procedure.

NO - System is performing to specification at this time.