5.
Read "DTC Status" parameter.
A Malfunction Indicator Lamp (MIL) is used to notify the driver of malfunctions within the monitored powertrain (engine and transaxle) systems that have an effect on emissions.
If there is Open, Short to ground or Short to power in MIL circuit, PCM sets DTC P0650.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Circuit continuity check, high, low, or open | ● Poor connection ● Open or short in power/control circuit ● Instrument cluster |
Enable Conditions | ||
Threshold Value | ● Short circuit to battery, ground, or disconnected | |
Diagnostic Time | ● Continuous |
Connect scantool to Data Link Connector(DLC).
IG "ON".
Select "Diagnostic Trouble Codes(DTCs)" mode, and then Press F4(DTAL) to check DTC'sinformation from the DTCs menu
Confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditionsnoted in the freeze frame data or enable conditions noted in the DTC detecting condition.
Read "DTC Status" parameter.
Is parameter displayed "History(Not Present) fault"?
History fault : DTC occurred but has been cleared.
Present fault : DTC is occurring at present time.
▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or wasrepaired and ECM 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.
▶ Go to "Terminal and connector inspection" procedure.
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.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
▶ Repair as necessary and go to "Verification of vehicle Repair" procedure.
▶ Go to "MIL circuit inspection" procedure.
Key "OFF".
Disconnect Cluster connector(M01-A).
Measure the voltage between terminal 13 of Cluster harness connector and chassis ground.
Specification : B+
Is the measured voltage within specification?
▶ Go to "Control ciruit inspection" procedure.
▶ 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.
Key "OFF".
Disconnect PCM connector.
Key "ON".
Measure the voltage between terminal 51/CGGA-A of PCM harness connectorand chassis ground. [A/T]
Measure the voltage between terminal 70/CGGM-K of ECM harness connectorand chassis ground. [M/T]
Specification : B+
Is the measured voltage within specification?
▶ Go to "Component inspection" procedure.
▶ Check the MIL bulb.
▶ Repair Open or Short in control circuit, and then go to "Verification of vehicle Repair" procedure.
Key "OFF".
Disconnect ECM connector.
Short terminal 51 of PCM harness connector to Ground. [A/T]
Short terminal 70 of ECM harness connector to Ground. [M/T]
Specification : Lighting Engine MIL lamp on cluster.
Is the Engine MIL lamp lighting normally?
▶ Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between ECM and component thoroughly. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
▶ 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.
After a repair, it is essential to verify that the fault has been corrected.
Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode.
Press F4(DTAL) and confirm that "DTC Readiness Flag" indicates "Complete".
If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.
Read "DTC Status" parameter.
Is parameter displayed "History(Not Present) fault"?
▶ System performing to specification at this time. Clear the DTC.
▶ Go to the applicable troubleshooting procedure.
