3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Control Circuit Inspection" procedure. |
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.
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 "Control Circuit Inspection" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and disconnect the injector
Is the measured value withing specification?
| ▶ Go to "Check injector control Low" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and disconnect the injector
Is the measured value withing specification?
| ▶ Go to "Check injector circuit open" procedure. |
| ▶ RRepair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Disconnect battery (-) cable.
Refer to "Shop Manual" and disconnect the injector
Is the measured value within specification?
| ▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired 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 go to "Verification of vehicle Repair" procedure. |
| ▶ If no problems were found with the circuits or connectors, Replace the PCM/ECM and go to "Verification of Vehicle Repair" procedure. |
After replacing a new ECM, ODO meter and Injector ID No.(7 digits) should be input onto the ECM.
If the vehicle has the immobilizer, perform "Key Teaching" of S/W Management and input injector ID No.
When replacing the ECM, the vehicle equipped with immobilizer or smartkey must be performed the procedure as below.
[In the case of installing used ECM]
1) Perform "Neutral mode" procedure with GDS. (Refer to "Immobilizer" in BE group)
2) Insert the key and turn it to the IGN ON and OFF position.
Then the ECM key register process is completed automatically.
[In the case of installing new ECM]
– Insert the key and turn it to the IGN ON and OFF position.
Then the ECM key register process is completed automatically.
Ignition Switch "OFF"
Connect GDS to Data Link Connector(DLC).
Ignition Switch "ON" & Engine "OFF"
Perform "Component Change Routine"of "Vehicle S/W Management" with GDS.
Select "ECU Change".
Fig.1 ) S/W Management List of U2 Engine
Fig.2 ) Component Change Routine
Fig.3 ) ECU Change
Fig.4 ) Final Quastion
Fig.5 ) Complete
